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Article

Influence of Secondary Factors of Spindle Geometry on the Dynamic Stability in End-milling Operation

1Department of Mechanical Engineering, National Institute of Technology, Rourkela, India


Journal of Mechanical Design and Vibration. 2014, 2(2), 35-46
DOI: 10.12691/jmdv-2-2-1
Copyright © 2014 Science and Education Publishing

Cite this paper:
Jakeer Hussain Shaik, J. Srinivas. Influence of Secondary Factors of Spindle Geometry on the Dynamic Stability in End-milling Operation. Journal of Mechanical Design and Vibration. 2014; 2(2):35-46. doi: 10.12691/jmdv-2-2-1.

Correspondence to: Jakeer  Hussain Shaik, Department of Mechanical Engineering, National Institute of Technology, Rourkela, India. Email: jakeershaik786@yahoo.co.in

Abstract

Chatter is a issue of uncertainty in the metal reducing procedure. The trend is characterized by aggressive oscillations, noisy sound and low quality of surface finish. Chatter causes a reduction of the life of the device and affects the efficiency by disrupting the regular functioning of the machining procedure. This paper presents a coupled model of high-speed end-mill spindle system by considering the dynamics of angular contact ball bearings and cutting forces. Initially, the spindle device is examined by considering the gyroscopic and centrifugal terms using Timoshenko beam theory. Hertz bearing contact forces considered at front and rear side ends of the spindle. Frequency response functions at the tool-tip are obtained from the dynamic spindle model. In the second phase, solid model of the system is developed and its dynamic response is obtained from three dimensional finite element analysis. After, verification of the outcomes with beam theory concept, the stability lobes are plotted from the tool-tip frequency response (FRF). Later parametric analysis are conducted for different tool-overhang measures, bearing span values and helix angle of the cutting tool conditions to effectively plot the stability lobes for the spindle system.

Keywords

References

[1]  Altintas, Y. and Budak, E, “Analytical prediction of stability lobes in milling,” Annals of the CIRP, 44. 357-362. 1995.
 
[2]  Schmitz, T.L., Davies, M.A., Medicus, K. and Snyder, J, “Improving high-speed machining material removal rates by rapid dynamic analysis,” Annals of the CIRP, 50. 263-268. 2001.
 
[3]  Schmitz, T.L., Ziegert, J.C., Stanislaus, C., “A method for predicting chatter stability for systems with speed-dependent spindle dynamics,” Trans. North Amer. Manuf. Res. Institution of SME, 32. 17-24. 2004.
 
[4]  Schimtz, T.L. and Duncan, G.S, “Three-component receptance coupling substructure analysis for tool point dynamics prediction,” J Manuf Sci Eng, 127. 781-791. 2005.
 
[5]  Cheng, C.H., Schmitz, T.L. and Duncan, G.S, “Rotating tool point frequency response prediction using RCSA,” Machining Science and Technology, 11. 433-446. 2007.
 
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[6]  Jun, Z., Tony, S., Wanhua, Z. and Bingheng, L.U, “Receptance coupling for tool point dynamics prediction on machine tools,” Chinese J. Mech. Engg, 24. 1-6. 2011.
 
[7]  Kumar, U.V. and Schmitz, T.L, “Spindle dynamics identification for Receptance Coupling Substructure Analysis,” Precision Engineering, 36. 435-443. 2012.
 
[8]  Erturk, A., Budak, E. and Ozguven. H.N, “Selection of design and operational parameters in spindle-holder-tool assemblies for maximum chatter stability by using a new analytical model,” Int. J. Machine Tools & Manf, 47.1401-1409. 2007.
 
[9]  Faassen, R.P.H., Wouw, N.V., Oosterling, J.A.J. and Ijmeijer. H.N, “Prediction of regenerative chatter by modelling and analysis of high-speed milling,” Int. J. Machine Tools & Manf, 43. 1437-1446. 2003.
 
[10]  Abele, E. and Fiedler, U, “Creating stability lobe diagrams during milling,” Annals of the CIRP, 53. 309-312. 2004.
 
[11]  Zaghbani, I. and Songmene, V, “Estimation of machine-tool dynamic parameters during machining operation through operational modal analysis,” Int. J. Machine Tools & Manf, 49. 947-957. 2009.
 
[12]  Chen, C.H. and Wang. K.W, “An integrated approach toward the dynamic analysis of high-speed spindles:Part-2. Dynamics under moving end load,” J. Vibration and Acous. Trans. ASME, 116. 514-522. 1994.
 
[13]  Tian, J.F. and Hutton. S.G, “Chatter instability in milling systems with flexible rotating spindles-a new theoretical approach,” J.Manuf. Sci. and Engg. Trans. ASME, 123. 1-9. 2001.
 
[14]  Xiong, G.L., Yi, J.M., Zeng, C., Guo, H.K. and Li, L.X, “Study of the gyroscopic effect of the spindle on the stability characteristics of the milling system,” Journal of Materials Processing Technology, 138. 379-384. 2003.
 
[15]  Movahhedy, M.R. and Mosaddegh, P, “Prediction of chatter in high speed milling including gyroscopic effects,” Int. J. Machine Tools & Manuf, 46. 996-1001. 2006.
 
[16]  Gagnol, V., Bougarrou, B.C., Ray, P. and Barra, C, “Stability based spindle design optimization,” J. Man. Sci. Eng. Trans. ASME, 129. 407-415. 2007.
 
[17]  Jiang, S. and Zheng, S, “A modeling approach for analysis and improvement of spindle-drawbar-bearing assembly dynamics,” Int. J.Mach. Tools & Manuf, 50. 131-142. 2010.
 
[18]  Gao, S.H., Meng, G. and Long, X.H, “Stability prediction in high-speed milling including the thermal preload effects of bearing,” J. Process Mech.Engg, Proc. IMechE, 224. 11-22. 2010.
 
[19]  Cao, H., Holkup, T. and Altintas, Y, “A comparative study on the dynamics of high speed spindles with respect to different preload mechanisms,” Int J Adv Manuf Technol, 57. 871-883. 2011.
 
[20]  Gagnol, V., Le, T.P. and Ray, P, “Modal identification of spindle-tool unit in high-speed machining,” Mech. Sys. Sig. Proc, 25. 238-239. 2011.
 
[21]  Cao, H., Li, B. and He, Z, “Chatter stability of milling with speed-varying dynamics of spindles,” Int.J.Mach.Tools and Manuf, 52. 50-58. 2012.
 
[22]  Cao, Y. and Altintas, Y, “A general method for modeling of spindle bearing system,” J. Mech. Design, Trans. ASME, 126. 1089-1104. 2004.
 
[23]  Rantatalo, M., Aidanpaa, J.O., Goransson, B. and Norman, P, “Milling machine spindle analysis using FEM and non-contact spindle excitation and response measurement,” Int. J. Machine Tools & Manuf, 47. 1034-1045. 2007.
 
[24]  Nelson, H.D, “A finite rotating shaft element using Timoshenko beam theory,” J. of machine design, 102. 793-803. 1980.
 
[25]  Liu, D., Zhang, H., Tao, Z. and Su, Y, “Finite element analysis of high-speed motorized spindle based on ANSYS,” The open Mechanical Engineering Journal, 5. 1-10. 2011.
 
[26]  Quo, Q., Sun, Y. and Jiang, Y, “On the accurate calculation of milling stability limits using third-order full-discretization method,” International Journal of Machine Tools & Manufacture, 62. 61-66. 2012.
 
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Article

Nonlinear Vibration of Embedded Annular Boron Nitride Sheets Using Differential Quadrature Method

1Department of Petroleum Engineering, Faculty of Petroleum and Renewable Energy Engineering, UniversitiTeknologi Malaysia, 81310 UTM, Johor, Malaysia


Journal of Mechanical Design and Vibration. 2014, 2(2), 47-52
DOI: 10.12691/jmdv-2-2-2
Copyright © 2014 Science and Education Publishing

Cite this paper:
Reza CheraghiKootiani. Nonlinear Vibration of Embedded Annular Boron Nitride Sheets Using Differential Quadrature Method. Journal of Mechanical Design and Vibration. 2014; 2(2):47-52. doi: 10.12691/jmdv-2-2-2.

Correspondence to: Reza  CheraghiKootiani, Department of Petroleum Engineering, Faculty of Petroleum and Renewable Energy Engineering, UniversitiTeknologi Malaysia, 81310 UTM, Johor, Malaysia. Email: rchi1986@gamil.com

Abstract

One of the most promising materials for nanotechnology is annular Boron Nitride sheets (ABNSs). In this study, however, differential quadrature method (DQM) and nonlocal piezoelasticity theory are used to investigate the nonlinear vibration response of embedded single layered annular Boron Nitride sheets (SLABNSs). The interactions between the SLABNSs and its surrounding elastic medium are simulated by nonlinear Pasternak foundation. A detailed parametric study is conducted to elucidate the influences of the nonlocal parameter, elastic medium, temperature change and maximum amplitude on the nonlinear frequency of the SLABNSs. The results are in good agreement with the previous researches.

Keywords

References

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[4]  Wang, Q. “Wave propagation in carbon nanotubes via nonlocal continuum mechanics”. Journal of Applied Physics, 98, (2005) pp. 124301.
 
[5]  Wang, L.F., Hu, H.Y. “Flexural wave propagation in single-walled carbon nanotubes”. Physical Review B, 71, (2005) pp. 195412.
 
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[6]  Narendar, S., Roy Mahapatra, D., Gopalakrishnan, S. “Prediction of nonlocal scaling parameter for armchair and zigzag singlewalled carbon nanotubes based on molecular structural mechanics, nonlocal elasticity and wave propagation”. International Journal of Engineering Science, 49, (2011) pp. 509-22.
 
[7]  Yan, Z., Jiang, L.Y. “The vibrational and buckling behaviors of piezoelectric nanobeams with surface effects”. Nanotechnology, 2, (2011) pp. 245703.
 
[8]  Reddy, J.N. “Nonlocal theories for bending, buckling and vibration of beams”. International Journal of Engineering Science, 45, (2007) pp. 288-307.
 
[9]  Huang, G.Y., Yu, S.W. “Effect of surface piezoelectricity on the electromechanical behavior of a piezoelectric ring”. physica status solidi b 243, (2006) pp. 22-4.
 
[10]  Yan, Z., Jiang, L.Y. “The vibrational and buckling behaviors of piezoelectric nanobeams with surface effects”. Nanotechnology, 22, (2008) pp. 245703
 
[11]  Simsek, M. “Nonlocal effects in the forced vibration of an elastically connected double carbon nanotube system under a moving nanoparticle”. Computational Materials Science, 50, (2011) pp. 2112-2123
 
[12]  Ke, L.L., Wang, Y.Sh., Wang, Zh.D. “Nonlinear vibration of the piezoelectric nanobeams based on the nonlocal theory” Composite Structures, 94, (2008) pp. 2038-2047.
 
[13]  Han, J.H., Lee, I. “Analysis of composite plates with piezoelectric actuators for vibration control using layerwise displacement theory”. Composite B: Engineering, 29, (1998) pp. 621-632.
 
[14]  Ghorbanpour Arani, A., Kolahchi, R., Mosallaie Barzoki, A.A. “Effect of material inhomogeneity on electro-thermo-mechanical behaviors of functionally graded piezoelectric rotating shaft”. Applied Mathematical Modelling 35, (2011) pp. 2771-2789.
 
[15]  Wang, Q. “On buckling of column structures with a pair of piezoelectric layers”. Engineering Structures, 24, (2002) pp. 199-205.
 
[16]  Mosallaie Barzoki, A.A., Ghorbanpour Arani, A., Kolahchi, R., Mozdianfard, M.R. “Electrothermo-mechanical torsional buckling of a piezoelectric polymeric cylindrical shell reinforced by DWBNNTs with an elastic core”. Applied Mathematical Modelling, 36, (2012) pp. 2983-95.
 
[17]  Mohammadimehr, M., Saidi, AR., Ghorbanpour Arani, A., Arefmanesh, A., Han, Q. “Torsional buckling of a DWCNT embedded on Winkler and Pasternak foundations using nonlocal theory”. Journal of Mechanical Science and Technology, 24, (2010) pp. 1289-99.
 
[18]  Ding, H.J., Wang, H.M., Ling, D.S. “Analytical solution of a pyroelectric hollow cylinder for piezothermoelastic axisymmetric dynamic problems”. Journal of Thermal Stresses, 26, (2003) pp. 261-76.
 
[19]  Wang, Q. “Axisymmetric wave propagation in a cylinder coated with apiezoelectric layer”. International Journal of Solids and Structures, 39, (2002) pp. 3023-37.
 
[20]  Shen, Zh.B., Tang H.L., Li, D.K., Tang, G.J. ” Vibration of single-layered graphene sheet-based nanome chanical sensor via nonlocal Kirchhoff plate theory”. Computational Materials Science, 61, (2012) pp. 201-205.
 
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Article

Investigations of Dynamic Characteristics of Eccentric Rotary Shaft of Wankelengine

1Department of Mechanical Engineering, RMD Singhad School of Engineering, Pune, India

2Department of Mechanical Engineering, M. E. Society’s College of Engineering, Pune, India


Journal of Mechanical Design and Vibration. 2014, 2(2), 53-59
DOI: 10.12691/jmdv-2-2-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
N. D. Pagar, S. H. Gawande. Investigations of Dynamic Characteristics of Eccentric Rotary Shaft of Wankelengine. Journal of Mechanical Design and Vibration. 2014; 2(2):53-59. doi: 10.12691/jmdv-2-2-3.

Correspondence to: N.  D. Pagar, Department of Mechanical Engineering, RMD Singhad School of Engineering, Pune, India. Email: pagar.nitin@gmail.com

Abstract

Accurate prediction of critical speeds in rotating machinery is of great importance to designer and many attempts have been made to calculate it exactly. At the design stage it is necessary to predict accurately the dynamic behavior of rotating system of rotating parts of Wankelengine in order to avoid resonant conditions at operating speeds. Critical speed of a rotating shaft differs from its non-rotating natural frequency. The main reason for this difference is known to be the gyroscopic momentum. So it is quite great important to determine the natural frequency of the eccentric shaft in non-rotating condition (free-free condition) i.e. degrees of freedom are not restricted. In this study the natural frequency and mode shapes are predicted for the eccentric shaft in free-free condition (non-rotating) by using the commercial software package (ANSYS) in its modal analysis option. And results obtained from it are compared with experimental modal analysis (FFT analyzer). The verified results leads to the prediction of the dynamic behavior of the eccentric shaft viz. design calculations, natural frequencies, mode shapes.

Keywords

References

[1]  JagdishLal and A. V. Church, “Centrifugal pump and blowers”, Metropolitan Book Co. Pvt. Ltd. New Delhi, pp. 135-138.
 
[2]  M.Behzad and A.R. Bastami, “Effect of Centrifugal force on natural frequency of lateral vibration of rotating shafts”, Journal of sound and vibration, vol. 274, no. 3-5, (2004), pp. 985-995.
 
[3]  D. H. Choi, J. H. Park and H. H. Yoo, “Modal analysis of constrained multibody systems undergoing rotational motion”, Journal of sound and vibration, vol. 280, no. 1-2, (2005), pp. 63-76.
 
[4]  S.S.Rao, “Rotor Dynamics”, Wiley, New York, 1983.
 
[5]  D.J.Inman, “Engineering Vibration”, 2nd ed. Prentice Hall, New Jersey, 2001, Tech Note, July 2005, (TN-DSA-003), “Basics of Modal Testing and Analysis”.
 
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[6]  I. Zeid and R. Sivasubramanian, “CAD/CAM” Revised first edition, TATA McGraw HILL Publishing Company Limited, New Delhi, pp. 653-728.
 
[7]  S.Gade and H. Herlufsen, “Digital filter technique versus FFT Technique for damping measurements”, Bruel&Kjaer Technical Review, No. 1, 1994, pp. 01-09.
 
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Article

Noise Level Reduction in Planetary Gear Set

1Department of Mechanical Engineering, M. E. Society’s College of Engineering, Pune, India

2Department of Mechanical Engineering, P. G. Moze College of Engineering, Wagholi Pune, India


Journal of Mechanical Design and Vibration. 2014, 2(3), 60-62
DOI: 10.12691/jmdv-2-3-1
Copyright © 2014 Science and Education Publishing

Cite this paper:
S.H. Gawande, S.N. Shaikh, R. N. Yerrawar, K.A. Mahajan. Noise Level Reduction in Planetary Gear Set. Journal of Mechanical Design and Vibration. 2014; 2(3):60-62. doi: 10.12691/jmdv-2-3-1.

Correspondence to: S.H.  Gawande, Department of Mechanical Engineering, M. E. Society’s College of Engineering, Pune, India. Email: shgawande@yahoo.co.in

Abstract

Planetary gears are very popular as a power transmission and extensively used in in a variety of industrial fields like automobiles, helicopters, aircraft engines, heavy machinery, and a variety of other applications. Despite their advantages, negative impacts on customer perception of quality from noise and vibration are ongoing issue. The noise induced by the vibration of planetary gear systems remains a key concern. Therefore in recent years to reduce gear vibrations different techniques have been proposed. In this paper the experimental work is carried out to study the effect of planet phasing on vibrations of planetary gear set. For this purpose experimental set up is built and trials were performed for two different arrangements i.e with phasing and without phasing. And it is seen that noise level and resulting vibrations were reduced by planet phasing arrangement. So from the experimental results it is observed that by applying the meshing phase difference one can reduced planetary gear set vibrations and noise.

Keywords

References

[1]  Richards, D., Pines, D. J., Passive reduction of gear mesh vibration using a periodic drive shaft, Journal of Sound and Vibration, 264, (2). 317-342, 2003.
 
[2]  Asiri, S., Baz, A., Pines, D., Periodic struts for gearbox support system, Journal of vibration and control, 11 (6), 709-721, 2005.
 
[3]  Jeong, C. G. Numerical study on reducing the vibration of spur gear pairs with phasing, Journal of Sound and Vibration, 329 (19), 3915-3927, 2000.
 
[4]  Hidaka, T., Terauchi, Y., and Nagamura, K., Dynamic behavior of planetary gears-6th report: Influence of meshing-phase, Bulletin of the Japan Society of Mechanical Engineers, 22 (169), 1026-1033, 1979.
 
[5]  A. Kahraman, Effect of Involute Contact Ratio on Spur Gear Dynamics, ASME Journal of Mechanical Design, 121 (1), 112-118, 1999.
 
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[6]  Schlege, R. G. & Mard, K. C., Transmission noise control-approaches in helicopter design, ASME Design Engineering Conference,New York, ASME paper 67-DE-58, 1967.
 
[7]  Kaharamam, A. & Blankership, G. W., Planet mesh phasing in Epicyclic gear sets, Proceedings of International Gearing Conference, Newcastle, PP. 99-104, 1994.
 
[8]  Parker, R. G., A physical explanation for the effectiveness of planet phasing to suppress planetary gear vibration, Journal of Sound and Vibration, 236 (4), 561-573, 2000.
 
[9]  Chen, Y. & Ishibashi, A., Investigation of Noise and vibration of planetary gear drives, ASMEPaper No. DETC2003/PTG-48065, pp. 507-513, 2003.
 
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Article

Validation of Results Obtained from Different Types of Fuzzy Controllers for Diagnosis of Inclined Edge Crack in Cantilever Beam by Vibration Parameters

1Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India


Journal of Mechanical Design and Vibration. 2014, 2(3), 63-68
DOI: 10.12691/jmdv-2-3-2
Copyright © 2014 Science and Education Publishing

Cite this paper:
Ranjan K. Behera, Dayal R. Parhi. Validation of Results Obtained from Different Types of Fuzzy Controllers for Diagnosis of Inclined Edge Crack in Cantilever Beam by Vibration Parameters. Journal of Mechanical Design and Vibration. 2014; 2(3):63-68. doi: 10.12691/jmdv-2-3-2.

Correspondence to: Ranjan  K. Behera, Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, India. Email: ranjancet@gmail.com

Abstract

In this paper, the crack diagnosis using intelligent techniques (using membership functions in different fuzzy controllers) have been developed for inverse investigation of the vibration parameters (like modal frequencies and mode shapes) and crack parameters (like crack location, crack depth and crack inclination) of an inclined edge crack cantilever beam. The vibration parameters are calculated from finite element (using ANSYS) and experimental analysis which are used as inputs to the different fuzzy controllers. The different fuzzy controllers are designed by taking several types of membership functions to calculate the crack parameters. The calculated first three modal frequencies and mode shapes are used to generate the number of fuzzy rules with three output crack parameters. Finally, the proposed intelligent techniques are validated by comparing the results obtained from both FEA and experimental analysis. All the results are obtained from fuzzy controllers are in good agreement with experimental results.

Keywords

References

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Article

Applications of Finite Element Stress Analysis of Heavy Truck Chassis: Survey and Recent Development

1Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena-83523, Egypt


Journal of Mechanical Design and Vibration. 2014, 2(3), 69-73
DOI: 10.12691/jmdv-2-3-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
Nouby M. Ghazaly. Applications of Finite Element Stress Analysis of Heavy Truck Chassis: Survey and Recent Development. Journal of Mechanical Design and Vibration. 2014; 2(3):69-73. doi: 10.12691/jmdv-2-3-3.

Correspondence to: Nouby  M. Ghazaly, Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena-83523, Egypt. Email: nouby.ghazaly@eng.svu.edu.eg

Abstract

Nowadays, transportation industry plays a major role in the economy of modern industrialized and developing countries. The goods and materials carried through heavy trucks are dramatically increasing. There are many aspects to consider when designing a heavy trucks chassis, including component packaging, material selection, strength, stiffness and weight. This paper reviews the most important research works, technical journal and conferences papers that have been published in the last thirteen year period (2002-2014). The paper focused on stress analysis of the heavy truck chassis using four finite element packages namely; ABAQUS, ANSYS, NASTRAN and HYPERVIEW. The results of reading this paper will give the researcher a summary of some recent and current developments in the field of vehicle design using finite element packages.

Keywords

References

[1]  K. P. Sirisha, R. Lalith Narayana, A. Gopichand, Ch. Srinivas, G. Ram Balaji Structural and Modal Analysis on A Frame Less Chassis Construction of Heavy Vehicle for Variable Loads” Journal of Engineering Research and Applications, Vol. 3, Issue 4, Jul-Aug 2013, pp. 2318-2323.
 
[2]  M. Ravi Chandra, S. Sreenivasulu, Syed Altaf Hussain, “Modeling and Structural analysis of heavy vehicle chassis made of polymeric composite material by three different cross sections” International Journal of Modern Engineering Research (IJMER), Vol. 2, Issue. 4, 2012 pp-2594-2600.
 
[3]  Mohd Azizi Muhammad Nora, b*, Helmi Rashida, Wan Mohd Faizul Wan Mahyuddinb, Mohd Azuan Mohd Azlanc, Jamaluddin Mahmud “Stress Analysis of a Low Loader Chassis” Procedia Engineering 41 (2012) 995-1001.
 
[4]  Sankararao Vinjavarapu, Unnam Koteswararao, V. Lakshmi Narayana “Design Optimization of Tipper Truck Body” International Journal of Engineering Research and Development, Volume 4, Issue 9 (November 2012), PP. 11-20.
 
[5]  Gauchia, A., Diaz, V., Boada, M.J.L., Boada, B.L. (2010). Torsional stiffness and weight optimization of a real bus structure. International Journal of Automotive Technology, vol. 11, p. 41-47.
 
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[7]  R. Rajappan, M. Vivekanandhan “Static And Model Analysis Of Chassis By Using FEA” Proceedings of the “National Conference on Emerging Trends In Mechanical Engineering 2013.
 
[8]  Practical Finite Element Analysis (Nitin S. Gokhale 2009).
 
[9]  Siraj Mohammad and Ali Sheikh “Analysis of universal coupling under different torque Condition” International Journal of Engineering Science & Advanced Technology, Volume-2, Issue-3, 690-694.
 
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[11]  Teo Han Fui, Roslan Abd. Rahman “Statics and Dynamics Structural Analysis of a 4.5 Ton Truck Chassis, Journal Mekanikal, December 2007, No. 24, 56-67.
 
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[13]  Roslan Abd Rahman, Mohd Nasir Tamin, Ojo Kurdi “Stress analysis of heavy duty truck chassis as a preliminary data for its fatigue life prediction using FEM” Jurnal Mekanikal December 2008, No. 26, 76-85.
 
[14]  Cicek Karaoglu, N. Sefa Kuralay “Stress analysis of a truck chassis with riveted joints” Elsevier Science B.V Finite Elements in Analysis and Design 38 (2002) 1115-1130.
 
[15]  D. Valladares, M. Carrera, L. Castejon, C. Martin “Development of a Numerical Technique for the Static Analysis of Bolted Joints by the FEM” Proceedings of the World Congress on Engineering 2013 Vol III, WCE 2013, July 3-5, 2013, London, U.K.
 
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[17]  Ji-xin Wang, Guo-qiang Wang, Shi-kui Luo, Dec-heng Zhou “Static and Dynamic Strength Analysis on Rear Axle of Small Payload Off-highway Dump Trucks” Int-ANSYS-Conf. 2004.
 
[18]  C. Karaoglu, N. Sefa Kuralay “Stress analysis of a truck chassis with riveted joints” Elsevier Science B.V Finite Elements in Analysis and Design. Vol 38, pp. 1115-1130, 2002.
 
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[22]  B. Hemant Patil, Sharad D. Kachave, Eknath R. Deore “Stress Analysis of Automotive Chassis with Various Thicknesses” IOSR Journal of Mechanical and Civil Engineering. Volume 6, Issue 1 (Mar.-Apr. 2013), PP 44-49, 2013.
 
[23]  Hirak Patel, Khushbu C. Panchal, Chetan S. Jadav “ Structural Analysis of Truck Chassis Frame and Design Optimization for Weight Reduction “International Journal of Engineering and Advanced Technology, Volume-2, Issue-4, April 2013.
 
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Article

Performance Enhancement of Fabric Dyeing Process by Parametric Optimization

1LANXESS IndiaPvt Ltd, Nagda (M.P) India

2IES IPS Academy, Indore (M.P) India

3Indian Institute of Technology, Indore (M.P.) India


Journal of Mechanical Design and Vibration. 2014, 2(4), 74-80
DOI: 10.12691/jmdv-2-4-1
Copyright © 2014 Science and Education Publishing

Cite this paper:
Kamal Ojha, Rahul Sharma, Sunil Pathak. Performance Enhancement of Fabric Dyeing Process by Parametric Optimization. Journal of Mechanical Design and Vibration. 2014; 2(4):74-80. doi: 10.12691/jmdv-2-4-1.

Correspondence to: Kamal  Ojha, LANXESS IndiaPvt Ltd, Nagda (M.P) India. Email: kamalojha28@gmail.com

Abstract

Central composite design a response surface methodology approach is used for design the experiments, by fluctuating the accompanying three parameters namely fabric heating temperature, peroxide dosing time 1 and peroxide dosing time 2, at five levels to investigate their effects on the quality of the fabric i.e. fabric GSM and fabric width. Twenty experiments are planned using RSM and from the detailed examination of the results and testing of the varying input parameters for their significance at 95% confidence interval using ANOVA technique by “Design expert version 8 of stat ease Inc” were performed to calculate the percentage contribution of the input parameters and their interactions on the responses. From the results of the response surface model it is found that the optimized parametric combination for obtaining the required quality of fabric as per the requirement of MOL i.e. fabric GSM 150 and fabric width 180 cm; are very much achievable by using the identified parametric combinations namely fabric heating temperature as 90C, peroxide dosing time 1 as 5 minutes and peroxide dosing time 2 as 7.5 minutes.

Keywords

References

[1]  Murugesh B. K. and Selvadass. M (2013) “Influence of Wet Processing on Properties of Single Jersey Knitted Fabrics” International Journal of Fiber and Textile Research 2013; 3(1): 18-30, ISSN 2277-7156.
 
[2]  Najafi et al. (2009) “One bath method dyeing of polyester/cotton blend fabric with sulphatoethylsulphonyl disperse/reactive dyes treatment by chitin biopolymer” African Journal of Biotechnology Vol. 8 (6), pp. 1127-1135.
 
[3]  Syed et al. (2013) “Dyeing of Organic Cotton Fabric using Conventional and Ultrasonic Exhaust Dyeing Method” Mehran University Research Journal of Engineering & Technology, Volume 32, No. 2, April, 2013, ISSN 0254-7821.
 
[4]  Saha et al. (2013) “Comparative study on Garments dyeing process and Fabric dyeing process on various parameters (PH, M: L, softener etc)” International Journal of Modern Engineering Research (IJMER), Vol. 3, Issue. 4, Jul - Aug. 2013, ISSN: 2249-6645, pp-2434-2441.
 
[5]  Tepparin et al. (2012) “Dyeing of Cotton, Bombyx Mori and Eri Silk Fabrics with the Natural Dye Extracted from Tamarind Seed” International Journal of Bioscience, Biochemistry and Bioinformatics, Vol. 2, No. 3, May 2012.
 
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[6]  Chowdhury et al. (2009) “Process for Level Dyeing of 100% Cotton knit Fabrics with reactive Dye” j. innov. dev. strategy. 3 (4): 1-8.
 
[7]  Kan and Law (2012) “Effect of Reactive Dyeing and cellulase Treatment on the pilling properties of Cotton Knitted Fabric” International Conference: Textiles & Fashion 2012, Bangkok Thailand.
 
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Article

Dynamic Analysis of a Dual-Disk Rotor Bearing System with Parametric Excitations

1Mechanical Engineering Department, GITAM University, Visakhapatnam, India

2Mechanical Engineering Department, NIT, Rourkela, India

3Mechanical Engineering Department, KG Reddy College of Engg. & Technology, Hyderabad, India


Journal of Mechanical Design and Vibration. 2014, 2(4), 81-86
DOI: 10.12691/jmdv-2-4-2
Copyright © 2014 Science and Education Publishing

Cite this paper:
BSN Murthy, J. Srinivas, Ravi Pratap Singh, K. Udaya Sri, LSNVP Kiran. Dynamic Analysis of a Dual-Disk Rotor Bearing System with Parametric Excitations. Journal of Mechanical Design and Vibration. 2014; 2(4):81-86. doi: 10.12691/jmdv-2-4-2.

Correspondence to: Ravi  Pratap Singh, Mechanical Engineering Department, NIT, Rourkela, India. Email: ravipratap1428@gmail.com

Abstract

This paper deals the dynamic analysis of a flexible low-speed rotor model having both rotational asymmetries and transverse shaft cracks. Asymmetric disks or transverse shaft cracks in rotors lead to parametric inertia (or stiffness) excitations in rotor-bearing system. When both of them appear in a rotor system, prediction of parametric instability behavior has not gained sufficient attention. Disk asymmetry is considered in terms of the mass and damping terms and shaft stiffness is dictated by the transverse crack location and depth. The rotor is discretized into five elements and the resultant double periodic problem is solved using explicit Runge-Kutta time integration scheme. The specialty of the problem is that in every time step of integration, an assembled stiffness and mass matrix is formulated. The resulting five coupled nonlinear second-order system of equations are solved and the unbalance response of the rotor is obtained under various conditions of relative disk asymmetries and crack depth ratio. The present outcomes can be employed for identification of the rotor system from the vibration response.

Keywords

References

[1]  N.D.S. Sudhakar and A.S. Sekhar, “Identification of unbalance in a rotor bearing system”, Journal of Sound and Vibration, vol. 330, pp. 2299-2313, 2011.
 
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[3]  K.Gaetan, K.Worden, A.F. Vakakis and J.C.Golinval, “Past, Present and future of nonlinear system identification in structural dynamics”, Journal of Mechanical Systems and Signal Processing, vol. 20, pp. 505-592, 2006.
 
[4]  Z.Shiyu and S.Jianjun, “Identification of non-linear effects in rotor systems using recursive QR factorization method”, Journal of Sound and Vibration, vol. 270, pp. 455-469, 2004.
 
[5]  K.D’Souza and B.I.Epureanu, “Multiple augmentations of nonlinear systems and generalized minimum rank perturbations for damage detection”, J. Sound and Vibration, vol. 23, pp. 101-121, 2008.
 
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[8]  T. H. Patel and A.K. Darpe, “Influence of crack breathing model on nonlinear dynamics of a cracked rotor”, Journal of Sound and Vibration, vol. 311, pp. 953-972, 2008.
 
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Article

Identification of Crack in Beam Using Hilbert – Huang Transform

1Department of Mechanical Engineering, College of Engineering, Osmania University, Hyderabad, India


Journal of Mechanical Design and Vibration. 2014, 2(4), 87-93
DOI: 10.12691/jmdv-2-4-3
Copyright © 2014 Science and Education Publishing

Cite this paper:
Mangesh Dilip Ratolikar, M Chandra Sekhar Reddy. Identification of Crack in Beam Using Hilbert – Huang Transform. Journal of Mechanical Design and Vibration. 2014; 2(4):87-93. doi: 10.12691/jmdv-2-4-3.

Correspondence to: Mangesh  Dilip Ratolikar, Department of Mechanical Engineering, College of Engineering, Osmania University, Hyderabad, India. Email: mangesh.ratolikar@gmail.com

Abstract

In this paper, investigations on vibrations of cracked beam structures and methodology for crack identification have been addressed. Here, the crack is modelled as transverse crack and it is considered as a small element and is later assembled with the other discretized elements using FEM techniques. Using this model, vibration analysis of simply supported, fixed-fixed, free-free and cantilever solid rectangular beams, with crack is carried out. The fundamental vibration modes of damaged beam are analyzed using Hilbert-Huang transform (HHT). The location of crack is determined by the sudden changes in the spatial variation of the transformed response. The results in both the simulation mode as well as experimental mode show that, HHT is an effective tool for the crack detection. The proposed technique is validated both analytically and experimentally thus the results shown have a good agreement with the established model.

Keywords

References

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Article

Determination of Optimal Stacking Sequence for Modal Characteristics Evaluation of Composite Marine Propeller Blade

1Department of Mechanical engineering, National Institute of Technology, Rourkela, India


Journal of Mechanical Design and Vibration. 2014, 2(4), 94-101
DOI: 10.12691/jmdv-2-4-4
Copyright © 2014 Science and Education Publishing

Cite this paper:
M.L. PavanKishore, R.K. Behera. Determination of Optimal Stacking Sequence for Modal Characteristics Evaluation of Composite Marine Propeller Blade. Journal of Mechanical Design and Vibration. 2014; 2(4):94-101. doi: 10.12691/jmdv-2-4-4.

Correspondence to: M.L.  PavanKishore, Department of Mechanical engineering, National Institute of Technology, Rourkela, India. Email: kishoremamdoor9 @gmail.com

Abstract

The design of optimum marine propeller is one of the most important aspects of naval architecture. With the increase in demands for high operating efficiency, power and low level of noise, vibration reduction the design of propellers became extremely complex. This paper describes the numerical prediction of free vibration characteristics of a B-series propeller using finite element approach as a base line method. The propeller analysis is performed as a single objective function subjected to the constraints imposed by cavitation, material strength and propeller thrust. An important aspect of autonomous underwater vehicle is to evaluate its modal characteristics in terms of its mode shapes and natural frequencies. The effect of stacking sequences, fibre orientation angles are studied and finally an optimum stacking sequence has been determined for optimum characteristics of B-series (B4-0.7) marine propellers.

Keywords

References

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