American Journal of Mechanical Engineering
ISSN (Print): 2328-4102 ISSN (Online): 2328-4110 Website: https://www.sciepub.com/journal/ajme Editor-in-chief: Kambiz Ebrahimi, Dr. SRINIVASA VENKATESHAPPA CHIKKOL
Open Access
Journal Browser
Go
American Journal of Mechanical Engineering. 2020, 8(4), 163-171
DOI: 10.12691/ajme-8-4-3
Open AccessArticle

Obtaining the Practical Formula for the Trim-tab Dimensions to Reach the Minimum Drag for Planing Boat

Matin Mohebbi1, , Mohammad A. Ghassemi1 and Hassan Ghassemi1

1Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran

Pub. Date: November 12, 2020

Cite this paper:
Matin Mohebbi, Mohammad A. Ghassemi and Hassan Ghassemi. Obtaining the Practical Formula for the Trim-tab Dimensions to Reach the Minimum Drag for Planing Boat. American Journal of Mechanical Engineering. 2020; 8(4):163-171. doi: 10.12691/ajme-8-4-3

Abstract

Trim-tab is a device for controlling and stabilizing planing boats in different sea conditions. This paper presents to find dimensions of the trim-tab at various speeds of the boat to reach the minimum drag. The speed of the boat is from15 m/s to 30m/s. Drag of the boat is calculated by Stavisky’s method. The minimum drag is found based on the optimum the trim angle. A Matlab program code is prepared for these calculations and all the all results such as drag, dimensions of the trim-tab, longitudinal center of pressure and time angle at different speeds of the boat are presented and discussed.

Keywords:
trim-tab drag planing boat Stavisky’s method

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

References:

[1]  Baker GS, Millar GH. Some Experiments in Connection with the Design of Floats for Hydro-Aeroplanes. ARC R&M. 1912(70).
 
[2]  Sottorf W. Experiments with Planing Surfaces, NACA TM 661, 1932 and NACA TM 739.
 
[3]  Shoemaker JM. Tank tests of flat and v-bottom planing surfaces.
 
[4]  Sambraus A. Planing-Surface Tests at Large Froude Numbers-Airfoil Comparison.
 
[5]  Savitsky D. Hydrodynamic design of planing hulls. Marine Technology and SNAME News. 1964 Oct 1; 1(04):71-95.
 
[6]  Brown PW. An experimental and theoretical study of planing surfaces with trim flaps. Stevens Inst of Tech Hoboken NJ Davidson Lab; 1971 Apr 1.
 
[7]  Savitsky D, Brown PW. Procedures for hydrodynamic evaluation of planing hulls in smooth and rough water. Marine Technology. 1976 Oct 13; 13(4): 381-400.
 
[8]  Humphree website, Humphree Stabilization system, April, 2011.
 
[9]  Metcalf BJ, Faul L, Bumiller E, Slutsky J. Resistance tests of a systematic series of US Coast Guard planing hulls. NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD; 2005 Dec.
 
[10]  Taunton D. J., Hudson D. A., and Shenoi R. A., Characteristics of a series of high-speed hard chine planing hulls-part 1: performance in calm water, Int J of Small Craft Tech, 152, pp. 55-75, 2010.
 
[11]  Begovic E and Bertorllo C, Resistance assessment of warped hull form, Ocean Eng, vol. 56, pp. 28-42, 2012.
 
[12]  Kim D. J, Kim S. Y, You Y. J, Rhee K. P, Kim S. H, and Kim Y. G, Design of high-speed planing hulls for the improvement of resistance and seakeeping performance, Int J of Naval Architecture and Ocean Eng, Vol.5, pp. 161-177, 2013.
 
[13]  Ma D. W, Sun H, Zou J and Yang H, Test research on the resistance performance of high-speed trimaran planing hull, Polish Maritime Research, Vol. 20, pp. 45-51, 2013.
 
[14]  Lee E, Pavvkov M and Leigh M, The systematic variation of step configuration and displacement for a double step planing craft, J of Ship Production and Design, vol. 30, pp. 89-97, 2014.
 
[15]  Faltinsen, O.M., Hydrodynamics of High-Speed Marine Vehicles (Chapter 9), 2005, Cambridge University Press, New York.
 
[16]  Ghadimi P, Loni A, Nowruzi H, Dashtimanesh A, Tavakoli S. Parametric study of the effects of trim tabs on running trim and resistance of planing hulls. Int. J. of Advances in Shipping and Ocean Engineering. 2014; 3(1):1-2.
 
[17]  Mansoori M, Fernandes AC. Hydrodynamics of the interceptor on a 2-D flat plate by CFD and experiments. Journal of Hydrodynamics. 2015 Dec 1; 27(6):919-33.
 
[18]  Ghassemi H. Ghiasi M., A combined method for the hydrodynamic characteristics of planing craft, Ocean Eng, 35 (3), 2008, 310-322.
 
[19]  Ghassemi H, Kohansal AR, Ghiasi M. Numerical prediction of induced pressure and lift of the planing surfaces, China Ocean Eng 23(2), 2009, 221-232.
 
[20]  Kohansal AR. Ghassemi H., A numerical modeling of hydrodynamic characteristics of various planing hull forms, Ocean Eng 37(5), 2010, 498-510.
 
[21]  Ghassemi H, Kohansal AR, Hydrodynamic analysis of nonplaning and planing hulls by BEM, Scientia Iranica. Transaction B, Mech Eng, 17(1), 2010, 41.
 
[22]  Kohansal AR, Ghassemi H, Ghiasi M, Hydrodynamic characteristics of high-speed planing hulls, including trim effects, Turkish J of Eng. and Environmental Sciences 34(3), 2011, 155-170.
 
[23]  Ghassabzadeh M, Ghassemi H, Automatic generation of the planing tunnel high speed craft hull form, J. Marine Sci. Appl., 2012, 11, 453-461.
 
[24]  Ghassabzadeh M, Ghassemi H, Numerical hydrodynamic of multihull tunnel vessel, Open J of Fluid Dynamics 3(3), 2013.
 
[25]  Ghassabzadeh M, Ghassemi H, An innovative method for parametric design of planing tunnel vessel hull form, Ocean Eng, 60, 2013, 14-27.
 
[26]  Ghassabzadeh M, Ghassemi H, Determining of the hydrodynamic forces on the multi-hull tunnel vessel in steady motion, J of the Brazilian Society of Mech. Sci & Eng., 2014, 36(4), 697-708.
 
[27]  Ghassemi H, Kamarlouei M, Veysi STG, A hydrodynamic methodology and CFD analysis for performance prediction of stepped planing hulls, Polish Maritime Research 22(2), 2015, 23-31.
 
[28]  Veysi STG, Bakhtiari M, Ghassemi H, Ghiasi M, Toward numerical modeling of the stepped and non-stepped planing hull, J of the Braz Soci of Mech Sci Eng, 2015, 37(6), 1635-1645.
 
[29]  Bakhtiari M, Veysi STG, Ghassemi H, Numerical modeling of the stepped planing hull in calm water, Int. J of Eng.-Trans B: Applications, 29 (2), 2016.
 
[30]  Sakaki A, Ghassemi H, Aslansefat K, Sadeghian M, Optimization of the drag force of planing boat with trim control system using genetic algorithm, American J. of Mech. Eng., 2017, 5(4), 161-166.
 
[31]  Sakaki A, Ghassemi H, Keyvani S. Evaluation of the hydrodynamic performance of planing boat with trim tab and interceptor and its optimization using genetic algorithm. Journal of Marine Science and Application. 2019 Jun 1; 18(2): 131-41.
 
[32]  Ghassemi H, Bahrami H, Vaezi A, Ghassemi MA. Minimization of resistance of the planing boat by trim-tab. International Journal of Physics. 2019; 7(1): 1-6.