eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2015-02-03 3 1 7 15 10.12691/ajme-3-1-2 AJME2015312 article Mounir Muhammad Koura 1 Muhammad Lotfy Zamzam 2 Amr Ahmed Sayed Shaaban Amr.Ahmed@eng.asu.edu.eg 3 Prof. Dr. in Faculty of Engineering, Ain Shams University, Egypt Asst. Prof. in Faculty of Engineering, Ain Shams University, Egypt PhD. Student in Faculty of Engineering, Ain Shams University, Egypt This paper presents a simulation system designed to evaluate the static and dynamic performance of machine tools. The design considerations of the evaluation system are discussed and the system is then employed in order to compare between various categories of milling machine's structure adapted for end milling operation. The machine performance is identified in terms of static loop stiffness in both x and y directions, mode shapes, and frequency response function (FRF) at tool center point (TCP). The advantage of such a reliable model is that it could replace the many experimental tests that must otherwise be carried out each time the parameters affecting the machine tool performance are changed. http://pubs.sciepub.com/ajme/3/1/2/ajme-3-1-2.pdf machine tools static performance natural frequencies dynamic behavior finite element method virtual system