For products comprised of multiple parts such as machine tools, new transportation systems
and wind turbines, Mitsubishi Heavy Industries, Ltd. (MHI) is striving to improve their
performance and robustness through prediction of their performance by applying Multibody
Dynamics (MBD) to analyze the vibration characteristics of structural components and the load
transfers in the machine components. We have developed a high-precision analytical model for
gear-cutting machine, for which the mechanical vibrations directly affects the product's
performance with the help of correlation analysis between simulation results and the experimental
measurement results of the oscillation. This paper reports a summary thereof.