High-accuracy Motion Prediction Using Large-scale Multibody Dynamics (MBD),Mitsubishi Heavy Industries Technical Review Vol.52 No.4(2015)

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. Note: Correlation is an approach to decrease the estimated gap in the rigidity, damping, etc., of an analytical model by comparative evaluation of observation results and analysis results.