Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : August 07, 2016 - August 10, 2016
Recent railway vehicle carbodies have been light weighted and structurally simplified. These carbodies tend to have flexural vibration modes with complicated three-dimensional deformation according to vibration measurement test results by the authors. The box-type model was proposed as a numerical analysis model to analyze these bending vibrations. This model can treat the three-dimensional vibration of the carbody with a small degree of freedom (DOF) compared with the finite element (FE) model. In the simulation of the railway vehicle, commercial multi-body simulation software SIMPACK is widely used. Therefore, it is considered that the various simulations in consideration of the flexural vibration of the carbody can be performed easily by importing the box-type model into SIMPACK. In this paper, we proposed a method to import the box-type model into SIMPACK. In this method, the box-type model was imported into SIMPACK through simple FE model having the same structure with the conventional boxtype model. Next, the running simulations to calculate the vertical vibration of the railway vehicle were carried out by using the analysis model. As a result, good agreements were obtained between the simulation results and the running test results in acceleration power spectral densities (PSDs) of each measurement point of the vehicle. From these results, the validity of the model was confirmed.
