Analyses and Verification for the Dynamic Responses of a Track-Vehicle

• Main Authors: Jia-liang Liou, 劉家良
• Other Authors: none
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/66958621632433045670

碩士 === 國立臺灣科技大學 === 機械工程系 === 97 === For any railway system, wheel/rail interaction plays a key factor in running stability and riding comfort. The objective of this research is to establish a simulation program to study the running stability and riding comfort of a high-speed rail vehicle using the available vehicle parameters and track parameters. Numerical analysis method was adopted to develop a vehicle-track coupling mathematical model. To simulate the wheel/rail interaction, different running condition and measured rail irregularity were used in this study. The measured car body vibration values were applied to verify the simulation results. Simulation results indicated that a resonance phenomenon was observed for a running condition having constant-acceleration rate to reach velocity of 80m/sec. When rail irregularity was taken into account, simulation results were in good agreement with the measured values obtain form a running vehicle.