本研究係採用數值分析的方法，建立車輛與軌道耦合之數學模型，且應用高速鐵路之車輛及鋼軌參數，且應用以Skyhook控制為基礎之半主動式阻尼器之車輛懸吊系統，探討應用Skyhook阻尼之車輛，以等速行駛於具不同軌道不整度之直線與彎曲軌道，其車輛/軌道系統在垂向及側向之動態特性。
本研究之數值模擬結果顯示，當車輛行駛於完美直線軌道時，應用Skyhook阻尼對車廂中心之動態響應影響較轉向架大，而當車輛行駛於直線不整軌道時，其車廂中心側向位移有回原位置之趨勢也降低了車廂側向之加速度；懸吊系統以Skyhook控制阻尼之車輛行駛於完美或不整之彎曲軌道時，其影響動態響應之效果較明顯，可有效降低車輛之轉向架與車廂側向之位移及加速度響應。故車輛之次懸吊系統採用Skyhook控制之半主動式阻尼器可有效降低車廂之振動。

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, which based Skyhook control on semi-active suspension system. To simulate the dynamic response of running railway vehicle, different running conditions and measured rail irregularity were applied.
The simulation results is show that when vehicles running on a perfect straight track, Skyhook damping on the dynamic response of the carbody is more obviously. When the vehicles running on the straight or curve track with irregularity, the lateral displacement and acceleration could be reduce by semi-active suspension dampers, and the Skyhook damping could suppresses the lateral vibration of car-body effectively.

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