國內在車輛-軌道耦合動力學研究中，於輪軌受力方面，應考慮輪軌接觸面上法線上的力以及切向的蠕滑力。又因輪軌滾動接觸會產生近似橢圓的接觸斑，在此接觸斑上有粘著-蠕滑的特性，且有縱向、橫向和自旋蠕滑的產生，本研究則針對輪軌滾動所產生接觸斑的力進行分析探討。
本研究所模擬的輪軌滾動情況為設定車輪蛇行規律的運動行駛在軌道上，為求輪軌蠕滑力/力矩，藉由縱向、橫向和自旋蠕滑率的推導與簡化後，帶回Kalker所提出蠕滑線性理論中計算，再利用Shen-Hedrick-Elkins理論進行非線性修正，以確定後續分析之需要。本研究根據不同的鋼軌型號以及不同軌底坡情況下，分析輪軌滾動接觸受力行為之影響。
研究結果顯示，UIC60鋼軌受力情況雖然比JIS60鋼軌的還大，但在曲率半徑轉換區間內，受力大小之變化比JIS60曲率半徑的搭配還要小且平穩。另外在比較UIC60三種軌底坡受力變化，發現隨著鋼軌軌底坡的增加，橫向蠕滑力和橫向力有減緩的趨勢。

The contact force in the normal direction of wheel/rail contact area and the creep force in the tangential direction are crucial in the researches of vehicle-track coupling systems. This study was designated to reveal the longitudinal、lateral and spin creep in the cases with different rail profiles and seating inclinations.
Based on the assumption of unchanging sinusoidal hunting, the creep force and creep moment were computed with the schemes by deriving and simplifying the longitudinal、lateral and spin creepages and then making use of Kalker’s linear theory. The results were further normalized with Shen-Hedrick-Elkins theory. The creep forces may illustrate vehicle running stability and potential of wheel/rail wear.
The results show that the creep forces on UIC60 profile are slightly larger than those on JIS60 rail. The variation of the creep forces along with wheel hunting was also found smoother on UIC60 rail. As for rail seating inclination, it was found that inclination reduced lateral creep forces.

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