本論文使用ANSYS有限元素分析軟體模擬二維皮帶傳動系統靜態與動態情形，改善以往的建模方式，使皮帶運轉前具有正確的預應力。另外，本論文亦模擬系統傳動高負載與低負載時的情形，並探討運轉時皮帶上的應力應變分佈、與滑輪接觸面的正壓力與摩擦力等現象。

　　皮帶系統負載低時，緊邊與鬆邊的張力相差不大，此時我們可觀察到皮帶呈現彎矩形狀時的應力狀態。另外，由於拉力纖維的楊氏模數遠大於橡膠層，所以可觀察到拉力纖維承受大部分的力量，以及橡膠層明顯的變形。當系統負載高時，除了彎矩的應力外，還可觀察到傳遞高扭力時緊邊張力大於鬆邊張力，皮帶與滑輪接觸面間的壓力分佈從進入滑輪到出滑輪漸漸降低等現象。

　　本論文亦與參考文獻的建模稍做比較，發現若要模擬皮帶傳動的情形，需使用本論文提出的建模，且無法避免大變形的非線性運算。

　　A two-dimensional finite element analysis on both static and dynamic procedures of the belt transmission system is presented in this paper. For proper pre-stress in belt, the model built in this paper has better results than the model in the previous reference paper. In addition, simulations of the system in both high load and low load are worked so the interesting issues, like stress and strain distribution on belt, pressure and friction stress presented on contact surface, can be discussed in the results.

　　When the belt transmission system is on low load, there is not much difference between tight side and slack side when comparing the tension force. The stress distribution from belt bending is observed in this moment. Because Young’s modulus of tension fiber is much larger than that of rubber layer, tension fiber takes most of loading and rubber layer strains obviously. When the belt transmission system is on high load, lots of phenomena are observed, including stress contribution which is from bending belt. For example, tension force in tight side is larger than that of slack side, pressure on contact surface declines from the entrance of the pulley to the exit of it.

　　After comparing the model of the reference paper and the model of this paper, we find that the model built in this paper should be used when simulating the belt transmission system. The nonlinear numerical calculation of large deformation will not be avoided.

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