二輪車輛後懸吊機構之設計

隨著時代的進步以及生活型態的改變，人們對於休閒生活的品質要求也相對地提高。於是人們對於騎乘腳踏車與機車的操控性、舒適性及安全性的要求也愈來愈高；然而與舒適性有著密切影響的主要是懸吊系統的性能。因此研究動機便是設計腳踏車與機車後懸吊系統的構造與性能以達到騎乘平穩且安全舒適的目的。本研究方法首先是將具有旋轉與減震功能的接頭(Rotational damper joint，RD)，置入現有的腳踏車與機車的後懸吊系統中，再利用顏氏創意機構設計方法來合成出新型的後懸吊機構，用向量迴路法與虛功原理來推導建立後懸吊機構的力比與桿件尺寸位置的數學關係式，最後選寫MATLAB程式來計算與模擬後懸吊機構力比特性以確定本研究所提理論的可行性。本研究所提的的方法可得到1種可行的四桿後懸吊機構與5種可行六桿後懸吊機構。本研究結果指出後懸吊機構若有RD接頭裝置時的力比特性比沒有RD接頭的力比特性好；不論有沒有裝置RD接頭六桿七接頭後懸吊機構比四桿四接頭懸吊機構力比特性好。

關鍵字

二輪車輛；運動分析；旋轉與減震接頭；類型合成；拓樸構造

並列摘要

Controllability, comfort, and safety are important to people for riding bikes and motorcycles. However, a good suspension system design produces a comfortable riding. Hence, the purpose of this study is to creative design a new, comfortable, and safe mechanism of rear suspension system of two wheels vehicles. The concept of this study is a rotational damper pair replaces a revolute pair. First, this work is to analyze the topological structure and motion characteristics of existed rear suspension mechanisms. Then, the design criteria of the topological structure are described. Based on the design criteria of topology, the Yan’s methodology of mechanism design is applied to synthesize new rear suspension mechanisms. Furthermore, the kinematic and force ratio analysis of two new mechanisms is done well. Finally, we developed a computer program to calculate of the kinematic and force ratio characteristics of designed rear suspension mechanisms for improving the feasibility of provided theory . The results of his work are one (4,4) and five (6,7) new rear suspension mechanisms are founded. Additionally, .we also designed two feasible new rear suspension mechanisms whose motion and force ratio characteristics are better than the original ones.

並列關鍵字

topological ； Two Wheels Vehicles ； Type synthesis ； Rotational Damper Joint ； kinematic analysis

參考文獻

[1] Pennestri, E. and Strozzieri, A., “Optimal Design and Dynamic Simulation of a Motorcycle with Linkage Suspension,” Int. J. of Vechicle Design,1988, Vol. 9, No.3, pp. 339-350.

[5] 王宗興，自行車車架造型特徵對意象認知影響之研究，國立成功大學工業設計研究所，碩士論文，2002年6月。

[13] 莊以寬，腳踏車後懸吊系統之類型合成與運動分析，崑山科技大學機械工程研究所，碩士論文，2004年7月。

[2] 陳道遠，自行車騎乘在坡度震動環境下的主觀舒適度及生理反應之研究，國立成功大學工業設計研究所，碩士論文，1996年7月。