動態減震器於車輛舒適性之設計

Design of Dynamic Vibration Absorber for Vehicle Ride Comfort

尤正吉(Cheng-Chi Yu) ； 張育誠(Yu-Cheng Zhang)

《中華民國振動與噪音工程學會論文集》 2013 (2013/06) Pp. 296-303

摘要

近年來電動車蓬勃發展，為了簡化車輛傳動系統，進而研究出輪轂馬達式電動車，此設計係將馬達直接安裝於輪胎上，此舉雖然使傳動效率增加，卻造成簧下質量過重；為改善此負面效應，本研究利用加裝動態減震器於懸吊系統上之概念來吸收輪胎的振動。動態減震器可分為外加質量、簧上質量轉移與簧下質量轉移等三種型態，外加質量與簧上質量轉移動態減震器亦可用於無簧下質量過重的車種上。本研究優化動態減震器參數，並以隨機路面輸入，評估人體加權加速度均方根值，求得其舒適性改善程度。本論文之設計結果可以讓未來動態減震器於車輛懸吊之應用與實現給予有效建議。

關鍵字

動態減震器 ； 懸吊系統 ； 舒適性

並列摘要

The goal of this study is improving the riding comfort, because it is an important issue in vehicle design. Nowadays, the electric vehicle has been developing rapidly, and there is one kind of electric vehicle called wheel-hub motor vehicle, that means, the energy source-motor is install in the wheel, so that it can simplify transmission system of vehicle; however, it makes riding comfort poorer because the unsprung mass is overweight. For improving this negative effect, this research used the dynamic vibration absorber to absorb the wheel vibration. Dynamic vibration absorbers can be divided among three types: extra mass, sprung mass transfer and unsprung mass transfer. The extra mass and unsprung mass transfer can also be used in vehicle with no overweight unsprung problem. This research optimizes the dynamic vibration absorber parameter, and then evaluates the effect of random road input on human body weighted acceleration R.M.S value, so that it can get improvement of the riding comfort. The conclusion of this thesis can give suggestions for application of vibration absorber on vehicle suspension in the future.

並列關鍵字

Dynamic Vibration Absorber ； Suspension System ； Ride Comfort