本文關(guān)鍵詞：麥弗遜轉(zhuǎn)向懸架的運(yùn)動(dòng)學(xué)及其二系螺旋研究　出處：《重慶大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 麥弗遜轉(zhuǎn)向懸架 懸架運(yùn)動(dòng)學(xué) 二系螺旋 瞬時(shí)運(yùn)動(dòng)學(xué)

【摘要】：懸架系統(tǒng)是汽車底盤的重要組成部件,其性能的好壞直接影響到汽車的操縱穩(wěn)定性和行駛平順性,因此對(duì)懸架系統(tǒng)進(jìn)行運(yùn)動(dòng)學(xué)研究具有重要的學(xué)術(shù)意義和工程實(shí)用價(jià)值。本文以麥弗遜轉(zhuǎn)向懸架為研究對(duì)象,對(duì)其進(jìn)行運(yùn)動(dòng)學(xué)分析,并綜合考慮轉(zhuǎn)向和輪跳自由度,基于螺旋理論對(duì)其二系螺旋特性進(jìn)行研究,從而提出一種分析其瞬時(shí)運(yùn)動(dòng)學(xué)指標(biāo)的方法。主要工作如下:(1)建立麥弗遜轉(zhuǎn)向懸架的運(yùn)動(dòng)學(xué)分析模型,計(jì)算了懸架的自由度。根據(jù)麥弗遜懸架的結(jié)構(gòu)特點(diǎn),建立懸架的空間位置約束方程,計(jì)算出車輪某一轉(zhuǎn)向跳動(dòng)位置下的懸架位置和車輪位姿。(2)根據(jù)懸架位置和車輪位姿矩陣,定義了車輪某一轉(zhuǎn)向跳動(dòng)位置下的懸架運(yùn)動(dòng)學(xué)參數(shù)。利用MATLAB編程計(jì)算,繪制出懸架運(yùn)動(dòng)學(xué)參數(shù)隨車輪轉(zhuǎn)向、跳動(dòng)的變化,并進(jìn)行分析和評(píng)價(jià),揭示了車輪轉(zhuǎn)向、跳動(dòng)對(duì)懸架運(yùn)動(dòng)學(xué)的影響。(3)基于螺旋理論,分析了與懸架轉(zhuǎn)向和輪跳兩自由度運(yùn)動(dòng)對(duì)應(yīng)的二系螺旋,并計(jì)算了其和螺旋在主坐標(biāo)系下的方向、位置和節(jié)距,給出了表示其空間方位的擬圓柱面和節(jié)距分布,揭示了麥弗遜轉(zhuǎn)向懸架的二系螺旋特性。(4)根據(jù)懸架的二系螺旋特性,對(duì)車輪不同位置下懸架的瞬時(shí)運(yùn)動(dòng)進(jìn)行分析,揭示了其運(yùn)動(dòng)的螺旋軸線方向、位置和節(jié)距隨車輪轉(zhuǎn)向速度對(duì)跳動(dòng)速度的相對(duì)大小的分布及變化情況。根據(jù)車體坐標(biāo)系下的懸架運(yùn)動(dòng)螺旋,定義并計(jì)算了懸架運(yùn)動(dòng)學(xué)參數(shù)的瞬時(shí)變化。區(qū)別于傳統(tǒng)將轉(zhuǎn)向和輪跳特性分開單獨(dú)進(jìn)行研究的方法,本文基于螺旋理論,應(yīng)用二系螺旋概念,同時(shí)考慮轉(zhuǎn)向和輪跳兩個(gè)自由度,深刻揭示了轉(zhuǎn)向懸架的運(yùn)動(dòng)特點(diǎn)和性能特點(diǎn),為懸架運(yùn)動(dòng)學(xué)的研究提供了一種新的思路和方法。
[Abstract]:Suspension system is an important component of automobile chassis, its performance directly affects the handling stability and ride comfort of the vehicle. Therefore, the kinematics of suspension system has important academic significance and practical engineering value. This paper takes the Macpherson steering suspension as the research object, carries on the kinematics analysis to it. Considering the degree of freedom of steering and wheel jumping, the helical characteristics of the second system are studied based on the helical theory. A method of analyzing its instantaneous kinematics index is presented. The main work is as follows: 1) the kinematics analysis model of Macpherson steering suspension is established. The degree of freedom of suspension is calculated. According to the structural characteristics of Macpherson suspension, the space position constraint equation of suspension is established. Calculate the suspension position and wheel position under a certain steering position) according to suspension position and wheel position matrix. The kinematics parameters of suspension at a certain steering position are defined, and the kinematics parameters of suspension with wheel steering and runout are plotted by MATLAB programming, and analyzed and evaluated. The effect of wheel steering and runout on suspension kinematics is revealed. Based on the helical theory, the two-system helix corresponding to suspension steering and wheel jump motion is analyzed. The direction, position and pitch of the helix in the main coordinate system are calculated, and the quasi-cylindrical surface and pitch distribution of the helix are given. The second system helical characteristic of Macpherson steering suspension is revealed. According to the second system helical characteristic of suspension, the instantaneous motion of suspension under different position of wheel is analyzed, and the direction of helical axis of suspension motion is revealed. Distribution and variation of the relative position and pitch with the wheel steering speed to the runout speed. According to the suspension motion spiral in the car-body coordinate system. The instantaneous variation of kinematics parameters of suspension is defined and calculated, which is different from the traditional method of studying the steering and wheel-jump characteristics separately. Based on the helical theory, the concept of two-system helix is applied in this paper. At the same time, considering the two degrees of freedom of steering and wheel jumping, the kinematic and performance characteristics of steering suspension are deeply revealed, which provides a new way of thinking and method for the research of suspension kinematics.
【學(xué)位授予單位】：重慶大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：U463.33

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 iRiver;;后懸掛也有麥弗遜? 從凱美瑞看后懸撞的命名本質(zhì)[J];汽車與安全;2008年01期

2 ;支撐起移動(dòng)的世界[J];汽車與安全;2012年10期

3 壹家言;;雙叉臂和麥弗遜到底誰(shuí)好?[J];汽車知識(shí);2013年01期

4 吳志成;陳思忠;林程;張斌;;中型汽車用麥弗遜式前獨(dú)立懸架設(shè)計(jì)與仿真分析[J];車輛與動(dòng)力技術(shù);2005年04期

5 張俊;何天明;;麥弗遜前懸架的虛擬設(shè)計(jì)及優(yōu)化[J];北京汽車;2006年05期

6 耿雪霄;徐武彬;李冰;王鎮(zhèn)江;陳奇兵;;麥弗遜式懸架系統(tǒng)的性能測(cè)試臺(tái)的設(shè)計(jì)[J];機(jī)械設(shè)計(jì)與制造;2012年11期

7 壹家言;;這個(gè)前懸掛并不玄妙[J];汽車知識(shí);2013年05期

8 陸建輝;周孔亢;郭立娜;侯永濤;;電動(dòng)汽車麥弗遜前懸架設(shè)計(jì)及參數(shù)優(yōu)化[J];機(jī)械工程學(xué)報(bào);2012年08期

9 ;麥弗遜減振器[J];軍民兩用技術(shù)與產(chǎn)品;2009年05期

10 紙點(diǎn)車;老車;建明;;懸掛有多玄?[J];汽車知識(shí);2009年03期

相關(guān)會(huì)議論文 前3條

1 王玉惠;張書鵬;;前麥弗遜獨(dú)立懸架運(yùn)動(dòng)仿真[A];自主創(chuàng)新、學(xué)術(shù)交流——第十屆河南省汽車工程科學(xué)技術(shù)研討會(huì)論文集[C];2013年

2 陳德兵;y囍靖，

本文編號(hào)：1390012