宏森軌道帶您了解重型卡車前軸的靜動態強度分析(xi)及(ji)試驗(yan)研究。

      前(qian)(qian)軸是(shi)汽車轉向從(cong)動(dong)橋的(de)(de)(de)(de)重要(yao)(yao)部件,其性能(neng)直接(jie)影(ying)響汽車的(de)(de)(de)(de)安(an)全性與(yu)可靠(kao)性。因此(ci),設計的(de)(de)(de)(de)前(qian)(qian)軸應(ying)具(ju)有(you)(you)足夠的(de)(de)(de)(de)靜強(qiang)度(du)和良好(hao)的(de)(de)(de)(de)動(dong)態性能(neng)。本文(wen)結(jie)合某重型(xing)卡車前(qian)(qian)軸的(de)(de)(de)(de)開(kai)發(fa)(fa),運(yun)用CAE對(dui)前(qian)(qian)軸進行有(you)(you)限(xian)(xian)元分析(xi)獲得其力學性能(neng),并(bing)通(tong)過臺架試(shi)驗(yan)進行驗(yan)證,主要(yao)(yao)研(yan)究(jiu)內容如下(xia)：利用三(san)維CATIA軟件建(jian)(jian)立(li)(li)前(qian)(qian)軸幾(ji)何(he)模(mo)(mo)型(xing),運(yun)用前(qian)(qian)處理(li)軟件HyperMesh對(dui)幾(ji)何(he)模(mo)(mo)型(xing)進行簡化及幾(ji)何(he)清(qing)理(li),建(jian)(jian)立(li)(li)前(qian)(qian)軸的(de)(de)(de)(de)有(you)(you)限(xian)(xian)元網格模(mo)(mo)型(xing)。對(dui)前(qian)(qian)軸在三(san)種典型(xing)工(gong)(gong)況(kuang)下(xia)的(de)(de)(de)(de)載(zai)荷進行計算,并(bing)利用OptiStruct進行靜力學分析(xi)。分析(xi)結(jie)果(guo)表明,三(san)種工(gong)(gong)況(kuang)下(xia),前(qian)(qian)軸均不(bu)會發(fa)(fa)生靜強(qiang)度(du)失效,在緊急(ji)制動(dong)工(gong)(gong)況(kuang)下(xia)危(wei)險(xian),側滑工(gong)(gong)況(kuang)次之(zhi),垂直靜載(zai)安(an)全。利用RADIOSS軟件對(dui)前(qian)(qian)軸進行模(mo)(mo)態分析(xi),運(yun)用蘭索斯法提取前(qian)(qian)軸自由狀(zhuang)態下(xia)的(de)(de)(de)(de)前(qian)(qian)六階(jie)(jie)固有(you)(you)頻(pin)率(lv)與(yu)振(zhen)型(xing)。前(qian)(qian)軸沒(mei)有(you)(you)發(fa)(fa)生振(zhen)動(dong)突變現象(xiang),并(bing)且前(qian)(qian)六階(jie)(jie)固有(you)(you)頻(pin)率(lv)遠大于路面的(de)(de)(de)(de)激勵頻(pin)率(lv)范(fan)圍0-50Hz,與(yu)人體的(de)(de)(de)(de)固有(you)(you)頻(pin)率(lv)也相離甚遠,不(bu)會引起前(qian)(qian)軸共振(zhen)。