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主銷后傾角對(duì)獨(dú)立懸架汽車自激擺振極限環(huán)特性的影響
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國(guó)家自然科學(xué)基金資助項(xiàng)目(51050002)


Effect of Caster Angle on Multiple Limit Cycles in Independent Suspension Shimmy
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    摘要:

    考慮前輪定位參數(shù)應(yīng)用拉格朗日方程建立了獨(dú)立懸架汽車擺振系統(tǒng)4自由度模型?;谠撃P?,應(yīng)用數(shù)值分析方法仿真分析了主銷后傾角影響自激擺振中多極限環(huán)的速度區(qū)間及其數(shù)值特性,。結(jié)果表明,,隨著后傾角增大,,自激擺振中出現(xiàn)多極限環(huán)的速度區(qū)間提前,,而且隨著后傾角增大,,不穩(wěn)定極限環(huán)幅值減少,穩(wěn)定極限環(huán)的幅值增大,,但頻率變化不大,。研究結(jié)果為減小汽車自激擺振和多極限環(huán)現(xiàn)象控制提供了理論參考。

    Abstract:

    Considered the front alignment, a 4-DOF vehicle shimmy model with independent suspension was established by Lagrange equation. The numerical analysis for the speed range of multiple limit cycles and numerical characteristics was performed with respect to the change of the caster angle. It showed that the speed range of multiple limit cycles was advanced. The amplitude of unstable limit cycles was reduced. The amplitude of stable limit cycles was enlarged and the frequency didn’t change with increasing caster angle. The paper result was helpful to provide theoretical reference for reducing vehicle shimmy and controlling of multiple limit cycles.

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魏道高,蔣艮生.主銷后傾角對(duì)獨(dú)立懸架汽車自激擺振極限環(huán)特性的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(12):5-10. Wei Daogao,Jiang Gensheng. Effect of Caster Angle on Multiple Limit Cycles in Independent Suspension Shimmy[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(12):5-10.

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  • 在線發(fā)布日期: 2012-12-13
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