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首页> 外文期刊>Journal of Mechanical Science and Technology >Analysis of automotive rolling lobe air spring under alternative factors with finite element model
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Analysis of automotive rolling lobe air spring under alternative factors with finite element model

机译:替代因素下汽车滚动叶空气弹簧的有限元分析

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摘要

Air springs are widely used in automotive suspensions for their superior performance in terms of low friction motion, adjustable load carrying capacity and user-friendly ride height control. However, it has posed great difficulties in constructing an accurate model as well as the analysis of the influence of alternative factors, such as cord angle, cord diameter and initial pressure. In this paper, a numerical model of the rolling lobe air spring (RLAS) is built by using finite element method and compared with an existing analytical model. An experiment with respect to the vertical stiffness of the RLAS is carried out to validate the accuracy of the proposed model. Evaluation result reveals that the existing analytical model cannot represent the performance of the RLAS very well, whereas the accuracy of the numerical model is very good. With the verified numerical model, the impacts of many alternative factors on the characteristics of the RLAS are analyzed. Numerical results show that the newly proposed model is reliable to determine the vertical characteristic and physical dimensions of the RLAS under the alternative factors.
机译:空气弹簧由于其低摩擦运动,可调节的承载能力和用户友好的行驶高度控制等方面的卓越性能而被广泛用于汽车悬架。但是,它在建立精确的模型以及分析其他因素(例如帘线角度,帘线直径和初始压力)的影响方面带来了很大的困难。本文采用有限元方法建立了滚动叶片空气弹簧(RLAS)的数值模型,并与现有的解析模型进行了比较。进行了有关RLAS垂直刚度的实验,以验证所提出模型的准确性。评估结果表明,现有的分析模型不能很好地代表RLAS的性能,而数值模型的准确性却很好。通过验证的数值模型,分析了许多替代因素对RLAS特性的影响。数值结果表明,在替代因素的影响下,新提出的模型能够可靠地确定RLAS的垂直特征和物理尺寸。

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