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首页> 外文期刊>Applied Acoustics >A modified dynamic stiffness calculation method of rubber isolator considering frequency, amplitude and preload dependency and its application in transfer path analysis of vehicle bodies
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A modified dynamic stiffness calculation method of rubber isolator considering frequency, amplitude and preload dependency and its application in transfer path analysis of vehicle bodies

机译：考虑频率，幅度和预载依赖性的橡胶隔离器改进的动态刚度计算方法及其在车身转移路径分析中的应用

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摘要

An accurate prediction of the dynamic stiffness of the rubber isolator is critical to vehicle noise, vibration, and harshness performance. However, it is rather difficult due to the fact that it is simultaneously influenced by their application environment factors such as frequency, amplitude, and preload, etc. So far, related studies are still few. In the present study, taking the typically used chassis rubber bushing as the research object, a series of dynamic stiffness tests for rubber bushings was conducted under different frequencies, amplitudes, and preloads conditions. The Zener model was adopted to consider the frequency dependence, and an operation coefficient was introduced to quantify the amplitude and preload dependence. In order to obtain the actual dynamic stiffness of such rubber isolator, a modified calculation method considering the frequency, amplitude, and preloads dependence was proposed. The effectiveness of the proposed method was validated through comparing the accelerations synthesized by the transfer path analysis method with experimentally measured values. Compared to the traditional approach, the response can be more accurately calculated by the proposed method. It was further applied in solving the abnormal door vibration problem in a typical SUV. The vibration contribution analysis shows that the reasons for the door vibration problem caused by excessive transmitted forces at the rear stabilizer bar bushing in the x-direction and z-direction. A solution based on the analysis of the influence of corresponding bushing dynamic stiffness on target acceleration was therefore adopted to solve the abnormal door vibration problem effectively. (C) 2020 Elsevier Ltd. All rights reserved.
机译：对橡胶隔离器的动态刚度的精确预测对于车辆噪声，振动和苛刻性能至关重要。然而，由于它同时受到频率，幅度和预加载等的应用环境因素同时影响，因此仍然很困难。到目前为止，相关的研究仍然很少。在本研究中，将典型使用的底盘橡胶衬套作为研究对象，在不同的频率，振荡和预载条件下进行一系列用于橡胶衬套的动态刚度测试。采用齐纳模型考虑频率依赖性，并引入了操作系统，以量化幅度和预加载依赖性。为了获得这种橡胶隔离器的实际动态刚度，提出了考虑频率，幅度和预载依赖性的修改的计算方法。通过比较通过通过通过实验测量值的转移路径分析方法合成的加速度来验证所提出的方法的有效性。与传统方法相比，可以通过所提出的方法更准确地计算响应。它进一步应用于典型SUV中的异常门振动问题。振动贡献分析表明，在X方向和Z方向上的后稳定杆衬套中的过度传动力引起的门振动问题的原因。因此采用基于分析对应衬套动态刚度对目标加速度的影响的解决方案来有效地解决了异常门振动问题。 （c）2020 elestvier有限公司保留所有权利。

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  • 来源
    《Applied Acoustics》 |2021年第4期|107780.1-107780.10|共10页
  • 作者

    Xia Erli; Cao Zhenglin; Zhu Xuewu; Qiu Sawei; Xue Zhigang; He Hong; Li Luoxing;

  • 作者单位

    Hunan Univ Coll Mech & Vehicle Engn State Key Lab Adv Design & Mfg Vehicle Body Changsha 410082 Hunan Peoples R China;

    China FAW Co Ltd State Key Lab Comprehens Technol Automobile Vibra Gen Res & Dev Inst Changchun 130013 Jilin Peoples R China;

    China FAW Co Ltd State Key Lab Comprehens Technol Automobile Vibra Gen Res & Dev Inst Changchun 130013 Jilin Peoples R China;

    Hunan Univ Coll Mech & Vehicle Engn State Key Lab Adv Design & Mfg Vehicle Body Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Mech & Vehicle Engn State Key Lab Adv Design & Mfg Vehicle Body Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Mech & Vehicle Engn State Key Lab Adv Design & Mfg Vehicle Body Changsha 410082 Hunan Peoples R China;

    Hunan Univ Coll Mech & Vehicle Engn State Key Lab Adv Design & Mfg Vehicle Body Changsha 410082 Hunan Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Rubber isolator; Dynamic stiffness; Operation coefficient; Transfer path analysis; Contribution analysis; Zener model;

    机译：橡胶隔离器;动态刚度;操作系统;转移路径分析;贡献分析;齐纳模型;

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