铰接式自卸车平衡悬架系统橡胶弹簧刚度的非线性特性分析与优化

英文篇名：Non-linear stiffness analysis and optimization of rubber spring of articulated dump truck balanced suspension
中文刊名：东南大学学报(自然科学版)
英文刊名：Journal of Southeast University (Natural Science Edition)
作者：许志华 ; 孙蓓蓓 ; 孙庆鸿 ; 马铸 ; 李锁云 ; 王华君
英文作者：Xu Zhihua~1 Sun Beibei~1 Sun Qinghong~1 Ma Zhu~2 Li Suoyun~2 Wang Huajun~2(~1Department of Mechanical Engineering ; Southeast University ; Nanjing 210096 ; China)(~2Xuzhou Construction Machinery Group Ltd. Company ; Xuzhou 221006 ; China)
中文关键词：平衡悬架 ; 夹层橡胶弹簧 ; 刚度 ; 非线性 ; 有限元分析
英文关键词：balanced suspension ; laminated rubber ; spring stiffness ; nonlinear ; finite element analyses
出版日期：2005-04-20
机构：东南大学机械工程系,东南大学机械工程系,东南大学机械工程系,徐州工程机械集团有限公司,徐州工程机械集团有限公司,徐州工程机械集团有限公司南京210096 ,南京210096 ,南京210096 ,徐州221006 ,徐州221006 ,徐州221006
年：2005
期：02
出版单位：东南大学学报(自然科学版)

摘要

为了提高AD250铰接式自卸车的平顺性,对其平衡悬架夹层橡胶弹簧的刚度进行了分析和优化.建立了橡胶弹簧的参数化有限元接触模型,对弹簧轴向刚度的非线性特性进行了分析,分析结果与实验结果能很好地吻合.研究结果表明, 此橡胶弹簧刚度偏大且非线性特性不能满足悬架在不同载荷下具有等固有频率的要求,为此以固有频率 2Hz为优化目标对橡胶弹簧的参数进行了优化,优化后的橡胶弹簧能使车辆保持稳定且良好的平顺性.
The ride comfort of AD250 articulated dump truck is improved through analysis and optimization of the stiffness of laminated rubber spring in balanced suspension. The parameterized contact finite-element model of spring has been built, and non-linear stiffness in vertical direction has been analyzed in this paper. The result of analysis is consistent with experiment results very well. Results indicate that the improper nonlinear stiffness properties of rubber springs may lead to different natural frequency of rear suspension system under different load, resulting in poor side comfort. The structure parameters of rubber spring is therefore optimized to achieve a suspension natural frequency of 2Hz. The optimized rubber spring presents a good and steady vehicle ride comfort.

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