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随机激励下一类含分数阶阻尼的轮胎的振动响应

范院琴 徐伟 韩群 杨勇歌

范院琴, 徐伟, 韩群, 杨勇歌. 随机激励下一类含分数阶阻尼的轮胎的振动响应[J]. 应用数学和力学, 2014, 35(12): 1330-1340. doi: 10.3879/j.issn.1000-0887.2014.12.005
引用本文: 范院琴, 徐伟, 韩群, 杨勇歌. 随机激励下一类含分数阶阻尼的轮胎的振动响应[J]. 应用数学和力学, 2014, 35(12): 1330-1340. doi: 10.3879/j.issn.1000-0887.2014.12.005
FAN Yuan-qin, XU Wei, HAN Qun, YANG Yong-ge. Vibration Responses of Rubber Tires With Fractional Damping Under Stochastic Excitation[J]. Applied Mathematics and Mechanics, 2014, 35(12): 1330-1340. doi: 10.3879/j.issn.1000-0887.2014.12.005
Citation: FAN Yuan-qin, XU Wei, HAN Qun, YANG Yong-ge. Vibration Responses of Rubber Tires With Fractional Damping Under Stochastic Excitation[J]. Applied Mathematics and Mechanics, 2014, 35(12): 1330-1340. doi: 10.3879/j.issn.1000-0887.2014.12.005

随机激励下一类含分数阶阻尼的轮胎的振动响应

doi: 10.3879/j.issn.1000-0887.2014.12.005
基金项目: 国家自然科学基金(11172233;11302169)
详细信息
    作者简介:

    范院琴(1990—),女,江西人,硕士生(E-mail: fanyuanqin2012@126.com);徐伟(1957—),男,浙江人,教授,博士生导师(通讯作者. E-mail: weixu@nwpu.edu.cn).

  • 中图分类号: O246

Vibration Responses of Rubber Tires With Fractional Damping Under Stochastic Excitation

Funds: The National Natural Science Foundation of China(11172233;11302169)
  • 摘要: 基于随机平均法研究了Kanai-Tajimi噪声激励下含分数阶阻尼的轮胎动力学系统的响应.首先将地震波近似为Kanai-Tajimi噪声,结合点接触模型和分数阶导数模型,建立轮胎的动力学方程,然后运用随机平均法求解振动位移的稳态概率密度函数的解析解,最后通过Monte-Carlo数值模拟验证了该方法的有效性.利用振动位移的概率密度求解聚丁二烯橡胶、丁基B252橡胶轮胎振动位移的均值与方差,并以此为依据考察这两类橡胶的减振性能.研究结果表明,轮胎振动位移的均值和方差随橡胶的储能模量的增大而增大,随耗散模量的增大而减小,这说明减小橡胶的储能模量或增大耗散模量可有效改善轮胎的减振性能.所得结果可为轮胎的设计与制造提供一定的理论基础.
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出版历程
  • 收稿日期:  2014-05-13
  • 修回日期:  2014-11-04
  • 刊出日期:  2014-12-15

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