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Analysis of the thermal buckling of annular disks in clutches under the condition of radial temperature gradient

机译：径向温度梯度条件下离合器中环形盘的热屈曲分析

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摘要

The buckling deformation model of annular disks subjected to thermal stresses caused by a radial temperature gradient is established, and the leading thermal stresses for buckling are studied. Multidisk clutch sliding experiments were designed to investigate the influence of the radial temperature gradient on the buckling of separator disks in a multidisk clutch. A separator disk with three temperature measurement holes was used to study the process of buckling by recording the output torque and the change in radial temperature. The theoretical results are verified by multidisk clutch sliding experiments. These analyses show that as the temperature gradient increases, the thermal stresses generated by the radial temperature gradient begin to influence the buckling deformation of the friction components. If the friction components are thinner than the critical thickness h(cr), the circumferential thermal stresses play a leading role in the buckling deformation. Conversely, the buckling deformation caused by the radial thermal stress will play a leading role.
机译：建立了圆盘在径向温度梯度作用下承受热应力的屈曲变形模型，并研究了屈曲的主要热应力。设计了多盘离合器滑动实验，以研究径向温度梯度对多盘离合器中分离盘屈曲的影响。通过记录输出扭矩和径向温度变化，使用带有三个测温孔的隔板来研究屈曲过程。通过多盘离合器滑动实验验证了理论结果。这些分析表明，随着温度梯度的增加，径向温度梯度产生的热应力开始影响摩擦组件的屈曲变形。如果摩擦分量小于临界厚度h（cr），则圆周热应力在屈曲变形中起主要作用。相反，由径向热应力引起的屈曲变形将起主导作用。

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  • 来源
    《Journal of thermal stresses》 |2017年第12期|1275-1284|共10页
  • 作者

    Li Mingyang; Ma Biao; Li Heyan; Li Huizhu; Yu Liang;

  • 作者单位

    Beijing Inst Technol, Sch Mech Engn, 5th Zhongguancun South St, Beijing 100081, Peoples R China;

    Beijing Inst Technol, Sch Mech Engn, 5th Zhongguancun South St, Beijing 100081, Peoples R China|Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing, Peoples R China;

    Beijing Inst Technol, Sch Mech Engn, 5th Zhongguancun South St, Beijing 100081, Peoples R China|Collaborat Innovat Ctr Elect Vehicles Beijing, Beijing, Peoples R China;

    Beijing Inst Technol, Sch Mech Engn, 5th Zhongguancun South St, Beijing 100081, Peoples R China;

    Beijing Inst Technol, Sch Mech Engn, 5th Zhongguancun South St, Beijing 100081, 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

    Buckling model; clutch; friction components; radial temperature gradient; thermal buckling;

    机译：屈曲模型离合器摩擦分量径向温度梯度热屈曲;

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