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旋转碰摩板热冲击振动的解析法研究

寇海江 袁惠群 赵天宇

寇海江, 袁惠群, 赵天宇. 旋转碰摩板热冲击振动的解析法研究[J]. 力学学报, 2014, 46(6): 946-956. doi: 10.6052/0459-1879-14-075
引用本文: 寇海江, 袁惠群, 赵天宇. 旋转碰摩板热冲击振动的解析法研究[J]. 力学学报, 2014, 46(6): 946-956. doi: 10.6052/0459-1879-14-075
Kou Haijiang, Yuan Huiqun, Zhao Tianyu. ANALYTICAL SOLUTION FOR ROTATIONAL RUBBING PLATE UNDER THERMAL SHOCK[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 946-956. doi: 10.6052/0459-1879-14-075
Citation: Kou Haijiang, Yuan Huiqun, Zhao Tianyu. ANALYTICAL SOLUTION FOR ROTATIONAL RUBBING PLATE UNDER THERMAL SHOCK[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(6): 946-956. doi: 10.6052/0459-1879-14-075

旋转碰摩板热冲击振动的解析法研究

doi: 10.6052/0459-1879-14-075
基金项目: 国家自然科学基金项目(51275081)和国家自然科学基金重点项目(51335003)资助.
详细信息
    作者简介:

    袁惠群,教授,主要研究方向:转子动力学.E-mail:yuan_hq@163.com

  • 中图分类号: O326

ANALYTICAL SOLUTION FOR ROTATIONAL RUBBING PLATE UNDER THERMAL SHOCK

Funds: The project was supported by the National Natural Science Foundation of China (51275081) and the State Key Program of National Natural Science of China (51335003).
  • 摘要: 提出了热冲击和碰摩故障共同作用下的旋转悬臂板系统动力特性解析解法. 基于变分原理,推导出考虑碰摩力沿宽度方向差异性的薄板系统运动微分方程,将该方程的解分解为热冲击悬臂板准静态解和碰摩薄板热冲击动力解. 通过计算旋转悬臂板的模态特性和温度分布函数,获得了碰摩叶片旋转悬臂板模型的热冲击振动解析解,讨论分析得出热冲击和碰摩故障对薄板振动的影响规律. 研究表明:碰摩振动表现为复杂的多频率耦合振动,高频振动较为显著;热冲击振动表现为简单的低频振动形式,强烈的热冲击导致碰摩薄板趋于低频振动. 碰摩引起的振动形式较热冲击故障更加复杂,更容易引起叶片的破坏. 增大的摩擦系数加剧了碰摩引起的振动,利用减小表面粗糙程度等方法降低摩擦系数,可以达到减小碰摩破坏程度的目的.

     

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出版历程
  • 收稿日期:  2014-03-21
  • 修回日期:  2014-05-23
  • 刊出日期:  2014-11-18

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