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对角受拉方膜褶皱变形幅值的理论预测及实验验证

曹进军 张卉婷 张亮 彭福军 恽卫东

曹进军, 张卉婷, 张亮, 彭福军, 恽卫东. 对角受拉方膜褶皱变形幅值的理论预测及实验验证[J]. 力学学报, 2019, 51(5): 1403-1410. doi: 10.6052/0459-1879-19-109
引用本文: 曹进军, 张卉婷, 张亮, 彭福军, 恽卫东. 对角受拉方膜褶皱变形幅值的理论预测及实验验证[J]. 力学学报, 2019, 51(5): 1403-1410. doi: 10.6052/0459-1879-19-109
Cao Jinjun, Zhang Huiting, Zhang Liang, Peng Fujun, Yun Weidong. THEORETICAL PREDICTION AND EXPERIMENTAL VERIFICATION OF WRINKLE AMPLITUDE IN A SQUARE MEMBRANE SUBJECTED TO DIAGONAL TENSION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(5): 1403-1410. doi: 10.6052/0459-1879-19-109
Citation: Cao Jinjun, Zhang Huiting, Zhang Liang, Peng Fujun, Yun Weidong. THEORETICAL PREDICTION AND EXPERIMENTAL VERIFICATION OF WRINKLE AMPLITUDE IN A SQUARE MEMBRANE SUBJECTED TO DIAGONAL TENSION[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(5): 1403-1410. doi: 10.6052/0459-1879-19-109

对角受拉方膜褶皱变形幅值的理论预测及实验验证

doi: 10.6052/0459-1879-19-109
基金项目: 1) 国家自然科学基金项目;上海航天科技创新基金项目(SAST2017-022);重庆市基础研究与前沿探索项目(cstc2016jcyjA0058);中央高校基本科研业务费前沿交叉项目资助(2019CDQYHK039)
详细信息
    通讯作者:

    张亮

  • 中图分类号: TU311.2

THEORETICAL PREDICTION AND EXPERIMENTAL VERIFICATION OF WRINKLE AMPLITUDE IN A SQUARE MEMBRANE SUBJECTED TO DIAGONAL TENSION

  • 摘要: 柔性薄膜结构广泛应用于航天飞行器的关键部件.形面平整度是影响薄膜结构性能的主要因素之一.褶皱幅值是评价薄膜反射面天线形面平整度的重要指标.褶皱幅值的大小与垂直于褶皱方向的横向应变密切相关.本文基于薄板稳定性理论,针对对角受拉方形薄膜建立了一个能够准确预测其褶皱变形幅值的理论模型.该模型考虑了横向拉伸力对薄膜变形的影响,将垂直于褶皱方向的位移分解为由泊松效应造成的横向收缩位移、由面外变形造成的褶皱位移以及由横向拉伸力造成的拉伸位移三个部分,重新推导了褶皱幅值的理论公式. 基于数字图像相关技术,对受拉方形薄膜进行了散斑实验测试. 利用双目视觉三维测量系统,测量了方形薄膜的三维位移场, 获得了薄膜的三维变形形貌和褶皱波形图,研究了褶皱幅值与拉伸载荷之间的非线性关系. 与已有理论模型相比,该模型进一步提高了褶皱幅值的计算精度, 与实验结果吻合良好.本文呈现的理论研究可为精确数值模型的建立及算法实现提供有意义的指导.

     

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出版历程
  • 收稿日期:  2019-04-27
  • 刊出日期:  2019-09-18

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