| 导弹适配器受压及弹射时摩擦力研究 |
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| 引用本文： | 李士军,叶建华,赖孝君.导弹适配器受压及弹射时摩擦力研究[J].应用力学学报,2011,28(2). |
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| 作者姓名： | 李士军 叶建华 赖孝君 |
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| 作者单位： | 1. 中国船舶重工集团第713研究所,450015,郑州
2. 福建工程学院机电及自动化工程系,350014,福州 |
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| 摘 要： | 针对导弹适配器的结构特征,分别建立了可压缩橡胶泡沫和不可压橡胶圆筒轴对称平面应变问题有限变形的平衡方程,基于Blatz-Ko应变能函数和三次缩减多项式应变能函数,得到了相应的位移和应力模式;在此基础上求解了适配器受压问题的非线性方程组和导弹发射时适配器所受到的摩擦力.算例分析与有限元数值模拟比较表明:解析解与数值解非常吻合,径向应力在发射筒内外表面误差最大为0.558%,周向应力在粘合面误差最大为0.246%,导弹发射时的最大量纲为一的摩擦力为1.0228.适配器径向应力在材料粘合交界面上最小,在适配器外表面最大,均为压应力;橡胶泡沫和不可压橡胶的周向应力均为压应力,橡胶泡沫的周向应力由内向外变大,不可压橡胶的周向应力由内向外变小.橡胶泡沫的径向受压大于周向受压,不可压橡胶的周向受压大于径向受压.研究不同过盈量对应力和摩擦力的影响表明:过盈量每增加0.0013,橡胶泡沫 层和不可压橡胶层的径向应力约增加0.13,不可压橡胶层的周向应力约增加2.14,而摩擦力约增加0.22.过盈量对不可压橡胶层的周向应力和导弹所受到的摩擦力影响非常大,对橡胶泡沫的径向应力有一定的影响,周向应力变化很小.
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| 关 键 词： | 导弹适配器 轴对称平面应变 有限变形 应变能函数 摩擦力 |
The research on the compressed missile adapter and estimation of friction while being launched |
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| Li Shijun,Ye Jianhua,Lai Xiaojun.The research on the compressed missile adapter and estimation of friction while being launched[J].Chinese Journal of Applied Mechanics,2011,28(2). |
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| Authors: | Li Shijun Ye Jianhua Lai Xiaojun |
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| Institution: | Li Shijun1 Ye Jianhua2 Lai Xiaojun1(713th Research Institude of China Shipbuilding Industry Corporation,Zhengzhou,450015,China)1 (Electromechanical and Automation Engineering Department,Fujian University of Technology,Fuzhou,350014,China)2 |
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| Abstract: | According to static equilibrium equation,differential equations for axisymmetric plain strain problem of compressible elastomeric foam hollow cylinder and incompressible rubber hollow cylinder with finite deformation are established.The theory formulations for the displacement and stress are made out based on the Blatz-Ko strain energy function and incompressible polynomial strain energy function.Based on this,a set of nonlinear equations about the problem of compressed missile adapter is established and an... |
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| Keywords: | missile adapter axisymmetric plane strain finite deformation strain energy function friction |
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