摘要
本文从分析炸冲击波在障碍物上的反射开始，详细分析了结构物内部冲击波荷载的作用规律，给出了作用在具有球形顶壳的圆柱形建筑物侧壁和球形顶壳上的冲击波压力表达式，并通过经典弹性理论，假设结构材料是各项异性弹性材料，推导出了建筑物侧壁的轴向径向振动的计算表达式，计算得到了侧墙位移和内力曲线。计算表明：侧墙轴向位移最大，侧墙中间的某一位置径向位移和环向力 取得最大值，而侧墙下部弯矩 剪力 和法向内力 达到最大值。
Abstract
This thesis analyzed interaction pattern of internal blast load in structure in detail, beginning with reflection on barrier of explosion block wave. Formula of shock wave pressure on side wall and top shell of structure with sphere shell is provided. Formula of axial and radial vibration on side wall of structure with classical elastic theory is derivated, and displacement-inner force curve of side wall, simulating structure material as anisotropic is calculated. Calculation results indicate that, axial displacement at upside of side wall is maximum, radial displacement and ring force at middle of side wall are maximum, and moment shear normal force under side wall are maximum.
关键词
内爆炸 /
冲击波 /
动力响应 /
圆柱壳 /
解析解
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Key words
inner explosion /
shock wave /
dynamic response /
cylindrical shells /
analytical solution
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程志军;李杰;宋春明;王德荣.
特种结构物内爆炸动力响应分析[J]. 振动与冲击, 2013, 32(6): 96-99
Cheng Zhijun;Li Jie;Song Chunming;Luo Zhongxing.
Dynamic Response Analysis of Special StructureUnder Inner Explosion[J]. Journal of Vibration and Shock, 2013, 32(6): 96-99
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