| 复杂载荷下复合材料组合壳体局部补强的数值分析 |
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| 引用本文： | 王斌,王路仙,侯晓,张元冲.复杂载荷下复合材料组合壳体局部补强的数值分析[J].固体火箭技术,2004,27(3):216-219. |
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| 作者姓名： | 王斌 王路仙 侯晓 张元冲 |
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| 作者单位： | 西安交通大学机械结构强度与振动国家重点实验室,西安,710049;中国航天科技集团公司四院设计部,西安,710025 |
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| 摘 要： | 分析某固体火箭发动机的复合材料组合壳体在轴压、外压及弯矩联合作用下的变形情况发现，该结构铺层设计不够合理，造成复合材料铺层变形不协调，导致结构过早破坏。通过数值模拟方法，对在复杂栽荷作用下结构复合材料局部铺层改变进行补强研究，提出相应的优化局部铺层补强的方案。计算结果表明，所提出的局部改变铺层的方法可以较大幅度地提高结构承载能力，为结构设计的改进提供参考。
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| 关 键 词： | 固体推进剂火箭发动机 复合材料组合壳体 失效 局部补强 |
| 文章编号： | 1006-2793(2004)03-0216-04 |
| 修稿时间： | 2003年9月22日 |
Numerical analysis of local reinforcement of composite case under complicated load |
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| WANG Bin,WANG Lu-xian,HOU Xiao,ZHANG Yuan-chong Xi'an Jiaotong University,Xi'an,China.Numerical analysis of local reinforcement of composite case under complicated load[J].Journal of Solid Rocket Technology,2004,27(3):216-219. |
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| Authors: | WANG Bin WANG Lu-xian HOU Xiao ZHANG Yuan-chong Xi'an Jiaotong University Xi'an China |
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| Institution: | WANG Bin~1,WANG Lu-xian~2,HOU Xiao~2,ZHANG Yuan-chong~1 Xi'an Jiaotong University,Xi'an710049,China, 2.The Design Department of the Fourth Academy of CASC,Xi'an710025,China |
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| Abstract: | The composite case of SRM was analyzed under the combined load condition, consisting of axis pressure, external pressure and bending moment. The analysis results show that the layer design of the case structure isn' t proper, causing bad distortion coordination which lead to structure failure. Therefore, the local reinforcement of structure under complicated loads is investigated via numerical simulation, and optimized scheme proposed. The result shows that load-bearing capability can be greatly improved. This method is available for improving the structure design. |
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| Keywords: | solid propellant rocket engine composite case failure local reinforcement |
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