碳陶双基体复合材料壳结构的振动分析

张大义; 洪杰; 任德新

碳陶双基体复合材料壳结构的振动分析

北京航空航天大学能源与动力工程学院,北京 100191

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出版历程
- 收稿日期: 2010-05-05
- 修回日期: 2010-06-05
- 刊出日期: 2011-05-28

Dynamical analysis on shell structure made of C/C-SiC composite materials

School of Jet Propulsion, Beijng University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对某碳陶双基体复合材料的冲压发动机燃烧室衬套结构,在缺少复合材料机械性能参数的情况下,提出一种振动分析的工程实用方法.建立了衬套结构的有限元模型,通过固有振动特性和随机载荷环境中的振动响应计算分析,对结构的动力学设计进行评估,为复合材料壳结构的振动分析以及冲压发动机中典型壳结构的动力学设计和评估提供参考.
- 复合材料 /
- 壳结构 /
- 振动 /
- 有限元分析 /
- 谱分析
Abstract: An effective engineering method was put forward to solve the dynamical problems of a ramjet combustion chamber liner made of C/C-SiC composite materials,in the absence of mechanical performance parameters of materials.The finite element model of liner was erected,and natural characteristics and vibration responses caused by random excitation were calculated.Then the design level was evaluated based on dynamical thesis.The study has a great reference value for vibration analysis on shell structure made of composite materials and dynamical design on shell structure used in ramjet.
- composite materials /
- shell structure /
- vibration /
- finite element analysis /
- spectrum analysis

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参考文献(13)

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