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首页> 外文期刊>Indian Journal of Science and Technology >Design and Analysis of Vibration Test Bed Fixtures for Space Launch Vehicles
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Design and Analysis of Vibration Test Bed Fixtures for Space Launch Vehicles

机译:航天运载工具振动试验台夹具的设计与分析

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Space Launch Vehicles are subjected to rigor dynamic environment during lift-off and ascent phase of launch. The intense sound generated by the rocket propulsion system exerts significant acoustic pressure which induces vibrations. In addition, intense vibrations are generated by space propulsion engine ignitions, shut downs, sudden transient shocks generated by solid rocket motors and separation of stages. The vibration testing poses a challenge to design and realize good vibration test fixture. Launch vehicles have to undergo vibration testing prior to launch for its design qualification and flight acceptance. Vibration testing requires a fixture to interface the specimen and vibration generating equipment. This paper briefly describes the design criticalities, analysis and material considerations and structural dynamic modifications to ensure good vibration environment simulation to launch vehicle structures.
机译:太空运载火箭在发射升空和上升阶段要经受严酷的动态环境。火箭推进系统产生的强烈声音会施加很大的声压,从而引起振动。此外,太空推进发动机的点火,停机,固体火箭发动机产生的突然瞬态冲击以及级间分离都会产生强烈的振动。振动测试对设计和实现良好的振动测试夹具提出了挑战。运载火箭必须接受振动测试后才能进行设计鉴定和飞行验收。振动测试需要使用夹具将样品和振动产生设备连接起来。本文简要介绍了设计关键,分析和材料注意事项以及结构动态修改,以确保良好的振动环境仿真来发射车辆结构。

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