摘要: |
力热振联合试验是对全尺寸高速飞行器尾翼在加热、振动环境下进行静力加载的力学环境模拟试验,涉及多环境联合加载试验技术,其中静力加载是关键性的技术难题。本文根据热振联合试验环境特点,从柔性静力加载、载荷施加策略、静力及力矩平衡、静动耦合消除、加载控制技术、试验安全保护等方面,探讨了力热振联合试验中的静力加载技术,设计实现了静力加载系统,并成功应用于某大型力热振联合试验任务,该技术进一步拓展了多环境联合试验技术领域,可为此类尾翼联合环境试验提供更真实的试验技术平台。 |
关键词: 垂直尾翼;联合试验环境;试验系统;柔性静力加载;试验 |
基金项目: |
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Study of Static Loading Technology in Force-thermal-vibration Test |
Zhang Li Li Liyuan Hu Youhong Xiao Naifeng Ma Xingbo
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Beijing Institute of Structure and Environment Engineering, Beijing 100076
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Abstract: |
Force-thermal-vibration joint test is for full size high-speed aircraft wing under the environment of thermal-vibration mechanics environmental simulation of static loading test. It involves the technology of multi-environment combined loading test, in which the static loading is a key technical problem. In this paper, according to the characteristics of thermal-vibration joint test environment, from applying strategy based on the flexible static loading, the static force and moment balance, elimination for static-dynamic coupling, loading control technology, test security protection, etc., discussed static loading technique under force-thermal-vibration joint test environment. The static loading system has been developed, and successfully applied to a large force-thermal-vibration joint test task. This technology further expands the field of multi-environment joint test technology, and provides a more real test technology platform for this kind of tail wing combined environmental test. |
Key words: vertical tail;joint test environment;test system;flexible static loading;test |