力热振联合试验静力加载技术研究

Study of Static Loading Technology in Force-thermal-vibration Test

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。

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.