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根据民用飞机发动机吊挂部段静力试验技术需求,研制了一套用于吊挂部段静力试验的试验系统,解决了吊挂支持模拟、加载边界模拟等关键技术;采用载荷偏移与力偶施加相结合的方法施加力矩;设计了加载杠杆施加试验小载荷。顺利完成了吊挂应急着陆、航向侧移相关的三种危险工况试验。试验结果表明,试验系统工作稳定可靠,吊挂在应急着陆等工况下未发生有害塑性变形,其强度、刚度满足设计要求。试验结果可作为该吊挂部段强度、刚度性能的评定依据,同时为有限元建模提供数据支持。
According to the requirements of static test technology of civil aircraft engine suspension section, a set of test system for the static test of suspension section was developed to solve the key technologies such as suspension support simulation and loading boundary simulation. Combining load offset and force couple Method to apply torque; designed to load the lever to exert the test small load. Successful completion of the suspension landing emergency, navigation-related three hazardous conditions test. The test results show that the test system works stably and reliably, and no harmful plastic deformation occurs under the conditions of emergency landing and so on. Its strength and rigidity meet the design requirements. The test results can be used as the basis for evaluating the strength and stiffness of the suspended section, and provide data support for the finite element modeling.