基于可靠性试验的飞机振动环境测试与数据处理

飞机振动响应采用计算手段确定存在较大的误差，为保证飞机机载产品可靠性试验的有效性，相关国、军标准推荐优先使用实测振动应力．为准确合理地确定可靠性振动应力，对某型号飞机进行了全机振动环境数据的实测、处理与归纳，提出了基于可靠性试验的环境数据处理方法．利用动压作回归参数，对实测数据进行归纳，得到了较高拟合优度的结果，有较强的工程适用性．

Reliability test-based measurement and data processing of aircraft vibration environment

There would be a bigger error of aircraft vibration response if the latter were determined by means of computation. In order to guarantee the validity of reliability test for aircraft vehicle-carried products, it is recommended by the national and military standards that practically measured vibrational stress is prior to be adopted. In order to accurately and reasonably stipulate a reliability vibration stress, practical measurement, processing, and induction of the data of full-aircraft vibration environment is conducted for a type of aircraft,so that a reliability test-based method for environmental data processing is presented. Taking the dynamic pressure as an induction parameter, the measured data is induced to that a result with higher fitting degree is obtained,which has a better engineering practicability.