为了解决应变计测量法在试飞中对测量耙应力难以监控的问题,对自行设计的某型大尺寸进气道测量耙进行振动试验,建立测量耙振动与应力的相关性,实现利用测量耙振动信息监视分析测量耙应力的目的。通过扫频和定频试验,得到了相应的振动和应变试验数据。通过试验数据分析,得到了耙的固有频率,并根据各测点应变与振动的相关性初步建立了耙的振动与应力之间的关系方程,为后续试飞中测量耙安全监控提供一定试验基础和依据。 In order to solve the problem that the gauge measurement method is difficult to monitor the stress of the measuring rake during the flight test, the vibration test of a large-size intake measuring rake designed by ourselves is carried out to establish the correlation between the vibration and the stress of the measuring rake, Information monitoring analysis Measuring rake stress purposes. By swept frequency and fixed frequency test, the corresponding vibration and strain test data were obtained. Based on the experimental data, the natural frequency of the rake is obtained. Based on the correlation between strain and vibration at each measuring point, the equation of the rake vibration and stress is preliminarily established, which provides some experimental basis for the safety monitoring of the rake during subsequent flight test. in accordance with.