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对铝合金航天结构件受载情况下端框铆接缝隙变化测量进行研究,搭载静力试验模拟航天器飞行过程中的典型最严酷的载荷环境,采用三维数字相关技术进行测试某铆接界面缝隙变形情况,并将三维数字相关技术测量数据与塞尺进行对比,试验数据表明:三维数字相关技术用于缝隙测量,精度高,且测量可实现实时监测。
In the case of aluminum alloy aerospace structure, the measurement of the change of riveting gap in the end frame was studied. The static load was simulated by the static test to simulate the typical harsh loading environment during spacecraft flight. The deformation of a certain riveted interface was tested by 3D digital correlation technique. Compared with the three-dimensional digital correlation measurement data and feeler gauge, the experimental data show that: three-dimensional digital correlation technology for measuring the gap, high precision, and measurement can be real-time monitoring.