Design and verification of space shutter mechanism
Zixuan Yang, Chuang Li, Bin Hu, Zeyuan Yin, Yan-Bing Cai · Journal of Physics Conference Series · 2025
Abstract We proposed and realized a rotary-type shutter mechanism with a single leaf to maintain the high reliability and long life of a space camera. First, the shutter mechanism was designed. Then, we completed the analyses of modality, static moment margin, and locking moment using the optimum configuration. From the simulation results, the first-order natural frequency of the shutter mechanism is 404 Hz after optimization with a mass of only 3.6 kg. Finally, the ground mechanical environment tests and vacuum life test were completed. The test results showed that the error between the fundamental frequency and the first-order natural frequency was within 5%, which verified the accuracy of the finite element calculation model. This mechanism also passed the test of sine vibration, random vibration, and life test.