Acta Photonica Sinica, Volume. 45, Issue 2, 222001(2016)
Nonlinear Analysis of Preload of Pins in the Space Planar Mirror Assembly
The main contact sources and theory were introduced, and the reasonable finite element model was established. The nonlinear contact analysis method was used to analyze a small hammer (m=0.18 kg) with different height impacting pin, and the pressures applied to coneshape bores were obtained. Subsequently, the surface shape accuracy of the planar mirror was analyzed with both nonlinear and linear analysis methods. Then, the imaging experiment of the space plane mirror was carried out. The results of analysis and experiment indicate that the surface accuracy of nonlinear analysis is closer to experimental value than that of linear analysis, and the error of results between nonlinear analysis and experiment is 8.6%. Finally, one reasonable pin preload project of the space plane mirror assembly was proposed that small hammer maximum free fall height should not be larger than 25mm.
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LI Mengqing, ZHANG Lei, LI Zongxuan, XING Lina, JIA Xuezhi. Nonlinear Analysis of Preload of Pins in the Space Planar Mirror Assembly[J]. Acta Photonica Sinica, 2016, 45(2): 222001
Received: Aug. 24, 2015
Accepted: --
Published Online: Apr. 1, 2016
The Author Email: Mengqing LI (limengqing10000@163.com)