Calibration of camera vignettingsurface on LED displayscreen

	Calibration of camera vignettingsurface on LED displayscreen
	Tian, Z.-H.; J. Miao; X.-Y. Mao and H.-B. Cheng
	2016
发表期刊	Faguang Xuebao/Chinese Journal of Luminescence
卷号	37 期号:8
摘要	The stiffness characteristics of fixation mechanisms of a space robotic arm show nonlinear, and it should be processed in linearity by equivalence method in the dynamic analysis on the whole-system. A method based on six-dimensional stiffness equivalence for linearizing fixation mechanisms was proposed and related analysis and tests were performed as well. A nonlinear model of a single preloaded fixation mechanism was created and corresponding stiffness information of the fixation mechanism was acquired through nonlinear analyses. Then the above information was offered to BUSH elements to simulate the fixation mechanism. The modal analysis and frequency response of whole model for the robotic arm was carried out. The results indicate that the first three natural frequencies of the whole system are 89 Hz, 92 Hz, 96 Hz and the maximum relative error between analysis results and test results is 3%. Moreover, the frequency response analysis results of different components are consistent with that of the test results and maximum relative error is 8%, which verify the effectiveness of the above method. The method takes the coupling of stiffness in different directions into account and avoids processing the contact surfaces of the fixation mechanisms one by one, showing a stronger practical engineering value. 2016, Chinese Academy of Sciences. All right reserved.
文章类型	期刊
收录类别	EI
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/57214
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Tian, Z.-H.,J. Miao,X.-Y. Mao and H.-B. Cheng. Calibration of camera vignettingsurface on LED displayscreen[J]. Faguang Xuebao/Chinese Journal of Luminescence,2016,37(8).
APA	Tian, Z.-H.,J. Miao,&X.-Y. Mao and H.-B. Cheng.(2016).Calibration of camera vignettingsurface on LED displayscreen.Faguang Xuebao/Chinese Journal of Luminescence,37(8).
MLA	Tian, Z.-H.,et al."Calibration of camera vignettingsurface on LED displayscreen".Faguang Xuebao/Chinese Journal of Luminescence 37.8(2016).

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