SIA OpenIR  > 工艺装备与智能机器人研究室
Alternative TitleGravity Unloading Precision Analysis of Air Bearing Facility
杨国永; 王洪光; 姜勇; 凌烈; 常勇; 高峰; 杨帆
Source Publication机械工程学报
Indexed ByEI ; CSCD
EI Accession number20192307004771
Contribution Rank1
Funding Organization国家自然科学基金资助项目(51535008)
Keyword重力卸载 气浮主轴 气足 重力卸载精度 气浮试验台


Other Abstract

A hierarchical and simultaneous gravity unloading facility is proposed. This facility is presented with air bearing to unload the gravity on the ground for testing the tracking and data relay satellite antenna pointing mechanism. The unloading method and the configuration are described and the running state is analyzed. The torque of two joints of antenna pointing mechanism is calculated by deriving the kinematics and dynamics models. The parameters which affect the gravity unloading precision are found: the force of the adjustable spring mechanism, the unbalance of the horizontal load, the deviation of concentricity, the viscous resistance of air bearing and level degree of granite platform. Those parameters are analyzed in detail with the influence on the gravity unloading precision. The theoretical unloading precision is derived by hierarchy analysis. The spring force and the unbalance of horizontal load are main parameters which reduce the precision, so those two parameters should be adjusted specially to improve the gravity unloading precision. The effectiveness of the gravity unloading method is proved with the test of the facility. The reduction of gravity unloading precision by those factors is got and the results match the analysis.

Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author杨国永
Recommended Citation
GB/T 7714
杨国永,王洪光,姜勇,等. 气浮试验台重力卸载精度分析[J]. 机械工程学报,2019,55(5):1-10.
APA 杨国永.,王洪光.,姜勇.,凌烈.,常勇.,...&杨帆.(2019).气浮试验台重力卸载精度分析.机械工程学报,55(5),1-10.
MLA 杨国永,et al."气浮试验台重力卸载精度分析".机械工程学报 55.5(2019):1-10.
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