SIA OpenIR  > 智能产线与系统研究室
Alternative TitleThe Structural Optimization and Precision Analysis of 6-DOF Space Simulator
Thesis Advisor徐志刚
Keyword气浮法 六自由度航天模拟器 运动物理属性匹配 精度分析
Call NumberV216.8/W33/2014
Degree Discipline机械电子工程
Degree Name硕士
Degree Grantor中国科学院沈阳自动化研究所
Place of Conferral沈阳
Other AbstractGas flotation as a way to offset the effects of gravity, has been widely used in the aerospace simulator ground simulation experiments. Compared with liquid float, flexible cable suspension method, it has flexible configuration design, trajectory unlimited advantages. Lack of Freedom and not high simulation accuracy is important factors for further development of flotation space simulator. Difficult to achieve weightlessness vertical movement is the main reason for lack of freedom of the simulator, which is the key the 6-DOF Space Simulator distinguishes with the 5-DOF Space Simulator. Simulation accuracy is not high mainly includes two questions. The motion state of weightlessness simulation accuracy and the motion physical attributes matching accuracy.In response to these problems, this paper proposes a new flotation 6-DOF Space Simulator configuration. From the viewpoint of design and precision, the main study focus on 4 quertions. Precision vertical weightlessness movement simulation mode, configuration optimization and precision analysis of two-dimensional turntable,the precision way to match motion physical attributes and the overall movement accuracy of simulator.Firstly, studied the way to achieve high-precision vertical weightlessness movement, Considering the real-time and high precision, presents a method of weightlessness vertical movement which combines the principles of proportional weight and flotation techniques.By studying its implementation principle, noting that the conditions of its design and implementation.Through the study of flotation techniques to obtain the relationship between component size and flotation capacity.Carried out a detailed configuration design for a specific requirement of the simulator, and make a study of its simulation accuracy.Secondly,design the two dimensional turntable in the configuration requirements of high stiffness and low quality. Give the mathematical model based on its analysis of the pointing error error sources. Through analysis of a simulation of a two-dimensional turntable,get pointing errors affect on movement precision.It has reference values for the simulation accuracy analysis of the two dimensional turntable.Thirdly, The study on the precision way to match motion physical attributes, pointed out the seven equations conditions which need to meet, the design premise and match method. Through the analysis of inertia coupling, pointed out the matching simulation accuracy.Lastly,Established the space simulator’s error model based on the Many-body kinematics theory. Comparative ideal model, get the integrated simulation accuracy of this configuration design.
Contribution Rank1
Document Type学位论文
Recommended Citation
GB/T 7714
王昊. 六自由度航天模拟器优化设计与精度分析[D]. 沈阳. 中国科学院沈阳自动化研究所,2014.
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