Open AccessAnalysis on calculating process of mechanical precision of devices on satellite
Author(s) -
Bijie Xue,
Lei Zhang,
Hao Zhong,
Fa Jing
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/772/1/012069
Subject(s) - satellite , computer science , process (computing) , orientation (vector space) , position (finance) , accuracy and precision , work (physics) , mechanical engineering , engineering , aerospace engineering , mathematics , statistics , geometry , finance , economics , operating system
With the gradual complication of the devices on satellite, the mechanical precision of some devices with accuracy requirements on satellite should be predicted after the assembly, in order to conduct the previous design of devices and accuracy assignment of satellite. This paper will discuss main factors which influence the mechanical precision of devices, process design and calculating method. And the position and orientation matrix is used to analyse the influence of error at each stage on mechanical precision of devices after installation. One thruster on satellite is chosen as an example to specify the calculating process and feasibility of this calculating method. This paper proves that the satellite structure assembly has a small impact on mechanical precision. The control method of mechanical precision is put forward at design stage and assembly stage of satellite, and the mechanical precision and error distribution method of devices on satellite is predicted through position and orientation matrix at previous work stage.