Decoupling and Partial Iterative Calculation Method of Flexibility Dynamics

Authors

Xianzhong Wang, 1. Shanghai Rey Laboratory of Aerospace Intelligent Control Technology, Shanghai 200233, China; ;2. Shanghai Aerospace Control Technology Institute, Shanghai 200233, China;
Minlan Tang, 1. Shanghai Rey Laboratory of Aerospace Intelligent Control Technology, Shanghai 200233, China; ;2. Shanghai Aerospace Control Technology Institute, Shanghai 200233, China;
Jinfang Dong, 1. Shanghai Rey Laboratory of Aerospace Intelligent Control Technology, Shanghai 200233, China; ;2. Shanghai Aerospace Control Technology Institute, Shanghai 200233, China;

Abstract

Abstract: Some spacecrafts have large solar panels and a lot of propellant. These spacecrafts with flexible modes can reach hundreds of order. High-powered computers are needed for these spacecrafts,flexibility dynamics iterative operation within several milliseconds. The measures of decoupling flexibility vibration from body rotation and partial iterative calculation were applied to avoid no convergence of the flexibility dynamics iterative operation because of iterative computing error. The parameters of flexible dynamics model which were decoupled could be calculated off-line. The amount of calculation was decreased for the decoupled flexibility dynamics model as parameters could be computed before simulation. The method doesn't need high-powered computer and is applicable to engineering application. The simulation result validates the decoupling and the iterative operation. The calculation speed can be improved by about two orders of magnitude.

Recommended Citation

Wang, Xianzhong; Tang, Minlan; and Dong, Jinfang (2021) "Decoupling and Partial Iterative Calculation Method of Flexibility Dynamics," Journal of System Simulation: Vol. 27: Iss. 6, Article 7.
DOI: 10.16182/j.cnki.joss.2015.06.007
Available at: https://dc-china-simulation.researchcommons.org/journal/vol27/iss6/7

First Page

1204

Revised Date

2014-08-21

DOI Link

https://doi.org/10.16182/j.cnki.joss.2015.06.007

Last Page

1208

CLC

TP391.9

Recommended Citation

Wang Xianzhong, Tang Minlan, Dong Jinfang. Decoupling and Partial Iterative Calculation Method of Flexibility Dynamics[J]. Journal of System Simulation, 2015, 27(6): 1204-1208.

DOI

10.16182/j.cnki.joss.2015.06.007