Volume 43 Issue 1
Jan.  2022
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Ruisong JIANG, Mengbo XU, Fan ZHANG, Weipeng HU, Zichen DENG. Structure-Preserving Layout Optimization of Precision Devices in Spacecraft[J]. Applied Mathematics and Mechanics, 2022, 43(1): 26-33. doi: 10.21656/1000-0887.420095
Citation: Ruisong JIANG, Mengbo XU, Fan ZHANG, Weipeng HU, Zichen DENG. Structure-Preserving Layout Optimization of Precision Devices in Spacecraft[J]. Applied Mathematics and Mechanics, 2022, 43(1): 26-33. doi: 10.21656/1000-0887.420095

Structure-Preserving Layout Optimization of Precision Devices in Spacecraft

doi: 10.21656/1000-0887.420095
  • Received Date: 2021-04-14
  • Rev Recd Date: 2021-06-03
  • Available Online: 2021-12-08
  • Publish Date: 2022-01-01
  • The stability and the accuracy of the precision devices installed in spacecraft depend on the local vibration characteristics of the spacecraft. In return, the local vibration characteristics of the spacecraft are influenced by the layout of the precision devices, which implies that, a rational layout of the precision devices in the spacecraft is the precondition for the stable and efficient work of the precision devices. The dynamic model for a flexible panel bearing several precision devices was presented and the structure-preserving method was developed to investigate the local vibration characteristics of the panel. In view of the sizes of the precision devices and the heat dissipation clearances between the precision devices, the layout optimization for the precision devices was performed to minimize the weighted values of the out-of-plane vibration accelerations of the precision devices. The optimization results show that, benefiting from the excellent structure-preserving properties of the numerical method employed during the vibration analysis, the weighted values of the out-of-plane vibration accelerations of the precision devices decrease by about 88.05% through the layout optimization, which provides a useful guide for the layout scheme of the precision devices in the spacecraft and improves the stability of the precision devices.

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