Open AccessResearch on the simulation technology of the combined effects of transient thermal shock and a triaxial 6-DOF
Author(s) -
Zemin Yao,
Xiaochao Huang,
Shouqing Huang,
Shouwen Liu
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1633/1/012068
Subject(s) - transient (computer programming) , finite element method , workbench , mechanics , coupling (piping) , shock (circulatory) , random vibration , vibration , thermal shock , structural engineering , stress (linguistics) , spacecraft , thermal , engineering , materials science , physics , mechanical engineering , aerospace engineering , computer science , acoustics , meteorology , medicine , linguistics , philosophy , composite material , visualization , operating system
During the reentry of a spacecraft, it will encounter extreme environment of transient thermal shock and a triaxial 6-DOF. Currently, there is a lack of experimental verification means. Taking a second power supply as an example, the finite element simulation model is established, and the model is verified by the heat balance test and random vibration modal test. The thermal response distribution of rapid temperature change, low-temperature holding and high-temperature holding phrases is obtained through the transient thermal shock simulation; Based on the multi-stress simulation of the workbench, the stress-strain response distribution under the triaxial 6-DOF random vibration is obtained. According to the principle of stress coupling, the thermal response distribution matrix and stress-strain response distribution matrix are applied to the finite element model of electronic products at the same time, and then the transient thermal shock and the triaxial 6-DOF coupling simulation is realized, which provides a theoretical guidance for test verification of the extreme environment during the reentry of a spacecraft.