TY - GEN
T1 - Thermal Response of a Truss Antenna Considering Friction Joints Using Improved HHT-α Method
AU - Hua, Yuntao
AU - Ma, Wenlai
AU - Cui, Hutao
AU - Zhao, Yang
AU - Shen, Yingyong
AU - Fu, Xiaoyi
AU - Yao, Huaibo
AU - Qian, Changzheng
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Large ring truss antennas on satellites are exposed to a temperature environment while in orbit. Due to transient variations in the external heat flow, adjustments to the attitude of the satellite, changes in orbital positions, and interactive shielding effects between components, this thermal environment changes over time. Because of the temperature gradient and disparity in thermal expansion coefficients across the materials, the components in contact with the articulated head and connecting beam of the ring truss antenna would experience various degrees of thermal strain in this transient thermal condition. The nonlinear joint head in particular would easily experience a thermally induced stick-slip phenomenon due to the friction factor, thermal stress accumulation, and thermal deformation mismatch. An improved HHT-\alpha method is suggested to deal with this thermal-dynamic response, and the findings are contrasted with those obtained using finite element analysis software. In comparison to calculations made using the implicit direct integration method of finite element software, the findings demonstrate that the method is suitable for solving the joint friction model of the Rising static friction model with a temperature-dependent friction coefficient.
AB - Large ring truss antennas on satellites are exposed to a temperature environment while in orbit. Due to transient variations in the external heat flow, adjustments to the attitude of the satellite, changes in orbital positions, and interactive shielding effects between components, this thermal environment changes over time. Because of the temperature gradient and disparity in thermal expansion coefficients across the materials, the components in contact with the articulated head and connecting beam of the ring truss antenna would experience various degrees of thermal strain in this transient thermal condition. The nonlinear joint head in particular would easily experience a thermally induced stick-slip phenomenon due to the friction factor, thermal stress accumulation, and thermal deformation mismatch. An improved HHT-\alpha method is suggested to deal with this thermal-dynamic response, and the findings are contrasted with those obtained using finite element analysis software. In comparison to calculations made using the implicit direct integration method of finite element software, the findings demonstrate that the method is suitable for solving the joint friction model of the Rising static friction model with a temperature-dependent friction coefficient.
KW - improved HHT-α method
KW - joint friction model
KW - ring truss antenna
KW - thermally induced stick-slip
UR - https://www.scopus.com/pages/publications/85186746677
U2 - 10.1109/ICMAE59650.2023.10424623
DO - 10.1109/ICMAE59650.2023.10424623
M3 - 会议稿件
AN - SCOPUS:85186746677
T3 - 2023 14th International Conference on Mechanical and Aerospace Engineering, ICMAE 2023
SP - 518
EP - 523
BT - 2023 14th International Conference on Mechanical and Aerospace Engineering, ICMAE 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Conference on Mechanical and Aerospace Engineering, ICMAE 2023
Y2 - 18 July 2023 through 21 July 2023
ER -