Abstract:
The basic approaches of coupled load analysis (CLA) at home and abroad were briefly reviewed in this paper. Then, taking China’s DFH series communication satellites as an example, some recent progresses in the field of CLA in China was introduced, including the secondary condensation method to reduce finite element model of satellite, and the influence of liquid sloshing on the result of CLA. The differences in the determination of satellite notched sine vibration specifications based on the result of CLA was compared between domestic and foreign practices. Finally, the issues regarding the accuracy and sensitivity of CLA were discussed, with several development suggestions for future research of CLA.