Simulation Calculation Method and Test Verification of the Axial Connection Stiffness of the Clamp Band Device

摘要

The clamp band device (CBD) is used to connect satellite and launch vehicle. The axial connection stiffness of the CBD is an important factor affecting the vibration response of the satellite. Nonlinear contact characteristics between CBD, satellite and launch vehicle can't be considered in the analytical calculation of axial connection stiffness. In order to solve this problem, a simulation calculation method for the axial connection stiffness of the CBD is proposed in this paper. Not only the nonlinear contact characteristics due to different material contacts, but also the nonlinear contact characteristics due to the axial load are all considered in this method. Axial connection stiffness test of the CBD is carried out to verify the correctness of the method. The test results show that the maximum deviation of the simulation calculation result is less than 5%. This method can be used as a method for calculating the axial connection stiffness of the CBD.