CAE study on dynamic environments of the off-axis TMA Multi-spectral Remote Sensor

In order to assess dynamic characteristic of the off-axis TMA Multi-spectral Remote Sensor, CAE technology is used to analysis the remote sensor' dynamic stiffness and dynamic response. A dynamic model of remote sensor is established, the natural frequency of remote sensor is solved. The stress and acceleration responses of the remote sensor in the environment perturbations (low-frequency sine sweep vibration, random vibration and other conditions) are analyzed. The numerical analysis results show that, the multi-spectral remote sensor has high dynamic stiffness, which ensure remote sensor the capability to resist interference in the space mechanics environmental conditions. The remote sensor design is feasible. Practice shows that the application of CAE technology and finite element analysis on space remote sensors for dynamic simulation analysis, can validate the strength and stiffness rationality of space remote sensor design, indicate remote sensor's response to the dynamic environment, and guide the dynamic environment test effectively.