Frequency Design and Test Verification of CAST2000 Small Satellite Platform

Based on the necessity of frequency design and the configuration design of CAST2000 platform small satellite, the frequency of CAST2000 platform small satellite is designed, and the modal characteristics are analyzed. On this basis, the modal measurement test and vibration environment test are designed to verify the modal characteristics and response characteristics of the CAST2000 platform small satellite. From the verification results of frequency design, the first-order frequency of the satellite and the frequency of large components on the satellite have been reasonably allocated, which effectively solves the problems of frequency coupling between the satellite and the rocket and the frequency coupling between the large components on the satellite, effectively ensures that the satellite response is at a reasonable level, and plays an important role in the reliable on-orbit operation of the small satellite on the platform.