Abstract:Aiming at the high resolution optical imaging load, a central cylinder with reinforced structure is designed based on the requirements of optical system and structural stability. Based on the structure and optical system requirements of the space remote sensor, the configuration scheme and material of the central cylinder main support structure are determined. According to the critical stress theory, the instability strength of the structure is calculated and analyzed. By optimizing the size, the basic frequency and position accuracy of the structure is optimized, and the camera can reduce weight greatly. The static and dynamic characteristics of the central cylinder main support structure are analyzed. The results of finite element analysis show that the structure meets the tolerance of optical system and has enough dynamic stiffness to resist vibration loads.