WITHDRAWN: Research on interface structure integration of on-orbit maintainable optical load

Abstract

Abstract In this paper, an integrated interface of mechanical positioning and locking based on the principle of kinematic installation is studied, which is suitable for the on orbit replaceable space optical load. The interface not only can meet the optical load withstand the huge impact of rocket launch, realize the gravity release on orbit. It can also cope with the huge temperature difference in the space environment, complete the on-orbit thermal stress release, and ensure the stability and accuracy of the optical load focal plane. The mathematical model of the theoretical rotation angle is derived according to the distribution of the interface, and the error is analyzed in detail. A micro-gravity experimental platform was built to verify the repeated positioning accuracy of the optical load. The experimental results and theoretical results have a high degree of consistency, with an error of less than 12%. Both the fundamental frequency of the finite element simulation of the optical load and the experimental fundamental frequency meet the mechanical environment of the rocket launch. When the optical load needs to be repaired, the interface can help the astronauts to quickly replace and reset accurately. This research provides reference for the on-orbit maintenance interface of other space loads.