Research Unit II, Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Research Unit II, Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Research Unit II, Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Research Unit II, Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Research Unit II, Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA)
Technologies for enhancing the dimensional stability of satellite structures are important for realizing advanced observation satellites in the future. Low thermal expansion materials and low hygroscopic materials are applied to achieve high dimensional stability in the satellite structures. It is of practical importance to not only optimize the selection of materials but also to evaluate the dimensional stability of the structures with high accuracy at the assembly level. Moreover, it is possible to obtain valuable data leading to improvements in analysis and design accuracy by evaluating dimensional stability not only in ground tests but also on orbit. In addition, a virtually non-deformed structure may be realized by monitoring its deformation behavior in real time and actively correcting the displacement. In this paper, we propose a measurement technique using a compact laser interferometric displacement sensor that was built into the structure. We also developed an actuator for on-orbit active displacement control of a satellite structure with high load capacity that can be launched without a launch-lock mechanism. The measurement technique and actuator were applied to the truss element to verify the active displacement control structure, which represents the ultimate zero deformation structure. This paper presents the prototype of our active truss and its performance.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
高安定構造のための高精度変位計測技術及び変位補正技術の研究
AA1830032000.pdf
(34.62MB)
