Abstract: As focal length significantly affects the performance of a telescope, the performance of spatial telescopes in astrophysical missions is mainly limited by the launchers’ capabilities. An appealing solution is a deployable ...

Abstract: This paper puts forward a linear variable stiffness joint (VSJ) based on the electromagnetic principle. The VSJ is constituted by an annular permanent magnet (PM) and coaxial cylindrical coil. The output force and stiffness ...