Research on the position of the neutral surface of the space lightweight mirror with a two-axis bipod flexible mount.

This study offers a theoretical solution for the neutral surface position of a space lightweight mirror employing two-axis bipod flexible mounts (TABFM) evenly distributed at three locations along the circumference. To maximize the surface shape accuracy of the mirror (SSAM) under the influence of radial gravity, it is typically necessary that the center of rotation of the TABFM coincides with the position of the neutral surface of the mirror (PNSM). Departing from the PNSM, the SSAM will be substantially deteriorated.