Design and analysis of radial support for a large-aperture rotating mirror

Effective support ways can contribute to the good performance of a large-scale optical system. An adjustable three-segment surface-contact radial support way is proposed to facilitate the movement process of a large-scale rotating mirror. Under a most dangerous working condition, the supporting angle is optimized by a two-step optimization method, which makes the maximum PV value reduce by 10.26% relative to that before optimization and that the maximum von Mises stress has a very little increase. Moreover, the coupling analysis of thermal stress in the rotating mirror caused by some thermal factors, such as motor heat, is carried out to validate the assembly design. The supporting way, as an effective radial mounting for dynamic optical elements, can be valuable for the reference of similar opto-mechanical design.