Satellite support type structure design method based on topological optimization and dot matrix filling

The invention discloses a satellite support type structure design method based on topological optimization and dot matrix filling, and belongs to the field of satellite effective load supporting structure design. Firstly, an initial model is established, and finite element mesh generation is carried out on the initial model to obtain a finite element model; secondly, dividing the finite element model into a designable domain and a non-designable domain, and performing macroscopic topological optimization design on the designable domain to obtain a topological optimization configuration; thirdly, geometric repair is conducted on the topological optimization configuration, fuzzy boundaries in the topological configuration are reduced, and manufacturability of the designed support is improved. And finally, performing mesoscopic lattice filling on the geometric repair configuration of the satellite support. On the basis that the high stability of the support type structure is guaranteed, the structural mass can b