关键词: 反射面天线, 面板装配, 重力, 预紧力, 装配顺序

Abstract: To ensure the surface accuracy of large reflector antenna and control the error of reflector panel assembly,a simulation control method for panel assembly deformation was proposed.From the perspective of assembly process,the simulation model of antenna assembly based on “element birth-death method” was established.By considering the influence of assembly sequence,pre-tightenning force and gravity on panel assembly,the dynamic simulation for reflector panel assembly deformation was carried out.The real time assembly deformation of each panel and its assembly error were calculated,and assembly sequence and pre-tightening force were optimized.A finite element model of 9 m reflector antenna was created and the assembly process of its reflector was simulated.The simulation demonstrated that the model was accuracy and the simulation method was reasonable.

Key words: reflector antenna, reflector panel assembly, gravity, pre-tightening force, assembly sequence