Optimization design method of super-size carbon fiber main bearing structure

An optimization design method based on the combination topology optimization and DOE experimental design is proposed. The relationship among weight, stiffness and deformation of key components of the balanced main bearing structure is continuously optimized by comprehensive optimization method. Through a large number of examples to complete the search for the optimal solution, and then to achieve the main bearing structure stiffness, stability and weight optimal solution design. The design results show that the optimization design method based on the combination of topology optimization and DOE experimental design can greatly improve the design efficiency and completion quantity. The specific product designed by this method has been applied to the main bearing structure of an optical remote sensor. The bearing structure size reaches 3m, the load capacity is 700kg, and the weight is less than 110kg, which has good stability. This design method can be extended to other large size, small weight requirements and high stability structural parts design process, and has to wider application prospect.