63results about How to "High degree of lightweight" patented technology

The invention provides a large and medium-sized part lightweight design method based on generative optimization and guide reconstruction. The method comprises the following steps of: establishing an original model, selecting a manufacturing material, performing stress and deformation analysis on the original model, judging whether the material selection is suitable or not, performing generative topological optimization on the original model, and screening a generative optimization design scheme according to an evaluation model; taking a traditional processing technology as a guide, performing reverse reconstruction on the generative optimal scheme model, performing stress and deformation analysis again, and checking strength and rigidity; and performing secondary or multi-time reconstruction on the reconstruction model which does not meet the design requirements until a result meeting the design requirements is obtained. According to the method, the limitation that topological optimization structure forming depends on additive manufacturing is broken through, the problem that it is difficult to widely apply the topological optimization technology under the influence of the limitation that the additive manufacturing technology is limited in forming size, high in machining failure risk, high in manufacturing cost and the like is solved, and the weight, the machining difficulty and the manufacturing cost of large and medium-sized parts are effectively reduced.