Method for designing free molded surface of rubber elastic element

The invention belongs to the field of rubber elastic element product design, provides a rubber elastic element free profile design method, and designs a free profile capable of realizing a preset deformation state under the action of a large load according to the profile bearing requirement of a rubber elastic element in combination with a reverse simulation analysis method. The free molded surface does not have wrinkles during large-bearing deformation; the device is suitable for products such as spherical hinges, rubber pads and conical springs. An existing design scheme is combined with a reverse simulation analysis method, finite element analysis is achieved, and the method is generally applicable to complex structures. The rubber deformation state can be effectively considered, and the geometric model after rubber body deformation is adjusted and established in time. By the adoption of the method, the free profile capable of achieving the preset deformation state under the large load effect can be rapidl