Metal rubber optimal design and performance prediction method

Abstract

Provided is a metal rubber optimal design and performance prediction method. Firstly, a work blank geometric model is built according to a planning result of the laying track of a metal rubber work blank; then the deformation problem of all coil discrete units is solved according to a meshless numerical analysis method, a dynamic numerical calculation model is built according to the boundary constraint of the metal rubber work blank in a stamping die and the constraint condition between internal contact coils, and an organization structure of a metal rubber finished product after press forming is reconstructed through the output of the dynamic numerical calculation model; the organization structure of the metal rubber finished product is simplified, and a phenomenological analysis model is extracted; finally, the optimal design and performance prediction of the metal rubber are achieved through the built dynamic numerical calculation model and the built phenomenological analysis model. The metal rubber optimal design and performance prediction method breaks through the technical bottleneck of building of a metal rubber complex space mesh structure feature extracting and mechanical analysis model with the universality, and achieves the aims of the metal rubber optimal design and performance prediction based on a numerical simulation technology.

Description

technical field [0001] The invention relates to a metal rubber optimization design and performance prediction method based on numerical simulation technology, belonging to the technical field of metal processing. Background technique [0002] Metal rubber (Matal Rubber / Wire Mesh) is a new type of high elasticity and large damping material invented by scientists in the process of exploring to overcome the shortcomings of ordinary rubber in recent years. It uses metal wire as raw material, and is manufactured through metal wire spiral forming, spiral winding with fixed pitch stretching, blank winding, cold stamping, heat treatment and annealing, etc. The space network structure has excellent physical and mechanical properties such as high / low temperature resistance, acid corrosion, oil pollution, strong radiation, etc. Key materials urgently needed in the field of national defense high technology. [0003] The internal helical turns of the metal rubber blank are connected to...

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Problems solved by technology

[0003] The internal helical turns of the metal rubber blank are connected to each other to form a complex discontinuous organizational structure, and nonlinear deformation will occur during the stamping process, so as to accurately describe the characteristics of the spatial network structure formed by the contact and connection of the internal turns of the metal rubber, And the establishment of a mechanical analysis model for the relationship between this structural feature and the preparation process parameters has brought great difficulties

Based on the above reasons, so far, people still have not found a feasible method for the optimal design of metal rubber, nor can they accurately predict the performance of metal rubber.

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