Stress and strain energy double-constraint topological optimization method based on variable density method
A technology of topology optimization and stress constraints, applied in the direction of constraint-based CAD, design optimization/simulation, special data processing applications, etc., can solve the problems that cannot meet the strength conditions, are not a priori, etc., and are conducive to later expansion and promotion , strong engineering applicability, and the effect of avoiding stress singularity
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[0051] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present invention and are not intended to limit the present invention.
[0052] Such as figure 1 As shown, the topology optimization method based on the stress and strain energy double constraints of the variable density method of the present invention comprises the following steps:
[0053] (1) On the basis of the variable density method, the relative density of each unit is used as the design variable to define the structural design space, acting load, and boundary conditions, and set the filter radius, structural strain energy constraint value, and stress constraint of the design variable value, the initial design space is divided into n finite elements, the structure volume is used as the optimization objective function, and the structural strain ener...
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