Equivalent dead load acquisition method, topological optimization method and system
An acquisition method and topology optimization technology, which is applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problems that the equivalent static load cannot accurately reflect the stress of the topology, and the stress of the topology structure is not considered.
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Embodiment 1
[0037] like Image 6 As shown, a method for obtaining an equivalent static load is disclosed in this embodiment, which includes the following steps:
[0038] Construct the solid model of the topology according to the actual engineering, and apply the moving load and self-weight load to the solid model to obtain the finite element model of the topology; solve the displacement field of the topology under the action of the moving load according to the finite element model; construct the equivalent static load and its generation Based on the principle that the displacement field generated by the equivalent static load at each moment is the same as the displacement field generated by the moving load at the same moment, the displacement field of the topology under the action of the moving load is substituted into the correlation equation, and the solution is obtained The equivalent static load of the topology.
[0039] In addition, in this embodiment, a topology optimization method...
Embodiment 2
[0045] Embodiment 2 is a preferred embodiment of Embodiment 1, and its difference from Embodiment 1 lies in that the specific steps of the topology optimization method are refined:
[0046] Such as figure 1 As shown, in this embodiment, a topology optimization method based on the equivalent static load method and the weighted strain energy method, considering the moving load effect and the self-weight effect is disclosed, including the following steps:
[0047] 1. Construct a topological solid model according to the actual project, and apply moving load and self-weight load to the solid model to obtain a topological finite element model;
[0048] Among them, the moving load is applied to the solid model as follows:
[0049] The two-way loading method proposed by the present invention handles moving loads, and regards the action of moving loads in two opposite directions as two mutually independent processes in one loading process. That is to say Represents a loading proces...
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