Improved Bidirectional Progressive Method Equivalent Static Load Method Dynamic Response Topology Optimization Method
An equivalent static load and topology optimization technology, applied in design optimization/simulation, special data processing applications, constraint-based CAD, etc., can solve problems such as complex optimization process and long cycle time
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[0065] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0066] The present invention provides an improved two-way progressive method equivalent static load method dynamic response topology optimization method, which applies the improved BESO method to the equivalent static load method as an optimization iterative method, replaces the original variable density method, and establishes a new method The convergence condition of , thus improving the dynamic response topology optimization process.
[0067] The improved BESO method is specifically as follows,
[0068] Before processing the unit, the single-step target volume V of each iteration should be given in advance k+1 ;Initial volume V k The volume constraint V* is larger or smaller than the whole; therefore, the volume evolution iteration can be expressed as:
[0069] V k+1 =V k (1±ER), (k=1,2,3...) formula (1)
[0070] In formula (1), ...
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