Study on Dynamic Topology Optimization of Damping Alloys Based on Non-proportional Damping Modal Superposition
In response to the non-proportional damping characteristics of damping alloys in dynamic topology op-timization,this study developed an iterative modal superposition algorithm based on undamped eigenvectors,coupled with the method of moving asymptotes.A novel dynamic topology optimization model incorporating non-proportional damping features for damping alloys was thus constructed.The case analysis demonstrates that this model,which considers non-proportional damping characteristics,outperforms traditional proportional damping-based topology optimization methods in optimizing the shape and layout of damping alloys.The findings of this study provide valuable insights and reference for the design of shape and layout in the application of similar damping alloys,highlighting the model's enhanced effectiveness in shape and layout optimization.
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