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Efficient reliability-based concurrent topology optimization method under PID-driven sequential decoupling framework
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DOI：10.1016/j.tws.2024.112117.png)
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摘要
En 中文
The continuous improvement of advanced equipment performance has promoted the development of detailed structural design. The detailed design of the structure should meet many requirements such as high reliability, strong robustness, lightweight, and high efficiency. This paper proposes a proportional-integral-derivative-driven efficient reliability-based concurrent topology optimization strategy under the sequential framework. Considering the uncertainty of load position, load direction, load amplitude, and material properties, an efficient reliability-based concurrent topology optimization model is constructed based on the sequential strategy. Based on effectively quantifying the nonlinear characteristics brought by multi-source uncertainty, a constraint refinement movement strategy based on the proportional-integral-derivative controller is proposed, which to some extent overcomes the tedious calculation of uncertainty quantification. This paper provides sensitivity information on macroscopic and microscopic level set functions under displacement constraints. Four numerical examples demonstrate the effectiveness, efficiency, and generalization ability of the proposed method.
Keyword:
Reliability -based topology optimization
Sequential optimization
Multi -source uncertainties
Proportional -integral -derivative
Parameterized level set method
期刊
T
IF:
6.6
论文数:
1.1W
被引数:
4.0W
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