Journal
MICROMACHINES
Volume 13, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/mi13010100
Keywords
expert system; fluid-structure interaction; design optimization; additive manufacturing; flow channel
Categories
Funding
- China Postdoctoral Science Foundation [2020M682173]
- Natural Science Foundation of Shandong Province [ZR2020QE166]
- National Natural Science Foundation of China [52175336]
- Shandong Research Institute of Industrial Technology
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By integrating expert system theory and fluid-structure interaction, an intelligent design optimization system is proposed to derive the optimal shape of flow channels. The system improves the accuracy of FSI simulation and the efficiency of the optimization process.
Based on expert system theory and fluid-structure interaction (FSI), this paper suggests an intelligent design optimization system to derive the optimal shape of both the fluid and solid domain of flow channels. A parametric modeling scheme of flow channels is developed by design for additive manufacturing (DfAM). By changing design parameters, a series of flow channel models can be obtained. According to the design characteristics, the system can intelligently allocate suitable computational models to compute the flow field of a specific model. The pressure-based normal stress is abstracted from the results and transmitted to the solid region by the fluid-structure (FS) interface to analyze the strength of the structure. The design space is obtained by investigating the simulation results with the metamodeling method, which is further applied for pursuing design objectives under constraints. Finally, the improved design is derived by gradient-based optimization. This system can improve the accuracy of the FSI simulation and the efficiency of the optimization process. The design optimization of a flow channel in a simplified hydraulic manifold is applied as the case study to validate the feasibility of the proposed system.
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