Extracting Design Knowledge from Optimization Data

Enhancing Engineering Design in Fluid Based Thermal Management Systems

LEFT: Fig. 8 Compare different methods for single split cases with 3 CPHXs. The accuracy of these methods are shown in Table 3. Here, the boundaries illustrate how each classification method assigns data to its corresponding label. // RIGHT: Fig. 18 Automated division of complex graphs into subgraphs and estimation of optimal designs using trained models


Extracting Design Knowledge from Optimization Data: Enhancing Engineering Design in Fluid Based Thermal Management Systems

Saeid Bayat, Nastaran Shahmansouri, Satya RT Peddada, Alex Tessier, Adrian Butscher, James T Allison

As mechanical systems become more complex and technological advances accelerate, the traditional reliance on heritage designs for engineering endeavors is being diminished in its effectiveness. Considering the dynamic nature of the design industry where new challenges are continually emerging, alternative sources of knowledge need to be sought to guide future design efforts. One promising avenue lies in the analysis of design optimization data, which has the potential to offer valuable insights and overcome the limitations of heritage designs. This paper presents a step toward extracting knowledge from optimization data in multi-split fluid-based thermal management systems using different classification machine learning methods, so that designers can use it to guide decisions in future design efforts. This approach offers several advantages over traditional design heritage methods, including applicability in cases where there is no design heritage and the ability to derive optimal designs. We showcase our framework through four case studies with varying levels of complexity. These studies demonstrate its effectiveness in enhancing the design of complex thermal management systems. Our results show that the knowledge extracted from the configuration design optimization data provides a good basis for more general design of complex thermal management systems. It is shown that the objective value of the estimated optimal configuration closely approximates the true optimal configuration with less than 1 percent error, achieved using basic features based on the system heat loads without involving the corresponding optimal open loop control (OLOC) features. This eliminates the need to solve the OLOC problem, leading to reduced computation costs.

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Associated Researchers

Saeid Bayat

University of Illinois at Urbana-Champaign

Satya RT Peddada

University of Illinois at Urbana-Champaign

James T. Allison

University of Illinois at Urbana-Champaign

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