Large Scale Multi-Disciplinary Optimization and Long-Term Drive Cycle Simulation

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Event
WCX SAE World Congress Experience
Authors Abstract
Content
Market demands for increased fuel economy and reduced emissions are placing higher aerodynamic and thermal analysis demands on vehicle designers and engineers. These analyses are usually carried out by different engineering groups in different parts of the design cycle. Design changes required to improve vehicle aerodynamics often come at the price of part thermal performance and vice versa. These design changes are frequently a fix for performance issues at a single performance point such as peak power, peak torque, or highway cruise. In this paper, the motivation for a holistic approach in the form of multi-disciplinary optimization (MDO) early in the design process is presented. Using a Response-surface Informed Transient Thermal Model (RITThM) a vehicle's thermal performance through a drive cycle is predicted and correlated to physical testing for validation. Furthermore, an MDO using RITThM is demonstrated with tradeoffs and important trends identified and described along with optimal design points. Potential sources of error, areas for improvement, and potential applications of an MDO using RITThM are presented.
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DOI
https://doi.org/10.4271/2020-01-1049
Pages
25
Citation
Malinovskiy, M., Hermetet, A., Kaushik, S., and Lee, C., "Large Scale Multi-Disciplinary Optimization and Long-Term Drive Cycle Simulation," SAE Int. J. Adv. & Curr. Prac. in Mobility 2(5):2784-2808, 2020, https://doi.org/10.4271/2020-01-1049.
Additional Details
Publisher
Published
Apr 14, 2020
Product Code
2020-01-1049
Content Type
Journal Article
Language
English