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Design Study of Lightweight Automatic Transmission Parts for Vehicles Using Level Set-Based Topology Optimization
Technical Paper
2016-01-1386
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents a study on a design methodology for lightweight automatic transmission parts for vehicles. To improve fuel economy of the vehicle, weight reduction is a primary issue when designing automobile parts. Topology optimization, a particularly flexible type of structural optimization method, is an effective tool for developing lightweight designs. However, topology optimization methods available in most commercial software often provide optimization results that include grayscale areas, which cause the designs to be impractical from an engineering and manufacturing standpoint. To overcome this difficulty, we apply a level set-based topology optimization method that yields clear optimal configurations and therefore facilitates further improvement of the product design by engineers. In addition, we consider the imposition of a uniform cross-section constraint to improve the manufacturability of the obtained optimization results. This paper includes numerical examples in which the level set-based topology optimization method is applied using parking pawl model of AISIN AW automatic transmission. The optimization results demonstrate that the presented method provides clear optimal configurations. We only consider a maximum stiffness problem under volume constraint here from a weight reduction standpoint to verify a future potential of the method for the design of actual products.
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Citation
Kumagai, M., Otomori, M., Ide, T., Yamada, T. et al., "Design Study of Lightweight Automatic Transmission Parts for Vehicles Using Level Set-Based Topology Optimization," SAE Technical Paper 2016-01-1386, 2016, https://doi.org/10.4271/2016-01-1386.Also In
References
- Bendsøe , M.P. , and Kikuchi N. Generating Optimal Topologies in Structural Design Using a Homogenization Method Computer Methods in Applied Mechanics and Engineering 71 2 197 224 1988
- Fukushima , J. , Suzuki , K. , and Kikuchi , N. Shape and Topology Optimization of a Car Body with Multiple Loading Conditions SAE Technical Paper 920777 1992 10.4271/920777
- Yang , R.J. , and Chahande , A.I. Automotive Applications of Topology Optimization Structural Optimization 9 3 245 249 1995
- Chiandussi , G. , Gaviglio , I. , and Ibba A. Topology Optimisation of an Automotive Component without Final Volume Constraint Specification Advances in Engineering Software 35 10-11 609 617 2004
- Ogata , Y. , Suzuki , S. , and Hiraoka , M. Development of Topology Optimization Method for Reduction of Transmission Housing Weight SAE Technical Paper 2005-01-1699 2005 10.4271/2005-01-1699
- Wang , L. , Basu , P.K. , and Leiva , J.P. Automobile Body Reinforcement by Finite Element Optimization Finite Elements in Analysis and Design 40 8 879 893 2004
- Shin , J.K. , Lee , K.H. , Song , S.I. , and Park , G.J. Automotive Door Design with the ULSAB Concept Using Structural Optimization Structural and Multidisciplinary Optimization 23 4 320 327 2002
- Cavazzuti , M. , Baldini , A. , Bertocchi , E. , Costi , D. , Torricelli , E. , and Moruzzi , P. High Performance Automotive Chassis Design: a Topology Optimization Based Approach Structural and Multidisciplinary Optimization 44 1 45 56 2010
- Li , C. , Kim , I.Y. , and Jeswiet , J. Conceptual and Detailed Design of an Automotive Engine Cradle by Using Topology, Shape, and Size Optimization Structural and Multidisciplinary Optimization 51 2 547 564 2015
- Yamada , T. , Izui , K. , Nishiwaki , S. , and Takezawa , A. A Topology Optimization Method Based on the Level Set Method Incorporating a Fictitious Interface Energy Computer Methods in Applied Mechanics and Engineering 199 45-48 2876 2891 2010
- Otomori , M. , Yamada , T. , Izui , K. , and Nishiwaki , S. Matlab Code for a Level Set-based Topology Optimization Method Using a Reaction Diffusion Equation Structural and Multidisciplinary Optimization 51 5 1159 1172 2015