차량 엔진룸의 하중 경로 개발을 위한 위상최적설계Topology Optimization for Load-Path Development of Automotive Engine-Room Structure
- Other Titles
- Topology Optimization for Load-Path Development of Automotive Engine-Room Structure
- Authors
- 정영석; 민승재; 김일도; 김윤창
- Issue Date
- May-2016
- Publisher
- 한국자동차공학회
- Keywords
- Crash Loadcase(충돌 하중조건); Engine Room Structure(엔진룸 구조); Static Stiffness Loadcase(강성 하중조건); Topology Optimization(위상 최적화)
- Citation
- 2016 한국자동차공학회 춘계학술대회, pp.655 - 656
- Indexed
- OTHER
- Journal Title
- 2016 한국자동차공학회 춘계학술대회
- Start Page
- 655
- End Page
- 656
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/5591
- ISSN
- 2713-7163
- Abstract
- This paper presents topology optimization problem for the load-path development of the automotive engine room structure considering the static stiffness and crash performances. Topology optimization method considering crash load cases generally contained the single load case of the barrier contact. However, the complex behavior of crash analysis is difficult to describe with the single load case. In this paper, we employed the multiple replacement load cases to represent different events within crash analysis. The positions and magnitudes of the applied forces were determined based on the crash behavior and the force history of the crash analysis results of the reference model. The optimization problem minimizes the weighted sum of each objective functions with a volume constraint was formulated to consider both the stiffness and crash performances. We constructed the new parts based on the result of topology optimization, and the stiffness and crash performances of the modified model were increased.
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