Topology Optimization of an Automobile Door Structure using Load Transfer Ustar (U*) Based on the Structure Hierarchy Concept
構造階層化概念による荷重伝達指標Ustar(U*)を用いた自動車ドア構造の位相最適化
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- Publication code
- 20214198
- Paper/Info type
- JSAE Transaction
Vol.52 No.2
- Pages
- 469-474(Total 6 p)
- Date of publication
- Mar 2021
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 研究論文 Translation |
|---|---|
| Category(E) | ResearchPaper |
| Author(J) | 1) 幺 振鐸, 2) 大宮 正毅, 3) 杉山 太志, 4) 宮下 朋之, 5) 本田 正徳, 6) 河村 力 |
| Author(E) | 1) Zhenduo Yao, 2) Masaki Omiya, 3) Taishi Sugiyama, 4) Tomoyuki Miyashita, 5) Masanori Honda, 6) Chikara Kawamura |
| Affiliation(J) | 1) 慶應義塾大学大学院, 2) 慶應義塾大学, 3) 早稲田大学大学院, 4) 早稲田大学, 5) マツダ, 6) マツダ |
| Abstract(J) | 本研究では，構造物を主要な1次構造とそれを支える2次構造に分ける構造階層化概念を基に，荷重伝達指標U*を用い，ドアを車体構造として組み込んだ場合のU*位相最適化を行った．そして，ドアを車体構造の一部とする効果，1次構造が主要な荷重伝達を，2次構造がその荷重伝達を整える機能を有することを明らかにした． Translation |
| Abstract(E) | In this study, based on the concept of a structural hierarchy that classifies structures into main primary and secondary structures, topology optimization calculations with a load transfer index Ustar (U* value) were performed for a passenger car door structure. Considering the four conditions of load transfer path theory, the objective function was defined and optimized. The primary structure of the main load transfer path was emerged. For supporting the primary structure, secondary structures were randomly arranged and optimized for improving uniformity and continuity of load transfer on the primary structure. The obtained results showed that the load transfer of the door panel was greatly improved. Considering the door panels as one of the car body structure, i.e. load transfer members, the optimized door panels contribute to enhance the specific stiffness of the car body structure. |
