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  • Summary & Details

Study on Model-Based Design for Powertrain Specification Low Computational-Cost Design Method for Ride Comfort with Eigenvalue Analysis

モデルベースデザインによるパワートレーン仕様設計の取組(第五報) 固有値計算を活用した低計算コストな乗り心地性能設計

Detailed Information

Author(J)1) 森田 菜月, 2) 河口 篤志, 3) 阿部倉 貴憲, 4) 松森 唯益, 5) 山中 玄太郎
Author(E)1) Natsuki Morita, 2) Atsushi Kawaguchi, 3) Takanori Abekura, 4) Tadayoshi Matsumori, 5) Gentaro Yamanaka
Affiliation(J)1) 豊田中央研究所, 2) 豊田中央研究所, 3) 豊田中央研究所, 4) 豊田中央研究所, 5) 豊田中央研究所
Affiliation(E)1) Toyota Central R&D Labs., 2) Toyota Central R&D Labs., 3) Toyota Central R&D Labs., 4) Toyota Central R&D Labs., 5) Toyota Central R&D Labs.
Abstract(J)走りの性能検討は、車両機構モデルによる動力学計算を必要とし計算コストが大きい。本検討では、乗り心地評価のための動力学計算から抽出した振動モードを、計算コストの小さい固有値計算から得たモード形状で近似することで、動力学計算を固有値計算で置換し、計算コストを削減する手法を提案する。

Translation

Abstract(E)Model based design is widely used for reducing development period. Running performance, one of the fundamental features of vehicle, needs dynamic calculation using mechanistic model for its design study and takes long calculation time. On the other hand, eigenvalue analysis takes less time than dynamic calculation and gives vibration characteristics such as natural frequency and mode shapes. In this work, dynamic calculation for estimation of ride comfort is replaced with eigenvalue analysis by approximating vibration mode extracted from the dynamic calculation by mode shapes, and that results in reducing time for calculation.

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