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ID 41267
本文ファイル
著者
Daifuku, Masafumi
Nakano, Youhei
Nakagawa, Kohya
Yamamoto, Takashi
キーワード
Damping material
Optimal design
Topology optimization
Sensitivity analysis
Finite element method
NDC
技術・工学
抄録(英)
In this research, we propose a new objective function for optimizing damping materials to reduce the resonance peak response in the frequency response problem, which cannot be achieved using existing criteria. The dynamic compliance in the frequency response problem is formulated as the scalar product of the conjugate transpose of the amplitude vector and the force vector of the loading nodes. The proposed objective function methodology is implemented using the common solid isotropic material with penalization (SIMP) method for topology optimization. The optimization problem is formulated as maximizing the complex part of the proposed complex dynamic compliance under a volume constraint. 2D and 3D numerical examples of optimizing the distribution of the damping material on the host structure are provided to illustrate the validity and utility of the proposed methodology. In these numerical studies, the proposed objective function worked well for reducing the response peak in both lower and upper excitation frequencies around the resonance. By adjusting the excitation frequency, multi-resonance peak reduction may be achieved with a single frequency excitation optimization.
内容記述
This research was partially supported by JSPS KAKENHI Grant Numbers 25820422 and 25630436.
掲載誌名
Journal of Sound and Vibration
365巻
開始ページ
230
終了ページ
243
出版年月日
2016-03-17
ISSN
0022-460X
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2015 ElsevierLtd. All rights reserved.
関連情報URL
部局名
工学研究科