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流体中の運動計算のための物理シミュレーション環境 : 粒子群最適化によるダ・ヴィンチ型螺旋翼の形状決定

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Title: 流体中の運動計算のための物理シミュレーション環境 : 粒子群最適化によるダ・ヴィンチ型螺旋翼の形状決定
Other Titles: Physical Simulation Environment for Motion Computation in Fluid : Deciding a Shape of da Vinci's Spiral Wing by Particle Swarm Optimization
Authors: 大江, 亮介1 Browse this author
鈴木, 育男2 Browse this author →KAKEN DB
山本, 雅人3 Browse this author →KAKEN DB
古川, 正志4 Browse this author →KAKEN DB
Authors(alt): OOE, Ryosuke1
YAMAMOTO, Masahito3
FURUKAWA, Masashi4
Keywords: physical engine
physical simulation
computer aided design
particle swarm optimization
Issue Date: 2012
Publisher: 公益社団法人 精密工学会
Journal Title: 精密工学会誌
Volume: 78
Issue: 4
Start Page: 348
End Page: 353
Publisher DOI: 10.2493/jjspe.78.348
Abstract: This paper describes a method of computing motion in fluid and an experiment using it. Motion of an object is computed by a physical simulation environment. It is constructed of a physical engine, which processes computation of rigid body dynamics. Computation of fluid dynamics is additionally implemented to the environment so that motion in fluid is simulated faster than other computational methods. The environment read easily the three dimensional mesh data, which is commonly used by CAD systems, then computes and visualizes motion immediately. The experiment is optimizing shapes of Leonardo da Vinci's spiral wings. Parameters of the spiral wing are optimized by a particle swarm optimization (PSO) or a sequential search so that the wing flies higher under two conditions. PSO usually find better parameters than a sequential search and do about sixty times as faster as a sequential search. The environment computes virtual motion for twenty seconds in real time of one second. The shapes given by an optimization are difference each other according to the given conditions, and proper from viewpoint of fluid dynamics.
Type: article
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山本 雅人

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