T-4-4-3 An Efficient Contact Search Algorithm using the Relative Coordinate System for Multibody System Dynamics

スポンサーリンク

概要

• 論文の詳細を見る

• Dynamic analysis of many mechanical systems is often involved with contacts among bodies. This paper presents an efficient and general contact search algorithm for multibody dynamics in the context of the compliance contact model. Many conventional collision detection algorithms are based on the absolute coordinate system. This paper proposes to use the relative coordinate system in detecting a contact. A boundary box of a defense surface geometry is divided into many blocks. A contact reference frame is defined on the defense body of a contact pair. Since all geometric variables necessary to detect a contact are measured relative to the contact reference frame attached to the defense body, the variables belonging to the defense body are constant, which significantly reduces computation time associated with the contact search. Therefore, the contact reference frame plays a key role in developing an efficient contact search algorithm. Contour of the defense body is approximated by many piecewise triangular patches, while contour of the hitting body is represented by hitting nodes along its boundary. Bounding boxes inside which contain each body of a contact pair are defined at a preprocessing stage to eliminate an exhaustive contact inspection when two bodies are in a distance. If two bounding boxes are turned out to be in a contact during the pre-search, each node on the hitting boundary is inspected to find out to which block the node belongs in the post-search. Since each block dividing the boundary of the defense body has a list of patches, each node on the hitting boundary is tested for a contact only with the patches in the block that the node belongs. Actual contact calculation is then carried out to find the contact penetration used in calculating the compliant contact force. Since the searching algorithm is coupled with the stepping algorithm of the numerical integration, a strategy for deciding an integration stepsize is proposed. Dynamic analysis of a paper fed into a copying machine is performed to demonstrate the validity of the proposed method.

• 一般社団法人日本機械学会の論文

著者

• Ryu H.

  Department of Materials Science and Engineering, Carnegie Mellon University

• Choi J.

  Mechanical Engineering, Department Kyunghee University

• Choi J.

  Mechanical Engineering Department Kyunghee University

• Cho H.

  Department Of Mechanical Engineering Hanyang University

• Bae D.

  Department Of Materials Science And Engineering Yonsei University

• Choi J.

  Department Of Biochemistry School Of Dentistry Kyungpook National University

• Ryu H.

  Mechanical Engineering Department Hanyang University

• Bae D.

  Mechanical Engineering Department Hanyang University

関連論文

• Crystallization Behaviors of Slags through a Heat Flux Simulator
• Hydrogenation and Annealing Effects on GaN Epilayers Grown on Sapphire Substrates
• Reaction-Diffusion Processes on Small-World Networks
• A teratogenicity study on phenolic antioxidants in rats : Abstracts of Papers Presented at the Thirty-Third Annual Meeting of the Japanese Teratology Society Nagoya, Japan, July 21-23, 1993
• SLD5 STUDIES ON THE BIOSYNTHESIS OF ANTIBIOTICS
• T-2-3-2 Nonlinear Multibody Dynamic Modeling and Its Interactive Controller Design For Magnetic-type Automatic Pipe-cutting Machine
• Low Threshold Single Cell 2-D Photonic Crystal Lasers
• Low Threshold Single Cell 2-D Photonic Crystal Lasers
• Crystallization Behaviors of Slags through a Heat Flux Simulator
• Functional Comparison of Native and Recombinant Human Salivary Histatin 1
• F-5-2-2 Development of a Multi-body Dynamics Simulation Tool for Tracked Vehicles, Part II : Application to Track Tension Controller Design
• Establishment of Porphyromonas gingivalis Heat-shock-protein-specific T-cell Lines from Atherosclerosis Patients
• ON CONFORMALLY FLAT WEAKLY CYCLIC RICCI SYMMETRIC MANIFOLDS
• Positive Deviation from a Hall-Petch Relation in Nanocrystalline Aluminum
• T-4-4-3 An Efficient Contact Search Algorithm using the Relative Coordinate System for Multibody System Dynamics
• T-2-2-3 Development of A Multibody Dynamics Simulation Tool for Tracked Vehicles, Part I : Efficient Contact and Nonlinear Dynamic Modeling
• Sh-1 A Recursive Implementation Method with Implicit Integrator for Multibody Dynamics
• AN OSTOBLAST DIFFERENTIATION SPECIFIC GENE, DLX-5, DOWN-REGULATED OSTEOCALCIN GENE EXPRESSION
• Polymorphisms in the Matrilin-1 Gene and Risk of Mandibular Prognathism in Koreans
• IS-53 Isolated fetal ascites as an unusual presentation of down syndrome and rapid chromosome analysis
• Cyclic changes in NMDA receptor activation in hippocampal CA1
• Scalar Spheroidal Harmonics in Five Dimensional Kerr-(A)dS(General and Mathematical Physics)
• Scalar Spheroidal Harmonics in Five Dimensional Kerr-(A)dS

もっと見る 閉じる

スポンサーリンク