0

Full Content is available to subscribers

Subscribe/Learn More  >

Structural Optimization in Multibody Dynamics System With FEM Model on Engine Components

[+] Author Affiliations
Hiroaki Hoshino, Masayoshi Shimada

Altair Engineering, Tokyo, Japan

Paper No. DETC2007-34241, pp. 495-502; 8 pages
doi:10.1115/DETC2007-34241
From:
  • ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 6th International Conference on Multibody Systems, Nonlinear Dynamics, and Control, Parts A, B, and C
  • Las Vegas, Nevada, USA, September 4–7, 2007
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4806-X | eISBN: 0-7918-3806-4
  • Copyright © 2007 by ASME

abstract

This paper describes the structural optimization technique with FEM optimization technology. The design shape of engine components have been optimized with consideration of dynamic effects. In the conventional approach of structural optimization in a Multibody Dynamics (MBD) system, the loads on FEM models of components as boundary conditions for subsequent shape optimization were used to be an output from MBD analysis. When an MBD system was optimized in MBD analysis, the body properties were used to be optimized instead of component shape. In this study a special modeling approach is followed to capture the loads easily and accurately with respect to contact behavior of metal bearings existing in engine components in order to improve the conventional approach with rigid elements. This approach is applied to the piston-crankshaft system of a one-cylinder engine. Topology optimization is performed to detect the effective design parameters of connecting rod (con-rod) shape to reduce weight prior to the shape optimization. Shape optimization of the con-rod results in a 6% weight reduction under the condition of critical compression loading just after the TCD (top dead center) of the combustion process. Furthermore, the structure modification for a piston based on an FE model also inside MBD analysis is performed. The base vectors of FEM morphing technology are used as design variables instead of body properties. These techniques are advanced approaches of structure modification based on FE model for MBD system.

Copyright © 2007 by ASME

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In