Stress Analysis of an Automotive Engine Valve by Finite Element Methods Eaton Corporation

Format:

Conference/Event

Author/Creator:

Pang, M. L., author.

Conference Name:

SAE 2006 World Congress & Exhibition (2006-04-03 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2006

Summary:

A detailed study, by finite element method (FEM), was conducted on an automotive engine exhaust valve subject to various loads (id est spring load, combustion pressure load, temperature profile and valve impact closing velocity). The 3D nonlinear (contact element and temperature-dependent) thermal-mechanical model was constructed and implicit time integration method was employed in transient dynamics under impact velocity. The predicted temperatures and maximum valve stress under impact velocity via FEM were compared with the measured test data, which were in good agreement. In addition, this study finds that the energy transfer during valve closing in normal engine operation is mainly conservative, and a linear relation exists between valve closing velocity and maximum stem stress, that was also confirmed by both test data and analytical expression presented using elastic wave and vibration theory

Notes:

Vendor supplied data

Publisher Number:

2006-01-0017

Access Restriction:

Restricted for use by site license