Cylinder head valve seats insertion simulation using finite elements non linear dynamic explicit method

Daniel Teixeira Gervasio; Erlon Castro Rodrigues; Carlos Eduardo Celia de Lima

doi:10.4271/2010-36-0095

In this work the explicit finite elements method (FEM) was used to verify the technical feasibility of a passenger car cylinder head valve seats insertion process, under interference, at ambient temperature.

In current production process, valve seat rings nitrogen chilling is used to make rings penetration easier at the cylinder head. The proposed valve seats insertion process eliminates nitrogen chilling, maintaining current processes speed and force parameters. A new valve seat external profile was used to reduce stress during insertion process. With the ring chilling removal, tensions and strains on the head and rings tend to be more critical.

This simulation's main objective is to evaluate the proposed cylinder head valves seats insertion production process effectiveness. This will allow forecasting and solving productive process problems before its implementation, and foreseeing final product quality.

The explicit finite elements method is normally used to simulate stamping processes or crash tests. The proposed application shows that the method can be used in other areas including powertrain.

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Cylinder head valve seats insertion simulation using finite elements non linear dynamic explicit method 2010-36-0095

SAE MOBILUS