Design of High Temperature Engine Components 950982

The successful design of engine components for high temperature applications is very dependent on the use of advanced finite element methods. Without the use of thermal and structural modeling techniques it is virtually impossible to establish the reliable design specifications to meet the application requirements. Advanced modeling and design of two key engine components, the cylinder head thermal insulating headface plate and the capped air gap insulated piston, are presented. Prior engine test experience contributes to further understanding of the important factors in recognizing successful design solutions. It has been found that the modeling results are only as good as the modeling assumptions and that all modeling boundary conditions and constraints must be reviewed carefully.