An Engine Valvetrain Design Concept Based on CAD/CAE Integrated Simulation

Established in this paper is a numerical simulation based design concept for engine valve train. This is realized by combining traditional design theory and advanced simulation technologies: i.e. the kinematics analysis, dynamics analysis, engine gas exchange process optimization, finite element analysis of the camshaft, fatigue analysis, as well as the simulation study of influences on engine's noise and vibration of valve train design. The procedure and flow charts to realize this innovative CAD/CAE integration concept are also discussed in detail. This research provides useful guidance for advanced design approach of engine valve train.