Design and Analysis of Cylinder Head Gasket Under Engine Cold Assembly and Cold Start Condition

Enhancing the effectiveness of the gasket sealing involves both the sealing design and pre-stressing pressure of fixing bolt. Therefore, it is crucial to ensure through rigorous analytical techniques and testing that assembly among cylinder head, bolt, and gasket is both trustworthy and functional. Thermal and structural evaluations have to incorporate into the engine design that address these problems and avoid the need for immediate modifications. The normal pressure distribution on a gasket and the forces acting on the cylinder head’s gasket are studied using numerical computations and the finite element technique (FEM) in this work. The findings show that the pre-stressing strength of the hold-down bolts is crucial to the effectiveness of head seal sealing. The study focuses on different loading circumstances, such as cold assembly and cold start, without specifically considering the thermal stresses caused by the temperature variation in the piston head. The current study’s goal is to develop and assess the combustion head membrane of a bolted-attached structure that is sensitive to the pre-stressing strength of the studs in order to investigate gasket packing efficacy and the stress/strain characteristics of piston head gaskets. The FEM program ANSYS 16.2 is used in the numerical simulation of the structural research.