This paper aimed at a gasoline engine "cylinder head- cylinder gasket-cylinder body-bolt" sealing system, built the 3D solid model and the finite element model of the assembly, and calculated the stress and strain of the cylinder gasket under the cylinder pressure and the deformation of the engine block. In addition, based on the calculation results, this paper put forward the optimization scheme of the cylinder gasket structure, re-established the simulation model, and get the calculation results. The calculation results showed that the cylinder pressure had influence on the sealing performance of the cylinder gasket, and the influence of cylinder pressure should be taken into consideration when designing the cylinder gasket. When the cylinder pressure was applied, the overall contact stress of the cylinder gasket had decreased, and the whole remaining height of the gasket had increased. At the same time, the cylinder pressure generated impact load to the cylinder head, and the deformation of the cylinder reach the maximum value. The cylinder gasket could not meet the requirements of manufacturers. After the structure optimization, the minimum contact stress of all convex bars was improved from 22.239Mpa to 28.596MPa; the minimum contact stress of the semi convex bars was improved from 5.438Mpa to 7.778Mpa. So the sealing requirement of the host plant was satisfied. After the structure optimization, the compaction thickness of the cylinder gasket was more uniform. The average compaction thickness was decreased by 0.024mm, but it could still meet the design requirements. Besides, the structure optimization of cylinder gasket had also improved the deformation of the cylinder head and body.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Finite Element Analysis of Cylinder Gasket under Cylinder Pressure and Structural Optimization of the Cylinder Gasket


    Additional title:

    Sae Technical Papers


    Contributors:
    Li, Jiaqi (author) / Yang, Shuai (author) / Shi, Xiuyong (author) / Lu, Xuewen (author) / Wei, Yanan (author)

    Conference:

    WCX™ 17: SAE World Congress Experience ; 2017



    Publication date :

    2017-03-28




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Finite Element Analysis of Cylinder Gasket under Cylinder Pressure and Structural Optimization of the Cylinder Gasket

    Wei, Yanan / Yang, Shuai / Shi, Xiuyong et al. | British Library Conference Proceedings | 2017


    Cylinder Head Gasket Simulation in Finite Element Analysis

    Hebert, Colin / Webster, William | SAE Technical Papers | 1998


    Cylinder head gasket simulation in finite element analysis

    Herbert,C. / Webster,W. / Ricardo Consulting,GB et al. | Automotive engineering | 1998


    Cylinder head gasket development

    Tronel, T. / Whitham, G. P. D. | British Library Online Contents | 1996


    Primary gasket for cylinder assembly and cylinder assembly

    CARRARA MARCO / MAZZEI LUCA / SALA PAOLO | European Patent Office | 2025

    Free access