Design and Structural analysis of Aluminum Cylinder head gasket under Engine Operation

  S.Karthikeyan,  P.Sakthivel

To avoid the escaping gas from the engine affecting the overall performance of the engine during operation, both the proper pre-stressing force of the bolts as well as the gasket design are critical factors in enhancing the efficiency of the sealing of the gasket. In this investigation, both the distribution of the contact pressure on the gasket, and the stresses of the cylinder head at different loading conditions, such as cold assembly, hot assembly, cold start, and hot firing, are explored by numerical calculation based on the finite element method (FEM). The FEM model contains the upper part of the crankcase and the entire cylinder head. Heat transfer coefficients at the water jackets were obtained from a CFD calculation and used at the heat transfer analysis to evaluate the thermal stresses. This research also conducts the parametric analyses for the pre-stressing force of the bolts and compares the differences between cold assembly and cold start conditions. The cylinder head design shall consider its application, taking into account high combustion peak pressures to attempt the current environmental legislation and higher engine output power required by modern vehicular applications.

Keywords- Cylinder head, Gasket, Pre-stressing of bolts, Contact pressure

Unique Identification Number - IJEDR1502099
Page Number(s) - 530-533
Pubished in - Volume 3 | Issue 2 | May 2015
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  S.Karthikeyan,  P.Sakthivel,   "Design and Structural analysis of Aluminum Cylinder head gasket under Engine Operation", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.3, Issue 2, pp.530-533, May 2015, Available at :http://www.ijedr.org/papers/IJEDR1502099.pdf