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MODAL AND THERMAL ANALYSIS OF EXHAUST MANIFOLD FOR TURBO DIESEL ENGINE USING FE METHOD

M. Ashok Kumar,  N. Amara Nageswara Rao

Department of Mechanical Engineering,  Nimra College of Engineering &Technology, Vijayawada, Andhra Pradesh, India-521456 Email: makumar8581@gmail.com

 

Abstract

      Exhaust manifolds are generally simple cast iron or stainless steel units which collect engine exhaust from multiple cylinders and deliver it to the exhaust pipe.

          In this project the modal analysis and thermal deformation of stainless steel exhaust manifolds for turbo diesel engine is investigated by finite element analysis (FEA). The software’s used are PRO-E 4.0, HYPERMESH-10 and ANSYS-11.The FE model includes the temperature dependent material properties as well as the interactions between exhaust manifold, cylinder head and fasteners. The result of analysis revealed that natural frequencies and remarkable thermal deformation and stresses occurred along the longitudinal direction. The new design of fastener hole, which allows sliding behavior, is expected to reduce thermal stress in turbo diesel engine exhaust manifold.

Key words: Exhaust manifold,  Modal and Thermal analysis, Finite Element Analysis

 

 

 


International eJournal of Mathematics and Engineering

Volume 3, Issue 1, Pages:  1390 - 1398