Search results for "Cylinder head"

showing 3 items of 3 documents

An experimental investigation on two different methods for swirl induction in a multivalve engine

2005

This paper describes an experimental investigation aimed at comparing the swirl effect induced by unbalancing the mass flow through the two intake ports of a multivalve engine head using two different methods: the first one reduced the curtain area of one of the intake valves [different lifts (DL) method]; the second one adopted a sluice-gate-shaped valve, installed upstream of the intake valves [swirl control valve (SCV) method] in order to cause a pressure drop. A steady-flow test rig (equipped with instrumentation for the discharge coefficient and swirl intensity measurement) was realized in order to compare and evaluate the results of both methods and determine their respective validit…

Control valvesPressure dropMechanical EngineeringMass flowTest rigAnalytical chemistryAerospace EngineeringOcean EngineeringMechanicsDischarge coefficientLift (force)Settore ING-IND/08 - Macchine A FluidoCylinder headAutomotive Engineeringswirl induction multivalve engine DL method SCV methodExperimental methodsMathematics
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FE Calculation Methodology for the Thermodynamic Fatigue Analysis of an Engine Component

2006

Thermo mechanical fatigue problem is treated to define an analysis methodology permitting the strength evaluation by reliability viewpoint. The main difficulty is the lack of both theoretical and experimental information; consequently the problem is treated verifying continually the validity and the limits of the developing solution method. The main task of the activity described in this paper was the development of a numerical methodology, based on FE analyses, for the evaluation of the structural behavior of engine components subjected to thermo mechanical fatigue phenomena. The chosen application was the exhaust manifold of an IC engine; FE analyses were executed following the standard m…

EngineeringExhaust manifoldbusiness.industryStructural engineeringFinite element methodEngines Fatigue analysis Manifolds Reliability Fatigue Exhaust systems Fluid dynamics Structural analysis Stress Finite element analysisStress (mechanics)Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineCylinder headFluid dynamicsTransient (oscillation)businessReliability (statistics)Thermo-mechanical fatigueVolume 4: Fatigue and Fracture, Heat Transfer, Internal Combustion Engines, Manufacturing, and Technology and Society
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Finite Element Simulation of Multilayer Metal Cylinder Head Gaskets

2006

ABAQUS gasket elements are an efficient and flexible tool to study gasket applications. Nevertheless the usage of the ABAQUS gasket elements is not limited to gasket analysis, but it provides an effective improvement in structural analysis. The results point out that both the predicted contact pressure and the predicted stress distribution depend on the mesh topology. Several combinations of mesh dimension and topology are investigated. The purpose is the definition of a calculation methodology and the demonstration of the application potentiality. Complex models analysis highlights that the set methodology constitutes a very effective tool for the design and optimization of gasket, cylinde…

EngineeringTest benchbusiness.industryGasketHead gasketTopology (electrical circuits)Structural engineeringFinite element methodSettore ING-IND/14 - Progettazione Meccanica E Costruzione Di MacchineCylinder headCylinder blockPoint (geometry)gasket analysis. numerical methods gasket modificationbusinessVolume 4: Fatigue and Fracture, Heat Transfer, Internal Combustion Engines, Manufacturing, and Technology and Society
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