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Group Members Manikandan.A Muthukumaran.M Mohanraj.R Sanjay.R Guided by Mr.M.Ramamoorthi.,Me.

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GROUP MEMBERS MANIKANDAN.

A
MUTHUKUMARAN.M
MOHANRAJ.R
SANJAY.R

GUIDED BY Mr.M.RAMAMOORTHI.,ME.,
 The main objective of the present work is to
investigate Finite Element Analysis of the forged steel
crankshaft. In this present research work analysis is
conducted on forged Micro Alloy Steel crankshaft.
This crankshaft is used in heavy duty vehicle.
 But crankshaft is failed for various reasons.
 In this study a dynamic simulation was conducted on
two crankshafts, cast iron and forged steel, from
similar heavy vehicle engines. Finite element analysis
was performed to obtain the variation of stress
magnitude at critical locations.
 Crank shaft is a large component with a complex geometry in the I.C
engine, which converts the reciprocating displacement of the piston
to a rotary motion with a four bar link mechanism.
 Crankshaft consisting of shaft parts, two journal bearings and one
crankpin bearing. The Shaft parts which revolve in the main
bearings, the crank pins to which the big end of the connecting rod
are connected, the crank arms or webs which connect the crank pins
and shaft parts.
 In addition, the linear displacement of an engine is not smooth; as the
displacement is caused by the combustion chamber therefore the
displacement has sudden shocks. The concept of using crankshaft is
to change these sudden displacements to as smooth rotary output,
which is the
 input to many devices such as generators, pumps and compressors. It
should also be stated that the use of a flywheel helps in smoothing
the shocks.
 An extensive literature review on
crankshafts was performed by Zoroufi
and Fatemi (2005). Their study presents
a literature survey focused on fatigue
performance evaluation and comparisons
of forged steel and ductile cast iron
crankshafts. In their study, crankshaft
specifications, operation conditions, and
various failure sources are discussed
 An attempt in this paper, the crankshaft is
modelled by using Pro/E-Wildfire 5.0 software,
and static analysis is done by using ANSYS
Workbench software. To evaluate the von- misses
stress.
 The detailed study of the crankshaft for its loading
and operating conditions.
 Obtaining 2D drawings and loading conditions from
design specifications.
 Obtaining boundary conditions required for analysis.
 Creating of 3D Pro/E model using Pro/E-Wildfire 5.0
 Preparation 3D FEA model using Ansys 14.0
 The above FEA model get analyzed in Ansys 14.0
 High strength and stiffness to withstand
the high loads in modern engines, and to
offer opportunities for downsizing and
weight reduction.
 Resistance to fatigue in torsion and
bending.
 Low vibration.
 Resistance to wear in the bearing areas.
 Viscosity of lubrication oil is too low.
 If there is fault OSD (Over speed dripper)
equipment attach in engine which cause
heavy failure in CRANKSHAFT.
 If the engine speed exceeds the rated RPM of
the engine.
 If the engine is operated at over load.
 If the Lubricating oil is not changed
periodically.
 Pro-Engineer is a powerful application. It is ideal
for capturing the design intent of your models
because at its foundation is a practical
philosophy. Founder of this Pro-Engineer is
Parametric Technology Corporation.
 ANSYS, Analyzing Software, has been used in this
project. ANSYS Mechanical software is a
comprehensive FEA analysis (finite element) tool
for structural analysis, including linear, nonlinear
and dynamic studies.
 First, I have Prepared part in pro-e for
crankshaft and Save as this part as IGES for
Exporting into Ansys Workbench
Environment.
 Import .IGES Model in ANSYS Workbench
Simulation Module.
 Apply Material for Crank Shaft (structural
steel).
 Mesh the Crankshaft.
 Define boundary condition for Analysis
(torsional velocity in RPM, pressure)

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