This document describes the design, modeling, and analysis of a connecting rod for a four-wheeler engine using CREO and ANSYS software. It will analyze connecting rods made of different materials and select the optimal material. The connecting rod will be modeled in CREO and analyzed in ANSYS for stresses and vibrations. Results will be compared across materials to conclude the best material and design.

1. K.Dilip Kumar
III Semester M.Tech - 15481D1510
Under the supervision of
Sri P. N.S.Srinivas. M.Tech
Assistant Professor
Department of Mechanical Engineering
Gudlavalleru Engineering College
(An Autonomous Institute Affiliated to JNTUK, Kakinada)
Seshadri Rao Knowledge Village, Gudlavalleru
DESIGN, MODELING AND ANALYSIS OF FOUR
WHEELER CONNECTING ROD BY USING CREO &
ANSYS
Design, Modeling and Analysis of four wheeler connecting rod by using CREO & ANSYS
by K Dilip Kumar is licensed under a Creative Commons Attribution 4.0 International
License.

2. ABSTRACT:
 The automobile engine connecting rod is manufactured at a
high volume rate and also treated as critical component. The
connecting rod is the intermediate link between the piston and
the crank, and is responsible to transmit the push and pull
force from the piston pin to crank pin, there by converting the
reciprocating motion of the piston to rotary motion of the
crank.
 In this project we are aiming to design and analyze different
connecting rod manufactured from different materials and
selecting a desired optimal connecting rod. A design
procedure is adopted to formulate required dimensions.
 A parametric model of connecting rod is modeled using
CREO 3.0 software, analysis is carried out using ANSYS 15.0
software. Structural and vibration analysis is carried out on
the connecting rod using different materials. A best optimum
material and model can be concluded by comparing the
stresses and frequencies induced in the connecting rod.

3. LITERATURE REVIEW
 Abhinav Gautam,. Et.al conducted experiments on static
stress analysis of connecting rod made up of SS 304 used in
Cummins NTA 885 BC engine and observed that the area
close to root of the smaller end tends to more failure rate.
 Kuldeep B,.et_al in his paper concluded that Weight can be
reduced by changing the material of the current al360.
 Pravardhan S,.et_al,conducted experiments or forged steel
connecting rod subjected to cyclic load comprising the peak
compressive gas load and the peak and Optimization is done.

4. PROPOSED PLAN OF WORK
Design of Connecting rod for given loading conditions.
A geometrical model for connecting rod in Creo.
Analysis of connecting rod in Ansys software.
Comparison of the results for different materials
Optimisation of connecting rod.

5. ENGINE SPECIFICATIONS
 Engine type
 Bore × Stroke (mm) = 73×71.5 mm
 Displacement = 1197 CC
 Maximum Power =83.14bhp @6000rpm
 Maximum Torque =115Nm @4000rpm
 Compression Ratio = 11.0:1

6. DESIGN OF CONNECTING ROD
 In designing a connecting rod, the following dimensions
are required to be determined:
1. Dimensions of cross-section of the connecting rod,
2. Determination of inertia force and gas pressure
acting on the pistons
3. Dimensions of the crankpin at the big end and the
piston pin at the small end,
4. Size of bolts for securing the big end cap, and
5. Thickness of the big end cap.

7. ANALYSIS
 Structural analysis is used to determine
deformations, strains, stresses
 Dynamic analysis is carried out on connecting rod
to determine natural frequencies,amplitudes and
mode shapes.

8.  1) S48C
 2) S45C
 3) SCM435
 4)41CrMo4
 5)39NiCrMo4
 6)Al8085 (Testing ony)