AProject Report

on “Modeling, Simulation & Kinematic Analysis of

Radial Engine Using CATIA -V5”Submitted by

Mr. Vishwpratap U. Patil Mr. Swapnil B. AmbekarMr. Vishnu N. Chavhan Mr. Shrikant P. Umale

Final Year Guided By

Prof. G.K. Gattani (Asst. Prof. )

Dept. of Mechanical EngineeringBabasaheb Naik College of Engineering, Pusad.

CONTENTSSr. No. Title

1. Introduction2. Cylinder Arrangements In IC Engines3. Radial Engine4. Basic Components Of Radial Engine5. About Modeled Engine6. Introduction To CATIA7. Different Workbenches Used In CATIA8. Basic Theory Of Mechanisms9. Simulation10. Measurement of Speed and Acceleration11. Kinematic Analysis12. Discussion13. Comparison of Results14. Conclusion

References

1. INTRODUCTION

• Engine:Internal Combustion Engine (IC Engine)External Combustion Engine (EC engine)

2. CYLINDER ARRANGEMENTS IN IC ENGINE

• In-line Engine• V Engine• Opposed Cylinder Engines• Opposed Piston Engine• Radial Engine• ‘X’ Type Engines• ‘H’ Type Engines• ‘U’ Type Engine• Delta Type Engines

3. RADIAL ENGINE

This type of engine has one or more rows of cylinders arranged in a circle around a centrally-located crankcase.

4. BASIC COMPONENTS OF RADIAL ENGINE

• Master Rod• Piston• Articulated Rod• Cylinder• Crankshaft• Piston pin• Piston ring• Link Pin• Piston Plug Pin• Master Rod Bearing

5. ABOUT THE MODELED ENGINE

As we are concentrating on modeling and simulation of radial engine we didn’t go for the designing of various parts. For the dimensions of various parts of radial engine we referred the book of Prof. Sham Tickoo and edited some of the dimensions as per need (with reference of flickr.com and cadcim.com).

6.INTRODUCTION TO CATIA• WHO USES CATIA?• WHERE IS CATIA USED?

Name of software tool

Unigraphics & solid edge

Pro-E IDEAS CATIA

Name of Indian users

Bajaj Auto, HAL, Indian

Railways,etc.

Kirloskar Group, etc.

Mahindra Crompton, etc.

Telco, Bajaj tempo, etc.

Name of the international users

GM, Boeing, GE, Philips, Sandvik,

etc.

Cummins, Whirlpool, etc.

Ford, Whitney, etc.

Air bus, Boeing, etc.

Application area

Good for manufacturer with

modeling and surfacing.

Good for modeling and analysis even for manufacturing

assembly.

Good for modeling and analysis even for manufacturing

assembly.

Good for surfacing and modeling.

Product company SIEMENS. P.T.C. S.D.R.C.DASSAULT SYSTEMES.

7.DIFFERENT WORKBENCHES USED IN CATIA

• Sketcher• Part Design

Master rod and Articulated rod

Link Pin and Piston

Piston Pin, Master rod Bearing and Piston ring

• Assembly DesignCont…

• Drafting

• Assigning Material To The Model• Color Scheme • Specification Tree

Drafting of Piston and Master rod

8. BASIC THEORY OF MECHANISMS

• Kinematic link• Kinematic pair• Kinematic chain kinematic link Used in Proposed Model• Cylindrical pair

• Revolute pair

• Skeleton Outline

This skeleton contains all necessary information to determine the relative motions of the main links, namely, the length AB of the crank; the length BC of the master rod; A the location of the axis of the main bearing; and the path AC of point C, which represents the piston-pin axis.

9. SIMULATION

Designing Joints With Assembly Constraints-Create Revolute Joints

-Create Cylindrical Joints

-Create Rigid Joints

10. MEASUREMENT OF SPEED AND ACCELERATION

11. KINEMATIC ANALYSIS

The kinetics analysis is calculated with help of three methods:

• Klein’s Construction.• Approximate Analytical Method for velocity and

acceleration.• Kinematic Analysis with the help of CATIA V5 R17.

• Klein’s Construction MethodCont…

• Velocity of piston, Vp = ×OM = 314.16×25.981 = 8.162 m/s.

• Acceleration of piston, ap = ×NO = ×14.946 =1475.111 m/s.

Approximate Analytical Method:• Velocity of Piston, Vp = ×r( + ) = 8.652 m/s

• Acceleration of Piston, ap = = 1391.58 m/s2 .

Using CATIA V5 Software:• Velocity of piston = 8.778 m/s.• Acceleration of piston = 1200.13 m/s2 .

Cont…

(

+

12. COMPARISON OF RESULTS

The results obtained through the various methods for the velocity and acceleration of the connecting rod and piston are found to be satisfactory.

13. DISCUSSION

• In order to calculate the accelerations, we must first find the positions of all the links or elements in the mechanism for each increment of input motion, and then differentiate the position equations versus time to find velocities, and then differentiate again to obtain the expressions for acceleration.

• From Newton's second law, “Dynamic forces are proportional to acceleration”.

• We need to know the dynamic forces in order to calculate the stresses in the components.

14.CONCLUSION

Using CATIA software one can understand complete working of the radial engine(any model) before it actual designing and manufacturing.

REFERENCES1. Prof. sham Tickoo, “CATIA-V5 for Engineers and Designers”,

Dreamtech press, Edition 2006.

2. R. S. Khurmi and J. K. Gupta, “Theory of Machine”, S. Chand

publications limited, Edition 2009, pp 514-530.

3. R. S. Khurmi and J. K. Gupta, “Machine Design”, S. Chand

publications limited, Edition 2010, pp 1127-1189.

4. Dr. Kirpal Singh, “Automobile Engineering”, Vol.1&2, standard

publishers distributers, Edition 2009.

5. V. Ganesan, “IC Engines”, TATA McGraw Hill Education Pvt.

Ltd, Edition 2009.