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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 8    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 8, August 2011
Computer Aided Modeling and Optimization of Crankshaft
Full Text(PDF, 3000)  PP.  
Author(s)
C.M.Balamurugan, R.Krishnaraj, Dr.M.Sakthivel, K.Kanthavel, Deepan Marudachalam M.G, R.Palani
KEYWORDS
Crankshaft, Forged steel, Cast iron
ABSTRACT
The Computer aided modeling and optimization analysis of crankshaft is to study was to evaluate and compare the fatigue performance of two competing manufacturing technologies for automotive crankshafts, namely forged steel and ductile cast iron. In this study a dynamic simulation was conducted on two crankshafts, cast iron and forged steel, from similar single cylinder four stroke engines.Finite element analyses was performed to obtain the variation of stress magnitude at critical locations. The dynamic analysis was done analytically and was verified by simulations in ANSYS.Results achived from aforementioned analysis were used in optimization of the forged steel crankshaft.Geometry,material and manufacturing processes were optimized considering different constraints,manufacturing feasibility and cost.The optimization process included geometry changes compatible with the current engine,fillet rolling and result in increased fatigue strength and reduced cost of the crankshaft, without changing connecting rod and engine block.
References
1. Farzin H. Montazersadgh and Ali Fatemi – “Stress Analysis and Optimization of Crankshafts Subject to Dynamic Loading” - FIERF, AISI

2. Muhammed Nasiruddin Bin Anidin –“ Finite element analysis of upper crank shaft six stroke engine using CAE Software” – University Malaysia Pahang.

3. Steve Smith – “ Utilizing crankcase deflection analysis to improve crankshaft design and engine performance” – Oxford, U.K

4. Jonathan Williams, Farzin Montazersadgh and Ali Fatemi –“Fatigue performance comparison and life prediction of forged steel and ductile cast-iron crankshafts” – University of Toledo, Ohio.

5. M.Zorouf and A.Fatemi- “The durability evaluation of crankshafts including comparisons of competing manufacturing processes and cost analysis.

6. Zissions P.Mourelatos –“A crank shaft system model for structural dynamic analysis of internal combustion engines”.

7. J.Grum –“Analysis of residual stresses in main crank shaft bearings after induction surface hardening and finish grinding – University of Ljublijana, Slovenia.

8. Xue-Qin Hou, Ying Li,Tao Jiang-“ Fracture failure analysis of ductile cast iron crankshaft in a vehicle engine – Beijing Institute of Aeronautical Materials ,China.

9. Tian Guanglai,Wei Hanbing,-“Analysis of Stresses in Forged steel Crankshaft of internal combustion engines

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