Volume 3, No. 4, October 2014

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  • ISSN: 2278-0149 (Online)
  • Abbreviated Title:  Int. J. Mech. Eng. Robot. Res.  
  • Editor-in-Chief: ​Prof Richard (Chunhui) Yang, Western Sydney University, Australia
  • Associate Editor: Prof. B.V. Appa Rao, Andhra University; Prof. Ian R. McAndrew, Capitol Technology University, USA
  • Managing Editor: Murali Krishna. B
  • DOI: 10.18178/ijmerr
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Stress Distribution in Interference Fitted Assemblies with Different Material

Chetankumar K Jotawar1 , Chethan B R2, and Pawan C H1
1.Department of Mechanical Engineering, East Point College of Engineering & Technology, Bangalore, India.
2.Manufacturing Engineering, Bosch Ltd., Adugodi Bangalore, India.

Abstract—Interference fitted assemblies find wide engineering applications such as bearing bushes, liners in cylinder blocks and cup sealing in Governor covers. The strength of any such assemblies depends on various geometric features, amount of interference and other physical conditions of the mating surfaces. This paper presents the details of analysis carried out to study the effect of different Tension rod cup material on aluminum governor cover and geometric parameters on stress distribution at the mating surface of interference fitted assemblies. This work covers, analysis based on Lame’s approach and finite element method—to evaluate the principal stresses and Von Mises stresses on the performance of interference fitted assemblies. For the Finite Element Analysis (FEA), an appropriate finite element model was developed to analyses the pattern of contact stresses in interference fitted assemblies effect and under varying geometric parameters such as contact length, mating diameter and amount of interference. A comparative study of both the methods has been carried out.

Index Terms—Stress distribution, Interference assemblies, Lame’s approach, Finite element method

Cite: Chetankumar K Jotawar, Chethan B R, and Pawan C H, "Stress Distribution in Interference Fitted Assemblies with Different Material," International Journal of Mechanical Engineering and Robotics Research, Vol.3, No. 4, pp. 129-135, October 2014.