Effect of Variable Load, Speed and Acceleration of Crank Shaft on Depth of Wear of Linining Thickness of Bush Bearing
S.B.Chikalthankar1,V.M.Nandedkar2, V.G.Kokre3
1S.B.Chikalthankar, Department of Mechanical Engineering, Government College of  Engineering,  Aurangabad, India.
2V.M.Nandedkar, Department of Production Engineering, SGGSI&T, Nanded India.
3V.G.Kokre, Department of Mechanical Engineering, Government College of Engineering, Aurangabad, India.
Manuscript received on September 21, 2012. | Revised Manuscript received on October 10, 2012. | Manuscript published on October 30, 2012. | PP: 129-132 | Volume-2 Issue-1, October 2012.  | Retrieval Number: A0747102112/2012©BEIESP

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Abstract: Hydrodynamic Cu-Pb-Sn journal bearings are considered to be a vital component of all the rotating machinery, because of its simplicity, low cost and efficiency. It is used to support radial loads under high speed operating conditions. During this transient period, direct contact between the journal and bearing induces high friction and bushes become progressively worn-out, thus inducting certain disabilities. The bushes are provided with a lining thickness of Cu-Pb-Sn material which is found in the range of 450 to 600 micron. The aim of present experimental work is to determine effect of variable load, speed and acceleration on depth of wear of lining thickness (dw) of Cu-Pb-Sn material bush, which is widely used as bush material in automobile engine. Taguchi L9 (33 ) orthogonal array was used for the experimental plan. The mathematical model for input parameters and depth of wear obtained from regression analysis to predict values of depth of wear. S/N ratio and ANOVA analysis were used to obtained significant parameters influencing depth of wear. Test rig for testing dynamic behavior of bush bearing indigenously designed and developed by us.
Keywords: Crank shaft bush, Lining thickness, Depth of wear.