2012, Volume 7, Issue 3
Frontiers of Mechanical Engineering >> 2012, Volume 7, Issue 3 doi: 10.1007/s11465-012-0331-6
Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing
1. Department of Engineering, Manipal University, Dubai 345050, United Arab Emirates
2. St Joseph Engineering College, Mangalore 575028, India
3. Department of Mechanical Engineering, B.M.S. Institute of Technology, Bangalore 560064, India
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Abstract
This paper deals with the contact stress, power loss, and pitting of spur gear tooth in altered tooth-sum gearing for a tooth-sum of 100 teeth when altered by±4% tooth-sum. Analytical and experimental methods were performed to investigate and compare the altered tooth-sum gearing against the standard tooth-sum gearing. The experiments were performed using a power recirculating type test rig. The tooth loads for the experimental investigations were determined considering the surface durability of gears. A clear picture of the surface damage was obtained using a scanning electron microphotograph. The negative alteration in the tooth-sum performed better than the positive alteration in a tooth-sum operating between specified center distances.
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