This paper presents a gear design optimization approach that wasapplied to reduce both tooth contact temperature and noiseexcitation of a highspeed spur gear pair running withoutlubricant. The optimum gear design search was done using the RMC(Run Many Cases) program from The Ohio State University. Over 480thousand possible gear designs were considered, which were narroweddown to the 31 best candidates based on low contact temperature andlow transmission error. The best gear design was selectedconsidering, also, its manufacturability. The selected optimum geardesign was compared to an existing gear set using LDP (LoadDistribution Program) from The Ohio State University. Tooth contacttemperature was calculated for both designs using dry asteelonsteel coefficient of friction. Predicted contacttemperature correlated well with results observed on dynamometertests with the existing gear set. Predictions with the optimizeddesign showed a 48% contact temperature reduction and a 79% noiseexcitation reduction. The low contact temperature of the optimizeddesign will significantly contribute to preventing tooth surfacedamage under no lubricant operating conditions.
- Edition:
- 12
- Published:
- 10/01/2012
- Number of Pages:
- 9
- File Size:
- 1 file , 200 KB
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