in recent years, plastic gears have found their popularity asreplacements for metal gears in selected, lightly loadedapplications. Many studies have been done in the area of plasticgearing such as plastic material selection, injection molding andload capacity of plastic gears. Severai historical papers implythat plastic gears are “quieter” than steel gears. Yet, there havebeen few studies that focus on studying the transmission errors ofplastic gears and relating these errors to the noise that isgenerated.
This paper focuses on the transmission error and sound pressurelevel measurements of several plastic gear sets and comparesexperimental static transmission error measurements to computerpredictions. Based on the experimental results, in plastic gearsthe tooth contact is more susceptible to occurring off the line ofaction due to excessive tooth deflection. This directly affecîs thetransmission error behavior. A computer program that considers offline of action contact is used to accurately predict statictransmission error for the experimental plastic gears.
According to previous studies on metal gears, there is acorrelation between mesh harmonics of transmission error and soundpressure level. This study presents results used to check thiscorrelation in plastic gears. The comparison of the ratio of soundlevel to transmission for the plastic gears and steel gears withsimilar overail geometry specifications is also presented.
- Edition:
- 97
- Published:
- 11/01/1997
- Number of Pages:
- 13
- File Size:
- 0 files
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