Dynamic interaction between contact loads and tooth wear of engaged plastic gear pairs |
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Authors: | Ah-Der Lin Jao-Hwa Kuang |
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Affiliation: | aDepartment of Mechanical Engineering, Cheng Shiu University, Kaohsiung 80833, Taiwan;bDepartment of Mechanical and Electromechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan |
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Abstract: | This study investigates the interaction between the dynamic contact load and the tooth profile wear of POM and Nylon 66 plastic gear pairs. A dynamic model of a plastic gear pair is presented. This model incorporates the effects of position-varying tooth mesh stiffness, damping ratio, load sharing, tooth profile wear and temperature on the dynamic contact load. The tooth wear equation developed by Flodin and Andersson [Simulation of mild wear in spur gears. Wear 1997;207:16–23] is utilized to simulate tooth wear and tooth profile variation. The variation of the contact load generated by the cumulative tooth profile wear is simulated and examined. A computational algorithm is developed to simulate the interaction between a dynamic contact load and tooth profile wear. Numerical results demonstrate that the dynamic load histogram of an engaged plastic gear pair can change markedly due to tooth wear. |
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Keywords: | Plastic gear Dynamic contact load Tooth profile wear POM Nylon |
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