Abstract
With the development of high-performance computers, the contact finite element analysis (FEA) method has become more and more popular for studying both the static and dynamic behaviors of gear drives. In this paper, a precise tooth profile modification (TPM) approach of the helical gear pairs is presented first. The type and amount of the TPM are accurately determined by the static contact FEA results. Then dynamic contact simulations for the helical gear pairs with and without TPM are, respectively, carried out to evaluate the effect of the presented TPM approach on vibration reduction. No additional assumptions and simplifications are required for the static and dynamic contact analysis models. Vibration comparison experiments are also carried out on an open power flow test rig. Both the simulated and experimental results show that the presented precise TPM of helical gears is effective on vibration reduction around the working load, and the dynamic contact simulation is effective in estimating the effect of the TPM on vibration reduction in the designing stage.
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Recommended by Editor Yeon June Kang.
Yongjun Wu is a Ph.D student at the school of Jet Propulsion at Beijing University of Aeronautics and Astronautics. His research interests are in vibration and vibration control for mechanical transmission systems, structural strength and vibration for mechanical structures.
Jianjun Wang is a professor in the School of Jet Propulsion at Beijing University of Aeronautics and Astronautics. He received an MS in Mechanical Engineering at Chongqing University in 1983, and a Ph.D in Solid Mechanics at Tsinghua University in 1998. His research interests are in vibration for mechanical transmission systems, FE simulation for various solid and fluid problems, structural strength and vibration for turbine engines, and active vibration control of engineering structures. He has more than 70 technical papers published on journals at home and abroad, and is the author or coauthor of several books.
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Wu, Yj., Wang, Jj. & Han, Qk. Static/dynamic contact FEA and experimental study for tooth profile modification of helical gears. J Mech Sci Technol 26, 1409–1417 (2012). https://doi.org/10.1007/s12206-011-1028-1
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DOI: https://doi.org/10.1007/s12206-011-1028-1