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International Journal of Rotating Machinery
Volume 2015, Article ID 902941, 7 pages
http://dx.doi.org/10.1155/2015/902941
Research Article

Mathematical and Finite Element Modeling of Micro-Modification for Marine Gear

1Zhejiang Industry Polytechnic College, Shaoxing 312000, China
2Ningbo Institute of Measurement and Testing, Ningbo 315048, China

Received 23 June 2015; Revised 21 August 2015; Accepted 2 September 2015

Academic Editor: Hyeong Joon Ahn

Copyright © 2015 Xiongxi Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Based on the computer simulation technique, this paper used the professional gear design software MASTA and finite element software ANSYS combined with the method of gear micro-modification to redesign the gear profile and eventually realized the optimization design of gear micro-modification. Then the gear transmission model of one-level reducer was established to simulate and analyze the contact equivalent stress, transmission error, and meshing impact before and after gear modification. By comparing the simulations results it is found that gear micro-modification can lower meshing impact load, reduce the vibration strength, make gear transmission steady, and improve the gear bearing capacity. By comparing the transmission error curves and meshing impact load curves before and after gear micro-modification, this helps to understand the effects of gear micro-modification on the gear transmission and provides basis references for the future redesign of the marine gears with high strength and long service life.