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http://dx.doi.org/10.3795/KSME-A.2009.33.12.1383

Optimal Wear Design for a Hypotrochoidal Gear Pump without Hydrodynamic Effect  

Kwon, Soon-Man (창원대학교 기계설계공학과)
Sim, Mu-Yong (STX엔진(주))
Nam, Hyoung-Chul (창원대학교 대학원 기계설계공학과)
Shin, Joong-Ho (창원대학교 기계설계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.33, no.12, 2009 , pp. 1383-1392 More about this Journal
Abstract
A disadvantage in the design of a hypotrochoidal gear pump as in a gerotor pump is a lack of parts that can be adjusted to compensate for wear in the rotor set, and as a consequence, it causes a sharp reduction of volumetric efficiency. In this paper, an attempt has been made to reduce the wear rate between the rotors of a hypotrochoidal gear pump. Using the knowledge of shape design on the rotors, the contact stresses without hydrodynamic effect between the rotors' teeth are evaluated through the calculation of the Hertzian contact stress. Based on the above result and the sliding velocity between the rotors, a genetic algorithm (GA) is used as an optimization technique for minimizing the wear rate proportional factor (WRPF). The result shows that the wear rate or the WRPF can be reduced considerably, e.g. approximately 12.8% in this paper, throughout the optimization using GA.
Keywords
Gerotor; Hypotrochoidal Gear Pump; Hertzian Contact Stress; Wear Rate Proportional Factor; Genetic Algorithm;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 2
연도 인용수 순위
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