연속 접촉 헬리컬 기어펌프의 수치해석 연구: 모델 개발 및 적용

다국어 초록 (Multilingual Abstract)

External gear pump(EGP) has a simple structure and excellent durability among hydraulic pumps, so they are generally used in hydraulic control system and fuel transfer system. However, in an involute tooth type pump, a volume trapped between the gear teeth is formed during two-point contact, and as a result pressure pulsation, vibration, and noise are generated, thereby deteriorating volumetric efficiency. To compensate for these shortcomings, a continuous contact helical gear pump(CCHGP) has been proposed and has been commercialized recently. Advantages have proven to be of great benefit in terms of reduced flow and pressure pulsations, as well as noise reduction due to the absence of entrapped volumes. However, unbalanced thrust occurs and manufacturing is difficult, so related research is insufficient. In this paper, continuous contact gear teeth were designed, and flow analysis was performed using a commercial program (SimericsMP+) to shape continuous contact helical gear teeth. We present a numerical approach to predict flow and pressure pulsations and pump performance by applying cavitation and turbulence.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 수치해석 모델
• 3. 펌프 시뮬레이션 결과
• 4. 결론
• References