피스톤 펌프 홀더의 압력분포와 부하특성에 대한 연구 = A Study on Pressure Distribution and Load Characteristics of Piston Pump Holder

다국어 초록 (Multilingual Abstract)

The pressure distribution on the holder surface of the piston pump is influenced by the shape of the holder surface and the thickness of the gap due to the squeeze effect.
Therefore, the surface shape of the piston pump holder is studied by using CFD software. This study shows that the pressure distribution and applied force on the surface of the holder are affected by the thickness of the gap and the shape of the groove.
According to the results, a flat surface of piston pump holder has the highest maximum pressure. And the maximum pressure of the grooved surface is slightly lower than that of the flat surface, but the average pressure and the load are slightly higher.
In addition, when the number of grooves is increased, the maximum pressure, the average pressure and the load are slightly lowered, but the storage ability of a lubricant is considered to be more increased.
Therefore the grooved surface of the piston pump holder will be more useful in storing a lubricant in the groove during operation, and more effective in preventing dry-sticking.

목차 (Table of Contents)

• 목 차
• LIST OF FIGURES
• LIST OF TABLES
• NOMENCLATURE
• Ⅰ. 서 론 1
• 1.1 연구배경 1
• 1.2 연구목적 3
• Ⅱ. 홀더 틈새 유동 5
• 2.1 홀더 평판의 틈새 유동 이론 및 모델링 5
• 2.2 이론 결과와 시뮬레이션 결과 비교 9
• Ⅲ. 홀더 평판의 모델링 및 경계조건 10
• 3.1 축소 홀더 평판의 모델링 및 경계조건 10
• 3.2 홀더 평판의 모델링 및 경계조건 15
• Ⅳ. 시뮬레이션 결과 및 고찰 20
• 4.1 홀더 평판의 압력분포 20
• 4.1.1 축소 홀더 평판의 시뮬레이션 결과 20
• 4.1.2 홀더 평판의 시뮬레이션 결과 23
• 4.2 홀더 평판의 부하특성 29
• 4.2.1 축소 홀더 평판의 시뮬레이션 결과 29
• 4.2.2 홀더 평판의 시뮬레이션 결과 41
• V. 결론 60
• 참 고 문 헌 62
• ABSTRACT & KEY WORDS 65