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      드레인 오리피스를 갖는 포펫 밸브의 상대 안정도에 관한 연구

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      https://www.riss.kr/link?id=A60153042

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      다국어 초록 (Multilingual Abstract)

      The poppet valve had used every field area due to high quality of leakage property and response characteristic. But this valve still has terrible disadvantage that is self-exited vibration. This problem affects stability of total system and raises noise. The researcher tries to reduce that self-exited vibration when valve was designed. The stability discriminant is the typical study to improve the performance of the poppet valve.
      This paper concerns about stability discriminant that uses poppet valve with a drain orifice. At the first, the mathematical model is computed from poppet valve. After that, the limitation of stability is calculated that based on Nyquist criterion. At the final, the stability discriminant is selected in each condition and the graph that shows stability in the system is drown by dimensionless quantity.
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      The poppet valve had used every field area due to high quality of leakage property and response characteristic. But this valve still has terrible disadvantage that is self-exited vibration. This problem affects stability of total system and raises noi...

      The poppet valve had used every field area due to high quality of leakage property and response characteristic. But this valve still has terrible disadvantage that is self-exited vibration. This problem affects stability of total system and raises noise. The researcher tries to reduce that self-exited vibration when valve was designed. The stability discriminant is the typical study to improve the performance of the poppet valve.
      This paper concerns about stability discriminant that uses poppet valve with a drain orifice. At the first, the mathematical model is computed from poppet valve. After that, the limitation of stability is calculated that based on Nyquist criterion. At the final, the stability discriminant is selected in each condition and the graph that shows stability in the system is drown by dimensionless quantity.

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      목차 (Table of Contents)

      • Abstract
      • 1. 서론
      • 2. 모델링
      • 3. 안정 판별식의 유도
      • 4. 시스템 안정 영역 고찰
      • Abstract
      • 1. 서론
      • 2. 모델링
      • 3. 안정 판별식의 유도
      • 4. 시스템 안정 영역 고찰
      • 5. 결론
      • 참고문헌
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