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Α Β Γ Δ Ε Ζ Η Θ Ι Κ Λ Μ Ν Ξ Ο Π Ρ Σ Τ Υ Φ Χ Ψ Ω α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ τ υ φ χ ψ ω
á à Á À é è É È ç Ç ê
Ä Ö Ü ä ö ü ß
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‘ ’ “ ” 〔 〕 〈 〉 「 」 『 』 【 】 ＂ （ ） ［ ］ ｛ ｝
± × ÷ ≠ ≤ ≥ ∞ ∴ ♂ ♀ ∠ ⊥ ⌒ ∂ ∇ ≡ ≒ ≪ ≫ √ ∽ ∝ ∵ ∫ ∬ ∈ ∋ ⊆ ⊇ ⊂ ⊃ ∪ ∩ ∧ ∨ ￢ ⇒ ⇔ ∀ ∃ ∮ ∑ ∏ ＋ － ＜ ＝ ＞
、 。 · ‥ … ¨ 〃 ― ∥ ＼ ∼ ´ ～ ˇ ˘ ˝ ˚ ˙ ¸ ˛ ¡ ¿ ː ！ ＇ ， ． ／ ： ； ？ ＾ ＿ ｀ ｜
½ ⅓ ⅔ ¼ ¾ ⅛ ⅜ ⅝ ⅞ ¹ ² ³ ⁴ ⁿ ₁ ₂ ₃ ₄
Æ Ð Ħ IJ Ł Ø Œ Þ Ŧ Ŋ æ đ ð ħ ı ij ĸ ŀ ł ø œ ß þ ŧ ŋ ʼn
А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я а б в г д е ё ж з и й к л м н о п р с т у ф х ц ч ш щ ъ ы ь э ю я
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      https://www.riss.kr/link?id=A106340174

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      다국어 초록 (Multilingual Abstract)

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      A poppet valve has better specification on responsibility and leakage than a spool valve. But poppet valve has disadvantage on fluid flow force because poppet lie on unstable suspension condition that is supported by mechanical spring and electro magnetic force. If poppet system is unstable in the valve, poppet raises system’s noise and decreases system’s responsibility. To avoid poppet’s bad affection, poppet valve has to analysis its stability when valve was designed. A poppet valve’s stability already had studied when its parameters were changed such as poppet’s shape, displacement, spring constant.
      This study concerns about mathematical model for poppet valve system that deals with fluid flow force. For this purpose, poppet valve’s flow force was induced by momentum theory on divergent flow condition. And induced flow force was imported on poppet’s motion equation.
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      A poppet valve has better specification on responsibility and leakage than a spool valve. But poppet valve has disadvantage on fluid flow force because poppet lie on unstable suspension condition that is supported by mechanical spring and electro magn...

      A poppet valve has better specification on responsibility and leakage than a spool valve. But poppet valve has disadvantage on fluid flow force because poppet lie on unstable suspension condition that is supported by mechanical spring and electro magnetic force. If poppet system is unstable in the valve, poppet raises system’s noise and decreases system’s responsibility. To avoid poppet’s bad affection, poppet valve has to analysis its stability when valve was designed. A poppet valve’s stability already had studied when its parameters were changed such as poppet’s shape, displacement, spring constant.
      This study concerns about mathematical model for poppet valve system that deals with fluid flow force. For this purpose, poppet valve’s flow force was induced by momentum theory on divergent flow condition. And induced flow force was imported on poppet’s motion equation.

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      목차 (Table of Contents)

      • Abstract
      • 1. 서론
      • 2. 포펫의 유체 유동력
      • 3. 안정 판별식의 유도
      • 4. 결론
      • Abstract
      • 1. 서론
      • 2. 포펫의 유체 유동력
      • 3. 안정 판별식의 유도
      • 4. 결론
      • 참고문헌
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