Analysis of solenoid of a hydraulic proportional compound valve = 비례복합밸브내의 솔레노이드에 관한 해석

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A hydraulic proportional compound valve, which controls flow direction and flow rate as well as pressure, has characteristics such that the flow rate is proportional to the input current. Thus, the pulling force exerted by the solenoid valve in a compound valve should be constant over the specified range of the stroke of plunger. The design condition of a small d.c. solenoid valve which could satisfy the required characteristics is investigated analytically and experimentally. An analytical method predicting magnetic force is presented using the concept of magnetic force along the stroke is presented. It is shown that constant plunger force can be obtained providing a nomagnetic material inserted in the yoke of the solenoid and that the clearance between the yoke and the plunger is also an important factor for constant plunger force. It is found in the experiment that silicon steel as a yoke material is better than pure iron in magnetic hysterisis, while pulling force of silicon steel yoke is less than that of pure iron yoke. The comparison of analytical results with the experimental data shows satisfactory agreement.
Advisors
Lee, Chung-Ohresearcher이정오researcher
Description
한국과학기술원 : 기계공학과 생산공학 전공,
Publisher
한국과학기술원
Issue Date
1979
Identifier
62565/325007 / 000773526
Language
eng
Description

학위논문 (석사) - 한국과학기술원 : 기계공학과 생산공학 전공, 1979.2, [ vi, 63 p. ]

URI
http://hdl.handle.net/10203/43817
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=62565&flag=dissertation
Appears in Collection
ME-Theses_Master(석사논문)
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