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照字面看可以看成流量型提升阀么?! z% l' g: ?3 b, ], A' H( X/ k/ X
出去在此,好像是充当伺服阀的角色。( D( Q+ k" S1 j* R* `
Metering poppet valves are being developed to regulate flow in place of more common, P' q4 c0 `% U/ ?7 h1 I L) G& a) F
spool valves. This is due to certain advantages offered by metering poppet valves.
9 }6 }0 x% z$ J; Q/ c% G* \1 Z0 tHowever, these advantages cannot be fully realized until control design challenges# Y E/ w% W, o& |5 A# Q* r
involving stability and performance are solved. A design for a two-stage metering poppet a* T' y& G( J9 J
valve is presented. For control, several researchers have used feedback linearization to0 Z/ W- a. d, F; G" S4 R
cancel part of a hydraulic system’s nonlinearities in spool valves. In this work,
5 R7 x8 K( f& N* H+ L% s6 hnonlinearities are cancelled in the input-output relationship of the metering poppet valve.
7 E. j8 X) D4 S! Q1 _6 EReference tracking of the flow is analyzed. |
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