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照字面看可以看成流量型提升阀么？, s% C6 `. L/ G' `: j! O7 ]8 o8 b
出去在此，好像是充当伺服阀的角色。$ ?% T6 ?8 h. _5 c2 J
Metering poppet valves are being developed to regulate flow in place of more common. i* o |, i3 z# U
spool valves. This is due to certain advantages offered by metering poppet valves.
' L- M* R0 M) V7 e+ f ^" @# I+ i! wHowever, these advantages cannot be fully realized until control design challenges, r5 D$ Q3 B/ b( F+ `% s
involving stability and performance are solved. A design for a two-stage metering poppet
V2 K, k& {4 j, ^valve is presented. For control, several researchers have used feedback linearization to
$ Y: y. `) m8 v5 V1 \1 vcancel part of a hydraulic system’s nonlinearities in spool valves. In this work,6 P/ x" `; D/ D6 Y/ E& c' p& ]8 ?! [
nonlinearities are cancelled in the input-output relationship of the metering poppet valve.
% c5 y3 l, C8 ~1 r. V. uReference tracking of the flow is analyzed. |
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发表于 2008-1-10 16:07:34
楼主
发表于 2008-1-20 15:02:55