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照字面看可以看成流量型提升阀么？) N% A* A3 k% |0 R
出去在此，好像是充当伺服阀的角色。
6 f! E) Q# y# c$ ^5 qMetering poppet valves are being developed to regulate flow in place of more common$ D% \8 W5 |) ]2 ~
spool valves. This is due to certain advantages offered by metering poppet valves.
/ C0 F( a& g1 a9 C- U* kHowever, these advantages cannot be fully realized until control design challenges8 s# ]' s; }) T9 t3 \. S( Z2 w
involving stability and performance are solved. A design for a two-stage metering poppet' R; D; p& e0 L& Y# X
valve is presented. For control, several researchers have used feedback linearization to
4 @ J; g2 N: [& N! hcancel part of a hydraulic system’s nonlinearities in spool valves. In this work,
+ U, ?$ v' o3 d5 H* j8 u: inonlinearities are cancelled in the input-output relationship of the metering poppet valve.. ?/ O$ ~9 |$ k/ `6 ^( J, D
Reference 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