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照字面看可以看成流量型提升阀么？" w/ e; G7 O, V3 M' U* X
出去在此，好像是充当伺服阀的角色。
# @) d) L$ l. ~! [/ zMetering poppet valves are being developed to regulate flow in place of more common0 |/ T( d/ q' O, e$ V9 B5 o2 m
spool valves. This is due to certain advantages offered by metering poppet valves.) j/ Q/ x$ T0 h$ Y7 M
However, these advantages cannot be fully realized until control design challenges, y4 [2 m: f. z, ^, d
involving stability and performance are solved. A design for a two-stage metering poppet
0 `3 n" A: z1 {valve is presented. For control, several researchers have used feedback linearization to
1 i9 n6 m$ E6 u. O4 i$ @) Pcancel part of a hydraulic system’s nonlinearities in spool valves. In this work," f2 d8 _0 x& u
nonlinearities are cancelled in the input-output relationship of the metering poppet valve.
3 Y: w3 }; T1 Q9 u6 M5 DReference 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