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照字面看可以看成流量型提升阀么?3 F& D& n2 @2 Z7 {+ `' T* m
出去在此,好像是充当伺服阀的角色。 ^/ d+ R6 a N' H3 H% j" O( D) C
Metering poppet valves are being developed to regulate flow in place of more common+ O; i' ~# f" v9 Q- e
spool valves. This is due to certain advantages offered by metering poppet valves.
& U9 Y) b& v( ?% c r6 ^) DHowever, these advantages cannot be fully realized until control design challenges# h0 t0 K) `/ Z9 X+ D
involving stability and performance are solved. A design for a two-stage metering poppet
6 I3 y) l' b4 evalve is presented. For control, several researchers have used feedback linearization to8 m) C3 [/ ?& ~& V
cancel part of a hydraulic system’s nonlinearities in spool valves. In this work,
$ k1 }: Q* H, |( Z# c0 m; znonlinearities are cancelled in the input-output relationship of the metering poppet valve.
. J- i, o: c- B8 C' _$ ^Reference tracking of the flow is analyzed. |
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