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照字面看可以看成流量型提升阀么？3 U0 C$ R4 j A
出去在此，好像是充当伺服阀的角色。3 m( Z9 _9 P! W2 u
Metering poppet valves are being developed to regulate flow in place of more common1 e! h6 @. R' q3 F
spool valves. This is due to certain advantages offered by metering poppet valves.
/ e5 R$ u+ P" Y1 \However, these advantages cannot be fully realized until control design challenges
! N( S9 b& _9 T3 x. T* Cinvolving stability and performance are solved. A design for a two-stage metering poppet) j7 W2 l1 G, ^% x
valve is presented. For control, several researchers have used feedback linearization to
" B1 P7 p; S _' e: v* jcancel part of a hydraulic system’s nonlinearities in spool valves. In this work," B0 @; k0 I1 x5 \1 J2 H
nonlinearities are cancelled in the input-output relationship of the metering poppet valve.5 C5 t- ^3 i, A) [% O _9 U
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