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照字面看可以看成流量型提升阀么？
1 s" j" ~$ Q1 |+ Q/ B! s* |) ]出去在此，好像是充当伺服阀的角色。: ~. V6 K1 M+ g( u7 O; s$ w
Metering poppet valves are being developed to regulate flow in place of more common
" f2 X' s. F% Q. M! Vspool valves. This is due to certain advantages offered by metering poppet valves.
0 Y" F* O* j# c$ ~4 b2 l( g) eHowever, these advantages cannot be fully realized until control design challenges/ U. w: T9 g: }1 K
involving stability and performance are solved. A design for a two-stage metering poppet( e3 _1 p" J, H3 J
valve is presented. For control, several researchers have used feedback linearization to
' S4 E! z: t ecancel part of a hydraulic system’s nonlinearities in spool valves. In this work,9 y2 N/ n! _) E% |
nonlinearities are cancelled in the input-output relationship of the metering poppet valve.) u" [2 ?1 v0 ~$ Z. G) O( p, e: Z
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