要清楚 负载的大小 6 ~+ `1 @ K3 zand then choose an actuator or pistion $ q( r, s4 e$ o2 b& K+ r+ r & `; P1 m$ S" ~, C& a9 Sestablish the flow and pressure profile6 l6 ~2 g5 d7 @. Q0 i
$ `/ f1 A1 u5 Q# z- y
find out the horsepower you need ' q! o9 z4 E- v n5 }2 K- L* y' U: j; Y' [- H q
be careful about the acceleration and deceleration period $ w# o! Y3 ^8 \1 C ; j5 ^, l8 j, h4 f7 t9 F4 Wquite agree with #2