旋網用油圧ウインチの力学特性〔英文〕

概要

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Relationships of velocity (Vw; m/s) and of effective force (Fw; kgw) of a hydraulic purse winch during fishing operation were obtained by using only the engine revolution (Ne; rpm) and the effec-tive output pressure of an oil pump (P-Po; kgw/cm2), respectively. Using the loaded (i.e. pulling the net) P (kgw/cm2) and the non-loaded (i.e. without pulling the net) Po (kgw/cm2) pressure of the pump, Vw and Fw could be expressed respectively as Vw=Kv(qp/qw)Ne and Fw=kfqw(P-Po), where ku and kf are constants, qp (l/rev) and qw (l/rev) are the displacement of the pump and the winch, respectively. Without using special instruments, Vw and Fw of the purse winch can be calculated applying the equations obtained. This simplified method is useful for the Third World Countries where sufficient instruments could not be provided for research works mainly due to economic problems.
日本水産學會の論文