ペルー旋網用油圧ウインチの力学特性

抄録

The study was undertaken utilizing only an engine tachometer and an oil pressure gauge of a prototype Peruvian small purse seiner. The empirical relationships between a velocity of a winch (V_w; m/s) and an enging revolution (N_e; rpm), and between an effective force of a winch (F_w; kgw) and an effective output pressure of an oil pump (P-P_o; kgw/cm²) were determined based on the equations obtained by the previous study. Assuming the loaded pressure (P; kgw/cm²) and the non-loaded pressure (P_o; kgw/cm²) of the pump, since P_o=19.7kg/cm², then
V_w=0.000415N_e and F_w=24.5 (P-19.7)
Moreover, in standard fishing operations of Peruvian small purse seiners, V_w=0.52m/s and F_w=367kgw could be practically determined. These values could be used to examine the mechanical properties of a fishing gear during fishing operation.