| 摘要 |
PROBLEM TO BE SOLVED: To save energy of a hydraulic source device for a vibration exciter.SOLUTION: A hydraulic source device 100 for supplying working fluid to a vibration exciter periodically generating vibration by supply and discharge of the working fluid includes a variable displacement hydraulic pump 10 capable of adjusting discharge capacity of the working fluid, a pressure sensor 20 for detecting a pressure of the working fluid supplied to the vibration exciter from the hydraulic pump 10, and a control section for adjusting the discharge capacity of the hydraulic pump 10 on the basis of the pressure of the working fluid detected by the pressure sensor 20. The control section stepwise reduces the discharge capacity of the hydraulic pump 10 from an initial value, and when it is determined that the pressure of the working fluid detected by the pressure sensor 20 is lower than a determination value which is the minimum value at which the vibration exciter can stably generate vibration, the control section adjusts the discharge capacity of the hydraulic pump 10 to the discharge capacity before the detected pressure becomes lower than the determination value. |
