Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : June 06, 2021 - June 08, 2021
The robot hand, which opens and closes like a jellyfish’s bell, can act as a pump that sucks water from the surrounding area and discharges it in one direction. In this study, we investigate the characteristics of the flow field produced by a simple submerged gripper and estimate the pump efficiency. First, the behavior of water masses taken in from the surroundings and the induced flow enhanced by vortices were observed by using a one-degree-of-freedom gripper that generates a strong two-dimensional flow and induced secondary flow. Although the efficiency obtained from the cross-sectional flow rate and the rated power of the motor is as low as 0.89%, this study shows that the gripper can work as a pump that sucks the surrounding water mass and discharges.
