Abstract
The machines which cause an impact such as a press machine and forging machine carry down impact to the ground, so sometimes adjoining machine's accuracy is worsened, and vibration pollution is brought about. Though heretofore floating foundation has been used to isolate vibration, here we propose a momentum absorbing damper as a new vibration isolator. This damper is composed of an auxiliary mass, a spring and a dashpot. The auxiliary mass contacts with the platform of the press machine and it leaves from the machine by an impulse. By this motion of the auxiliary mass, the momentum of the machine is absorbed. In this paper, the effect of vibration isolation of this damper is examined through experiments and numerical simulation.
