| 摘要 |
This invention describes a scheme for absorbing the energy of floating bodies such as ships approaching the coastal wall by providing the coastal wall with fenders made of spring materials along with dash-pots that absorb the energy of the approaching floating body due to liquid resistance so that the energy is first absorbed by the springs of the fender in the form of displacement energy and is then dissipated by the dash-pots. According to this invention, the energy of the approaching body that is to be absorbed by the fender increases as the spring constant of the fender is made small in the conventional devices consisting of only fenders, whereas the device of this invention permits the lowering of the energy to be absorbed by the fenders without having to increase the spring constant whereby the maximum reactive force on the coastal walls is decreased and also the movement of the floating body moored in an asymmetrical mooring system can be decreased because the spring constant of the fender can be flexibly altered so as to become close to the spring constant of the mooring system. |
