| 摘要 |
A vibration attenuation system comprises at least one operative machine (17), one idle machine (18) and a support (21). Each machine (17, 18) is mounted on the support (21) via respective operative and idle mounts (19, 20). The stiffness of each mount (19, 20) may be switched between an isolation mode and an absorption mode. The stiffness of the operative mount is switched to isolation mode and the stiffness of the idle mount is switched to absorption mode to minimise vibration in the support (21). The mounts can be mechanical mounts such as springs, which are connected or disconnected according to which mode is required, or can have variable stiffness, for example a mount whose stiffness is dependent upon a change in potential applied to an electro-rheological fluid causing a change in viscosity of the fluid. The system is particularly suitable for reducing vibration in aircraft or ships. |
