Piezoceramic vibration control device and tuning control thereof
US6193032A · kind A · utility
26Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 1998 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Mar 2, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F7/1005
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piezoceramic vibration control device in which stiffness is established by a capacitor in shunt with piezoceramic element of the device. The device can be formed of a stack of piezoceramic elements bonded to one another and precompressed by a spring. A control system is arranged to tune the natural frequency of the vibration control device to a disturbance frequency or s primary structural response frequency by varying the capacitance of the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.