System for controlling vibration of a dynamic surface
US6361483B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 8, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Feb 8, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B37/30
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A system for controlling vibration of a dynamic surface includes at least one sensor in communication with the dynamic surface for measuring vibration of the dynamic surface and generating a feedback signal proportional to the measured vibration and at least one piezoelectric actuator in communication with the dynamic surface and in communication with the controller for receiving the output signal. The system also includes at least one mass overlying the at least one piezoelectric actuator, whereby the at least one piezoelectric actuator lies between the mass and the dynamic surface, and a controller in communication with the at least one sensor for receiving the feedback signal, generating an output signal in response to the feedback signal and sending the output signal to the at least one piezoelectric actuator. The piezoelectric actuator applies a counter force between the dynamic surface and the mass upon receiving the output signal for reducing or controlling vibration of the dynamic surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.