Vibration isolation systems including multi-parameter isolators providing piezoelectric-based damping
AssigneeHoneywell International Inc.
InventorsRyan Goold, Timothy Hindle
Life of this patent
Estimating the term…
Abstract
Embodiments of a vibration isolation system are provided. In one embodiment, the vibration isolation system includes a first isolator having opposing mounting interfaces, a tuning spring disposed between the opposing mounting interfaces, and a piezoelectric actuator disposed between the opposing mounting interfaces and coupled in series with the tuning spring, as taken along a first load path through the first isolator. A controller is operably coupled to the piezoelectric actuator. During operation of the isolation system, the controller varies a control voltage supplied to the piezoelectric actuator to dampen vibrations transmitted through the first load path.
Claims20
A vibration isolation system, comprising:
- a first isolator, comprising:
- opposing mounting interfaces;
- a tuning spring disposed between the opposing mounting interfaces;
- and
- a piezoelectric actuator disposed between the opposing mounting interfaces and coupled in series with the tuning spring, as taken along a first load path through the first isolator;
- and
- a controller coupled to the piezoelectric actuator and, during operation of the isolation system, varying a control voltage supplied to the piezoelectric actuator to dampen vibrations transmitted through the first load path.
A vibration isolation system, comprising:
- a first isolator, comprising:
- opposing mounting interfaces;
- a tuning spring disposed between the opposing mounting interfaces;
- and
- a piezoelectric actuator disposed between the opposing mounting interfaces and coupled in series with the tuning spring, as taken along a first load path through the first isolator;
- a first sensor coupled to the first isolator and configured to measure the force applied across the first load path;
- one or more additional sensors coupled to the first isolator and configured to measure the relative rate or relative displacement across the opposing mounting interfaces;
- and
- a controller operably coupled to the piezoelectric actuator, to the first second, and to the one or more additional sensors, the controller configured to varying a control voltage supplied to the piezoelectric actuator in response to signals received from the first sensor and the one or more additional sensors during operation of the isolation system.
An isolator, comprising:
- opposing mounting interfaces;
- a tuning spring disposed between the opposing mounting interfaces;
- and
- a piezoelectric actuator disposed between the opposing mounting interfaces and coupled in series with the tuning spring, as taken along a first load path through the first isolator.
Dependencies are inferred from the claim text.