Active Structures and Noise Control Technical Group
The mission of the Active Structures and Noise Control Technical Group is to develop strategies to determine the optimal distribution of cancellation sources and actuators in active noise and vibration control applications. The control of the cancellation sources and actuators requires the development of adaptive algorithms that are fast and stable. In complex mechanical/acoustical systems with multiple sensing and source/actuator locations, mutual coupling between the controlling elements poses major challenges for adaptive, automatic control strategies.
Research Topics:
- Reduction of sound radiation with cancellation sources located in the vicinity of a primary radiator.
- Active control of suspension mounts of machinery and automobiles.
- Determination of optimal locations of cancellation sources to achieve either global or local noise reduction in small enclosures, such as automobiles and similar low modal density enclosures.
- Use of energy density or sound intensity for control.
- Reduction of vibration transmission from plates, elastically supported at multiple points on the foundation.
- Control of structural intensity to reduce the power flow of structural vibration in beams, plates, and complex structures.
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Group Leader: |
George Lesieutre |
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Office: |
229 |
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Phone: |
(814) 865-2569 |
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Fax: |
(814) 865-0792 |
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E-Mail: |