On-Blade Synthetic Active Control for Vibration and Acoustics Reduction

Award Information
Agency: Department of Defense
Branch: Army
Contract: N/A
Agency Tracking Number: 32972
Amount: $469,682.00
Phase: Phase II
Program: SBIR
Awards Year: 1997
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
1700 Riverside Drive (Rear), Williamsport, PA, 17701
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Gareth J. Knowles
 (516) 361-9534
Business Contact
Phone: () -
Research Institution
This proposal presents a new theory of piezoelectronic systems. This approach will for the first time enable semi-autonomous control with self-contained loss-free electronics. A completely new approach is presented which yields close to maximum actuator authority for a single device or array with independent control and (very) low net energy expenditure. Equally important, this new approach explains for the first time how many actuators are needed to meet a performance objective and where these devices should be located. This model will be the first truly practical semiautonomous system that can implement control via piezoelectric mechanisms, MEMS or active microcomposites and would appear to be the first realistic and practical method for designing control systems with arbitrary large active arrays, limited only by the materials issues and structural integrity issues. The theory underlying piezoelecctronics leads, for the first time, to a correct statement of the control law for actuator arrays. Second, this approach allows a clear cut formulation and solution of near optimal placement and independent control design. Third, piezoelectrics separates the low level implementation-synthetic circuitry and DSP microcontroller from the high-level neurocontrol chip that will simultaneously adaptively optimize the electronics and maximize the control authority.

* Information listed above is at the time of submission. *

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