ALPHATECH, INC.

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,448.00
Award Year:
1984
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
950
Agency Tracking Number:
950
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2 Burlington Ctr 111 Midlesex, Burlington, MA, 01803
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR. DOUGLAS P. LOOZE
(617) 273-3388
Business Contact:
() -
Research Institute:
n/a
Abstract
ALPHATECH, INC. PROPOSES TO DEVELOP AN INTEGRATED DECENTRALIZED MULTIVARIABLE CONTROL SYSTEM DESIGN METHODOLOGY FOR PROBLEMS RELATED TO THE ROBUST REAL-TIME CONTROL OF VERY LARGE FLEXIBLE SPACE STRUCTURES (VLFSS). A CRUCIAL NEED EXISTS FOR THE DEFINITION OF A SUPERIOR ARCHITECTURE OF SUCH CONTROL SYSTEMS AND THE REALTIME COORDINATION OF THE DECENTRALIZED MULTIVARIABLE CONTROLLERS. THE PROPOSED RESEARCH WILL USE BOTH STATE-SPACE AND FREQUENCY DOMAIN TOOLS; IT WILL INTEGRATE CONCEPTS FROM REGULAR PERTURBATION THEORY (WEAK DYNAMIC COUPLING), SINGULAR PERTURBATION THEORY (FREQUENCY SEPARATION BETWEEN RIGID-BODY AND FLEXURE MODES), AND SINGULAR-VALUE BASED STABILITY/-ROBUSTNESS ANALYSIS. THE THEORY WILL EXPLOIT THE UNIQUE PHYSICAL ATTRIBUTES OF A LARGE CLASS OF VLFSS, WITHOUT DEPENDING ON UNRELIABLE MODELS OF HIGH-FREQUENCY LIGHTLY-DAMPED MODES. THE RESULT OF THE PHASE I RESEARCH WILL BE A PRACTICAL DESIGN METHODOLOGY OF IMMEDIATE USE IN SEVERAL SPACE PROGRAMS.

* information listed above is at the time of submission.

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