ALPHATECH, INC.

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 950
Amount: $49,448.00
Phase: Phase I
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Alphatech Inc
2 Burlington Ctr 111 Midlesex, Burlington, MA, 01803
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR. DOUGLAS P. LOOZE
 (617) 273-3388
Business Contact
Phone: () -
Research Institution
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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