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Control and Pointing of Very Flexible Large Space Structures

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
52281
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
011NM-0620
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
PLANNING SYSTEMS, INC.
12030 Sunrise Valley Drive Suite 400, Reston Plaza Reston, VA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 2002
Title: Control and Pointing of Very Flexible Large Space Structures
Agency / Branch: DOD / USAF
Contract: F29601-02-C-0114
Award Amount: $732,048.00
 

Abstract:

The extreme flexibility of proposed ultra-lightweight spacecraft, such as the Air Force's PowerSail, will require a new generation of attitude control systems (ACS) that can accommodate low-frequency flexible dynamics within the pointing control bandwidth.In addition, as spacecraft designs continue to reduce mass density, it will become increasingly difficult to construct and validate dynamic models on the ground that are of sufficient fidelity to use for traditional fixed-gain control design. To meetthese challenges, we will show the feasibility of (Phase I) and demonstrate (Phase II) an adaptive attitude control design approach that works during flight to autonomously identify the system dynamics affecting the control bandwidth, then design feedbackcontrol laws to achieve predefined performance and stability criteria. Our technical approach is based on our Frequency Domain Expert (FDE) control algorithm, which has been demonstrated on the Space Station Freedom as part of the Middeck Active ControlExperiment (MACE-II).

Principal Investigator:

Lawrence D. Davis
Controls Group Manager
3217686500
ldavis@psi-controls.com

Business Contact:

James Hanby
Assistant Vice President
2288630007
jim.hanby@psilongbeach.com
Small Business Information at Submission:

Planning Systems, Inc.
12030 Sunrise Valley Drive, Suite 400 Reston, VA 20191

EIN/Tax ID: 520959900
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No