USA flag logo/image

An Official Website of the United States Government

Control of Systems with Actuator Failures

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
62110
Program Year/Program:
2003 / SBIR
Agency Tracking Number:
023280
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Techno-Sciences, Inc.
11750 Beltsville Drive 3rd Floor Beltsville, MD -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2003
Title: Control of Systems with Actuator Failures
Agency: NASA
Contract: NAS4-03003
Award Amount: $70,000.00
 

Abstract:

A number of fatal aircraft accidents in recent years have been linked to component failures. With the predicted increase in air traffic these numbers are likely to increase. With reduction of fatal accidents as motivation, the proposal plans to investigate design of fault tolerant control system for aircrafts undergoing actuator failures. The feasible approach for such a control scheme is to predesign various controllers anticipating these failures and switching to appropriate controller when the failure occurs. It is found that use of nominal controller when actuators fail may lead to catastrophic accidents. Switching to an appropriate controller enabled by the available redundancy in actuation allows the system to perform adequately even when these failures occur. However, the predesign for actuator failures is not trivial as the position at which the actuators fail is not known a priori. For linear systems the problem has been solved in recent literature; however failures when they occur can cause excursions into nonlinear regimes. The primary thrust of this research would be to extend the results in nonlinear control theory to accommodate actuator failures in aircraft.

Principal Investigator:

Gaurav Bajpai
Principal Investigator
3015776000
gaurav@technosci.com

Business Contact:

Gaurav Bajpai
Systems Engineer
3015776000
gaurav@techosci.com
Small Business Information at Submission:

Techno-Sciences, Inc.
10001 Derekwood Ln Lanham, MD 20706

EIN/Tax ID: 952954785
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No