Online monitoring of fatigue crack damage for life extending control of aircraft structures

Author

Sastry, V.V.S. ; Ray, Ashok

Author_Institution

Mech. & Nucl. Eng. Dept., Pennsylvania State Univ., University Park, PA, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

2363

Abstract

Presents an object-oriented software package for online monitoring of fatigue crack damage in aircraft structures. Earlier work of Caplin et al. (2000) introduced the concept of damage mitigating control of aircraft for attaining structural durability and performance. The code continuously monitors the (cyclic) structural load and computes the fatigue crack damage on-line in the state-space setting. Fatigue crack growth calculations and comparisons between the controllers are done using the state-space model (Patankar and Ray, 2000), which has been proved to be quite reliable

Keywords

aerospace computing; aircraft; computerised monitoring; fracture mechanics; mechanical engineering computing; object-oriented methods; software packages; aircraft structures; damage mitigating control; fatigue crack damage; life extending control; object-oriented software package; online monitoring; state-space model; structural durability; structural load; Aerospace control; Aerospace engineering; Aircraft propulsion; Fatigue; Monitoring; Motion control; Object oriented modeling; Performance loss; Software packages; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2001. Proceedings of the 2001

Conference_Location

Arlington, VA

ISSN

0743-1619

Print_ISBN

0-7803-6495-3

Type

conf

DOI

10.1109/ACC.2001.946105

Filename

946105