Title :
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
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;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.946105
