- Tytuł:
- Fault detection based on Lyapunov exponents estimation for stabilized mechanical systems
- Autorzy:
-
Puzyrov, Volodymyr
Acho, Leonardo
Pujol, Gisela
Rodellar, José - Powiązania:
- https://bibliotekanauki.pl/articles/281447.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
fault detection
switched system
Lyapunov characteristic exponent
underactuated system - Opis:
- We study a stabilizable mechanical system in the vicinity of an equilibrium position. This position, as a rule, is unstable, and the system is underactuated. It is assumed that faults affect the technical process and its control. We suggest a fault diagnosis technique based on estimation of Lyapunov characteristic exponents of measured variables. A model of a linear switching system is involved for the system with faults description, and a common quadratic Lyapunov function is used to evaluate the deviation of the maximum exponent with respect to the default system. A scheme of fault magnitude estimation is suggested related to the degree of this deviation. An example of a 2-degree of freedom system is presented to illustrate the procedure.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2019, 57, 2; 519-531
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł