[RMR16] Model-based prognosis algorithms with uncertainty propagation: application to a fatigue crack growth
Conférence Internationale avec comité de lecture :
3rd Conference on Control and Fault-Tolerant Systems (SysTol'16),
September 2016,
pp..,
Barcelona,
Spain,
Mots clés: Prognosis ; health monitoring; uncertainties
Résumé:
In this paper, deterministic and stochastic nonlin-
ear prognosis methods that take uncertainty propagation into
account are evaluated. More specifically, a deterministic method
using interval techniques and two stochastic methods based on
Bayesian filtering, namely extended Kalman filter and particle
filter, are considered. The three algorithms are compared with
reference to a classical benchmark which is a crack growth
analysis, however they can be extended to other applications
as well. The advantages and drawbacks of each approach are
studied through different prognosis metrics such as accuracy,
precision and timeliness. Based on these numerical simulations,
the results show that deterministic methods can appropriately
manage uncertainty for prognosis.