A New Prognostic Method Based on Simulated Annealing Algorithm to Deal with the Effects of Dry Friction on Electromechanical Actuators

In prognostics it is possible to apply several approaches with the aim to detect incipient failures, caused by progressive wear, of electromechanical actuators (EMA) in primary flight commands. The anticipation of a failure has to be performed through a correct interpretation of the degradation pattern, so to trig an early alert for maintenance and to properly schedule the servomechanism replacement. This paper proposes a prognostic approach based on the simulated annealing optimization method, able to identify symptoms of degradation before the behavior of the actuator becomes anomalous; friction failures are considered as the case study. The approach is validated through an experimental test bench, resulting in an adequate robustness and a high degree of confidence in the ability to early identify faults, with a low amount of false alarms or not annunciated failures

[1]  Yan Luo,et al.  An Improved Nested Partitions Algorithm Based on Simulated Annealing in Complex Decision Problem Optimization , 2007, ICIC.

[2]  A. Sadegheih,et al.  Evolutionary algorithms and simulated annealing in the topological configuration of the spanning tree , 2008 .

[3]  Dean Karnopp,et al.  Computer simulation of stick-slip friction in mechanical dynamic systems , 1985 .

[4]  Matteo Davide Lorenzo Dalla Vedova,et al.  A Prognostic Model for Electrohydraulic Servovalves , 2009 .

[5]  Matteo Davide Lorenzo Dalla Vedova,et al.  Proposal of Prognostic Parametric Method Applied to an Electrohydraulic Servomechanism Affected by Multiple Failures , 2014 .

[6]  M. Pirlot.  General local search methods , 1996 .

[7]  Matteo Davide Lorenzo Dalla Vedova,et al.  A dry friction model and robust computational algorithm for reversible or irreversible motion transmission , 2012 .

[8]  N. Metropolis,et al.  Equation of State Calculations by Fast Computing Machines , 1953, Resonance.

[9]  Bijay Ketan Panigrahi,et al.  Simulated annealing approach for solving economic load dispatch problems with valve point loading effects , 2013 .

[10]  Paolo Maggiore,et al.  Definition of parametric methods for fault analysis applied to an electromechanical servomechanism affected by multiple failures , 2014 .

[11]  Matteo Davide Lorenzo Dalla Vedova,et al.  Model based analysis of precursors of electromechanical servomechanisms failures using an artificial neural network , 2015 .