Higher Edu - Research dev card
Development from the higher education and research community
  • Creation or important update: 12/02/10
  • Minor correction: 09/02/11

MARS : software tool for the assessment of ageing and maintenance efficiency of systems

This software was developed (or is under development) within the higher education and research community. Its stability can vary (see fields below) and its working state is not guaranteed.
  • Web site
  • System: UNIX-like, Windows
  • Current version: 0.80 - February 6th, 2011
  • License(s): Other
  • Status: under development
  • Support: maintained, ongoing development
  • Designer(s): Stéphane Despréaux, Olivier Gaudoin, Laurent Doyen, Franck Corset
  • Contact designer(s):
  • Laboratory, service: EDF R&D, LJK


General software features

MARS (Maintenance Assessment of Repairable Systems) takes as input data sets consisting of successive times of preventive and corrective maintenance performed on repairable systems, possibly left and right-censored. It implements the main imperfect maintenance models, of the virtual age type. It estimates the parameters of these models by the maximum likelihood method. This allows to assess the main reliability indicators such as ageing speed, maintenance efficiency, mean time to failure or mean cumulative number of failures on a given period of time. It plots and saves different graphs such as the reliability function, failure intensity or the men cumulative number of failures. It has features of extensive simulation in order to study the statistical properties of estimates and to make an accurate prognosis on the maintenance process.

Context in which the software is used

This software has been developed in cooperation with EDF R&D.

Publications related to the software