|
Abstract: Aiming at the economic optimization of plant maintenance, a
maintenance system optimize method based on workflow modeling and
simulation is proposed, in which the maintenance system is described
with a general stochastic petri net workflow model and the distribution
hypothesis of transition time delay in the model is tested according to
maintenance record. To overcome the limitations of analytical method the
workflow simulation technology is introduced in performance computation
of maintenance system, and long-time operation of the maintenance system
is simulated with the aid of selective Artifex software. Relation
between maintenance resource allocation and maintenance system
performance is ascertained by analysis of simulation data on different
resource conditions, which can be used to guide the improvement of the
plant maintenance. Validity and feasibility of the method are verified
by the successful application in a petrochemical company.
Key words: Maintenance system Workflow modeling General stochastic
petri net Workflow simulation System optimization
CLC No: TP391
TH17
湖南省制造业信息化示范工程基金(Hnmie-A-070)、湖南省科技攻关基金(03GKY3057)和湖南大学校基金资助项目.
Received 20040902, received in revised form 20041220
|