Patent ID: 8185346
Filing Date: 2012-05-22
Classification: G05B,Y02P

Abstract:
1. A method in a maintenance scheduling tool implemented in a computer system for generating a dynamic maintenance schedule for a part of a machinery, the method comprising: selecting a critical part of the machinery, identifying influence factors having influence on a lifetime of said selected part, estimating replacement time for said selected part, and creating said maintenance schedule for said part of the machinery based on said identification of the influence factors and said estimated replacement time, wherein said estimating replacement time for said selected part comprises: performing a multiple linear regression based on data for failure times, failure information and costs for preventive replacement of said selected part for stating said part's function probability and using said function probability for estimating an optimal time for replacing the part, and performing, using a computer, an estimation of replacement time of the part based on collected information of the lifetime intervals and replacement times for said part.