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Lathe Maintenance Ontology (LMO) By: Keith Fitzsimmons IE 500 Final Project – Fall 2014 Scope Create an ontology which outlines a machines necessary preventative maintenance based on a set time period. 2 www.eptam.com Lathes What is a lathe? 3 Preventative Maintenance What is preventative maintenance? 4 Maintenance Regimen 5 Maintenance Task 6 Applications Outlining the required preventative maintenance necessary to ensure proper operation lifespan of equipment. Original equipment manufacturers can use information to see required maintenance on a competitors machine similar to their own. Creation of a centralized location for the storage of all maintenance tasks necessary to complete preventative maintenance on a specific piece of machinery. 7 Existing Ontologies Manufacturing Service Descriptive Language (MSDL) Focuses on solely manufacturing process. Industrial Maintenance Management Ontology (IMAMO) Focuses on what is needed to create a preventative maintenance program. 8 MSDL • General overview of the manufacturing process and its capability. • Does not include maintenance anywhere in the process. 9 http://ceur-ws.org/Vol-886/paper_1.pdf IMAMO – CONCEPT TREE 10 Existing Databases Computerized Maintenance Management Software(CMMS) These programs manage machine maintenance using chart style databases. This style program is normally controlled by a single company, organization or site where the machinery is used. Equipment identifiers may not be unique to a machine in this database if it is used by a large organization. 11 LMO – Continuants • The continuants are the machines, their preventative maintenance schedule and objects needed to conduct maintenance tasks. 12 LMO- Preventative Maintenance Schedule • The preventative maintenance schedule is recommended by the original equipment manufacturer. • Adherence to this impact the warranty on the machine. 13 LMO - Occurents • These include the practiced maintenance regimen; the maintenance tasks and time periods which are used to create the maintenance regimen. 14 Maintenance Regimen • Maintenance to be • completed as prescribed by the preventative maintenance schedule. 15 Important part of this ontology as different machines can have the same Maintenance Task at a different time period. LATHE CNC LATHE OKUMA LT-10 PM SCHEDULE MAINTENANCE PM REGIMEN SCHEDULE MAINTENANCE TASK 16 QUESTIONS? 17