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Five to Ten Year Vision for CBM. by: John S. Mitchell for: ATP Fall Meeting -- Condition Based Maintenance Workshop November 17, 1998, Atlanta Georgia. CBM -- Key Points. Overview part of larger process (Asset Management) focus on highest value activities integrate information systems
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Five to Ten Year Vision for CBM by: John S. Mitchell for: ATP Fall Meeting -- Condition Based Maintenance Workshop November 17, 1998, Atlanta Georgia
CBM -- Key Points • Overview • part of larger process (Asset Management) • focus on highest value activities • integrate information systems • improve value and productivity • Pathways being pursued in industry • Challenges and barriers • Future directions
Definition of CBM: • Maintenance action based on actual condition (objective evidence of need) obtained from in-situ, non-invasive tests, operating and condition measurements. • does not include RCM, TPM or PM (RCM and TPM establish requirements and processes) RCM -- Reliability Centered Maintenance TPM -- Total Productive Maintenance PM -- Planned (time based) Maintenance
Value of CBM: • Condition Measurements required for CBM uniquely predict ability to meet mission requirements on time, cost and quality • Increase ability to capitalize on opportunities • Reduce lifetime cost of ownership • assure optimum efficiency • minimize failures; threats to safety, direct and collateral damage to equipment • safely reduce / eliminate PM (Planned Maintenance) • identify chronic defects, individual and class • provide guidelines for new equipment purchase • effectively prioritize decreasing resources
Part of larger process: • Optimized lifetime ownership: • begins at design • includes procurement, installation, operation and maintenance • CBM, PM and operate-to-failure utilized in optimum combination • financial prioritization -- EVA (Economic Value Added) • necessitates training and focus on quality • demands continuous improvement • information is crucial
Focus on high value activities: • Understand business drivers • requirements to gain business acceptance • Prioritize scarce resources • what and where are most costly problems • Prognosis, remaining lifetime • functional failures • optimum time to repair, including financial • spare parts (logistics) management • Statistical mining to identify common defects • Increase reliability
Integrate information systems: • Construct strong, common platform and interoperable communication conventions to serve as a foundation and enabler for decision support • Demand open access • Utilize optimum cost commercial technology and components • shared infrastructure • sensors • software tools
Improve value and productivity: • Increase reliability • design changes to eliminate defects, chronic problems and maintenance requirements • improve materials and coatings • Maintainability • safe, quick access • simplify tasks • Task instructions • safety precautions, spare parts, tools
Pathways being pursued: • Increasing awareness of relationship between economics, business drivers and value -- EVA (Economic Value Added) • Greater integration between and within machine control and information systems • use of existing infrastructure • Integrated CBM to include more variables • Utilize CBM to safely extend interval and/or eliminate some PM
Pathways being pursued, cont.: • Increase reliability • prioritized RCFA (Root Cause Failure Analysis) • Improved metrics -- EVA • Open systems: • OPC (OLE for Process Control) • STEP (STandard for Exchange of Product model data -- ISO 10303) • MIMOSA (Machinery Information Management Open System Alliance -- www.mimosa.org)
Opportunity: • Providing accurate, actionable decision support to multiple levels in an organization is largest unfilled opportunity in manufacturing and process industries. • planning and scheduling (MRP/ERP) • process operations and control (DCS) • maintenance, Asset Management • Constructing an open platform and interoperable infrastructure on which to build comprehensive decision support is greatest unfilled requirement for effective CBM.
Challenges and barriers: • Terminology differences • CBM • diagnostics • Cultural differences between communities • difficulty to accept alternate perspectives • Demonstrate value in a cost directed world • economic model -- EVA • mission effectiveness • spare parts management • Installed cost per machine for permanent monitoring • manual CM: <$100-150/machine/year
Challenges and barriers, cont. • Inter and intra community coordination • align concepts and objectives (CBM, CMMS, Control, Enterprise Information Technology) • agree on information model and boundaries • interoperability standards • Detail required for effective CBM • array, image • Technology timing • overrun technical capability -- risk • utilize commercial components
Future direction: • Open, interoperable systems • Data fusion • Computer-aided decision support • self learning • built-in economic alternatives • Standardized, high volume, components • commercial platform • low cost sensors • embedded monitoring • Distributed intelligence • smart sensor • Wireless sensors
Summary: • Reduce lifetime cost of ownership • eliminate defects • design improvements • improve maintainability • optimize lifetime care -- CBM, PM, run-to-failure • demonstrate results in terms of compelling financial benefits
Summary, cont. • Focus on highest value requirements • economic model • reduce installed cost of permanent monitoring • distributed intelligence • smart sensor • Open systems • Computer-aided decision support • accept complex, broad source information • built-in economic analysis • actionable alternatives with financial options
Summary, cont. • Use developing industry components and standards • Windows NT, COM/DCOM, Java COM -- Component Object Model DCOM -- Distributed COM • industrial infrastructure, programming, C++ • OPC, STEP, MIMOSA OPC -- OLE for Process Control STEP -- Standard for Exchange of Product model data ISO 10303 MIMOSA -- Machinery Information Open Systems Alliance • smart sensors; pIEEE 1451.1,2,3,4 • Safety Instrumented Systems / Safety Integrity Level dIEC 61508
Some closing comments: • Infrastructure before components • Connectivity does not assure communications • telephone -- language • Interoperability drives technology • Capitalizing on opportunity creates far more value than cost avoidance • profit center -- cost center • Technology unification is mandatory