Knowledge requirements for rolling stock maintenance

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Knowledge requirementsfor rolling stock
maintenance

• TU Eindhoven 3rd of May 2006

by Bob Huisman (b.huisman_at_nedtrain.nl) NedTrain -
Fleet Management Strategic Development
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NedTrain is part of the NS Group

• NedTrain provides
• Rolling Stock Maintenance, Cleaning and
  Overhauling

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Double goaleffectiveness and efficiency
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Goal 1 to maintain system functionality
(effectiveness)
How do functions evolute?
When is a functional failure to be expected?
Time
Yesterday
Today
Tomorrow?
What maintenance is required? When?
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Goal 2 to minimize means of production
(efficiency)
Fleet availability
Past
Future
Use of maintenance means of production
Past
Future
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Effective maintenancederive required
maintenancefrom technical conditionof
individual systemsby intelligent reasoning
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How to predict degradation and failure?
Function
Extrapolation
Functionality
enables/disables function
Cause-effect analysis
Component
Dimension, quantity
influences technical condition
Wear and tear modelling
Use
Cycles, energy
Now
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Complex interaction between use, components and
functions
Function A
Function B
Function C
Function D
Component 1
Component 2
Component 3
Component 4
Technical system
Usage
Incidents
Environment
Maintenance
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Component tree
Train
Consists of
Is part of
Coach
Coach
Coach
Boogie
Boogie
Motor
Wheel set
Wheel set
Subsystem
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Function tree
To remain on track
To drive
To accelerate
Requires
To decelerate
To transport passengers
To control climate
To offer comfort
To offer seats
To inform
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Relations between functions and components
To transport passengers
Train
To drive
Boogie
Energy supply
To remain on track
To accelerate
Wheel set
Motor
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RCM (Reliability-Centred Maintenance) analysis
Enable train driver to brake and to stop
Function
Triple valve leaks, caused by dirt
Root failure
Air pressure drops, coach does not brake, causing
lower train deceleration
Failure effect
Train at 140 km/h does not stop within 1000m
Functional failure
Failure does effect safety directly
Business consequence
Frequent test of brake system
Maintenance
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Complex cause-effect relations
Function
Function
Functional failure
Functional failure
Functional failure
Functional failure
Failure effect
Failure effect
Failure effect
Failure effect
Root failure
Failure effect
Root failure
Failure effect
Root failure
Root failure
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System design, maintenance engineering and
operation
Design of Technical system
Requirements, Environment, Use
Phase 1
Maintenance engineering
Maintenance plan
Expected conditions and use
Phase 2
Construction
Maintenance
Technical system
Technical system
Real life
Phase 3
Technical system
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Derive required maintenance continuously during
operation
Knowledge
Design, Requirements, Environment, Use
Technical system
Technical system
Technical system
Maintainer
Maintenance plan
Jobs
Configuration
Maintenance rules and job descriptions
Computer system
Mimic model (not perfect)
Mimic model (not perfect)
Mimic model (not perfect)
Observer and interpretator
Configuration
Technical status
Synchronisation
Predictive model (not perfect)
Predictive model (not perfect)
Predictive model (not perfect)
Expected use
Expected status
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Implementation model
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Ontologies en RDF
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Efficient maintenancederive maintenance
schedulefrom required maintenanceand
availability of means of productionby
intelligent reasoning and negotiation
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Scheduling manufacturing orders
Supplier
Manufacturing
Supplier
New products
Supplier
Production Delivery orders
Backwards scheduling (Pull)
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Traditional rolling stock maintenance scheduling
Supplier
Maintenance production
Maintained products
Supplier
Technical condition
Production order
Local scheduling
Arrival Inspection orders
Scheduling (Push)
km-counter
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Future maintenance scheduling
Technical condition
Maintenance plan
Transport operations
Required maintenance
Required staff, shop and stock
Availability of staff, shop and stock
Maintenance schedule
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Rolling stock condition based maintenance
scheduling
Supplier
Maintenance production
Maintained products
Supplier
Production Delivery orders
Technical condition
Backwards scheduling (Pull)
Generate maintenance required
Request
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Maintenance scheduling by a Multi Agent System
(Society)
Maintenance rules
Configuration
Agent (train )
Agent (depot )
Agent (train )
Intelligent agent (train )
Intelligent agent (operator )
Intelligent agent (depot )
Co-ordination
Negotiation
Status
Availability
Time table
Work orders
Transport orders
Train
Depot
Train
Train
Depot
Operator
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Where do we need knowledge of operation?
Strategic (Rolling Stock, Locations, Contracts)
Government, Authorities
Performance Requirements
Fleet Performance
Railway Operators
Tactical (Maintenance Plans, Means of
Production, Organisation)
Rolling Stock Manufactures
Maintenance Plans
Performance of Rolling Stock and Maintenance
Results
Operational (Maintenance Planning and Control)
Infrastructure Managers
Traffic Control
Operation Data
Diagnostic Data
Inspection and Maintenance Orders
Technical Condition of Rolling Stock
Depot / Workshop (Performing Maintenance)
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Thanks for Your Attention!
Any questions?