Docstoc

railtechnology

Document Sample
railtechnology Powered By Docstoc
					  Rail Technology Unit




RTU Consultancy & Research

Presentation to:
by: Julian Stow / Simon Iwnicki
Overview

1.Introduction to RTU
2.Expertise
    – Dynamic modelling
    – Test facilities
    – Engineering Standards Development
    – Training
3.Consultancy Project Examples
4.Current Research
5.Other Activities
6.Clients
Background

• Major research project for Railtrack in 1997
• Rail Technology Unit formed in February 1998

• Well known and respected within the industry

• Wide range of contacts at senior level

• Winning major contracts in competitive market

• Links with all relevant UK Universities and broad range of
  academic contacts – European and Worldwide
People

Management Team       Dr Simon Iwnicki (RTU Manager)
                      Julian Stow
                      Dr Paul Allen

Research Fellows      Dr Javier Perez
                      Dr Hamid Bayati
                      Dr Bo Liang

Research Associates   Dr Sin Sin Hsu
                      Adam Bevan
                      Dr Gang Xie

Research Students     Leonardo Gualano
                      Yann Bezin
 Expertise

                       Core expertise:

                       •     Railway vehicle suspension dynamics
Vehicle Dynamics              – Computer simulation
                              – Lab and field testing
                                                                               Safety
                                                                             & Standards
                       •     Wheel-rail interface modelling
                              – Profile design
                              – Wear
Wheel/Rail Interface
                              – Rolling contact fatigue
Engineering

                                                                    Research &Training


                                                                     Expert Services/
Lab Test & Instrumentation                                         Project Co-ordination
Dynamic Modelling

Expertise in:
•Evaluating vehicle-track
interaction

•Studying track and substructure
degradation

•Assisting with vehicle design /
optimisation

•Problem solving on existing fleet

•Derailment analysis
Dynamic Modelling


• ADAMS/Rail
• Vampire
• Simpack
Wheel - Rail Interface


         'Contact patch for UIC60 Rail & S1002 Wheel'
         uy [mm]:          0.00
                                                1                1
         Coord. rail mm                   -2.89              -2.89
         Penetrationmm                    0.072              0.072
         Load              kN            100.01             100.01
         Max.press MPc                   587.24             587.24
         Cont. Stiff. MN/m               2074.82            2074.82




                    30.0          10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -0.60
                                            1                1
       Coord. rail mm                 -0.42              -5.57
       Penetration mm                 0.072              0.077
       Load              kN           99.96              99.99
       Max.press MPc                 582.47             664.46
       Cont. Stiff. MN/m             2073.67            1942.57




                  30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -1.60
                                            1                1
       Coord. rail mm                  2.31              -9.70
       Penetrationmm                  0.080              0.078
       Load              kN           99.99             100.00
       Max.press MPc                 700.49             665.33
       Cont. Stiff. MN/m             1875.37            1921.18




                  30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -2.60
                                            1                1
       Coord. rail mm                  3.48             -12.68
       Penetrationmm                  0.087              0.096
       Load              kN          100.00             100.03
       Max.press MPc                 824.70             1009.92
       Cont. Stiff. MN/m             1724.18            1569.57




                  30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -3.60
                                            1                1
       Coord. rail mm                  4.13             -14.23
       Penetrationmm                  0.090              0.101
       Load              kN          100.01             100.01
       Max.press MPc                 891.34             1139.66
       Cont. Stiff. MN/m             1657.89            1488.66




                  30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -4.60
                                            1                1            2
       Coord. rail mm                  4.52             -15.82    -25.89
       Penetrationmm                  0.093              0.085     0.046
       Load              kN          100.00              76.82     23.20
       Max.press MPc                 938.32             1063.17 1215.93
       Cont. Stiff. MN/m             1616.06            1353.86   753.25




                  30.0        10.0      -10.0   -30.0             -30.0       -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -5.60
                                            1                1
       Coord. rail mm                  4.75             -26.91
       Penetrationmm                  0.095              0.123
       Load              kN          100.01             100.02
       Max.press MPc                 975.86             2032.64
       Cont. Stiff. MN/m             1585.60            1221.79




                  30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:      -6.60
                                            1                1
       Coord. rail mm                  5.66             -34.43
       Penetrationmm                  0.100              0.123
       Load              kN          100.01             100.04
       Max.press MPc                 1097.76            3419.54
       Cont. Stiff. MN/m             1503.36            1219.43




                  30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Wheel - Rail Interface


       'Contact patch for UIC60 Rail & S1002 Wheel'
       uy [mm]:   -7.60
                                         1                1
       Coord. rail mm               5.25             -33.60
       Penetrationmm               0.102              0.132
       Load           kN          100.00             100.05
       Max.press MPc              1144.06            3700.96
       Cont. Stiff. MN/m          1477.33            1134.76




               30.0        10.0      -10.0   -30.0             -30.0   -10.0   10.0   30.0
Vehicle Model Library

Bogie         Vehicle
BT10          Mk3 coach
BT41          Mk4 coach
BP10          Class 43 loco
              Class 91 loco
BX1           Class 314 / 507 / 508
BT8 / BP14    Class 312 / Mk2 coach
BT13 / BP20   Class 317 + many others
Mk6 / B5      Class 423
P4 / T4       Class 158
Y25 / Y33     FIA container wagon (+ various other)
TF25          JMA stone hopper
LTF25         JMA stone hopper
3 pc          BYA coil carrier
Leaf spring   HAA MGR coal wagon
Leaf spring   Tope / Rudd Engineers wagon
Bombardier    Docklands B90 / B92 stock
Met-Cam       Glasgow Underground motorcar
Ansaldo T69   Centro Tram
Test Facilities

•Extensive laboratory facilities
•Site / vehicle Instrumentation and data
 collection
•Development of dedicated test rigs and
software
•‘Hardware in the loop’ testing
Test Facilities
Rolling Railway Test Rig

• 1/5th scale rolling railway test rig for study of lateral dynamics
• Scale speeds up to 400km/h
• Rollers excited using hydraulic
  actuators to simulate track inputs
• Can be fully instrumented to measure
  bogie response
• Applications include studying novel components
   or bogie designs
Engineering & Safety
Standards Development

•Development of evidence based
standards
•Computer modelling and physical
testing
•Data gathering and review
•Updating standards for new
technologies
•Peer review
Training Courses

• Vehicle Dynamics / Track Interaction

• Modelling Techniques

• Derailment
Consultancy Projects (1)

Recent projects:

•Effect of introducing new rolling stock on rolling
contact fatigue
•New vehicle safety acceptance
•Wheel-rail interface management for metro
systems
•Track geometry measuring system
•Developing kinematic gauging methods
•The effect of traction sanders on infrastructure
•Site testing of novel slab track
•Determining the causes of uneven wheel wear
Consultancy Projects (2)

Current projects:

•Development of an anti-RCF wheel profile
•Improving vehicle acceptance methods using
dynamic simulation
•Simulating the performance of switches &
crossings
•Wheel-rail interface management for light rail
(3 projects)
•Testing a replacement primary suspension
damper
Research

•University or industry led consortia

•UK Government or EU funding

•Worldwide contacts with railway engineering experts

•Specialist skills sourcing & project management

•Member of EPSRC ‘Rail Research UK’

•Virtual research centre: 9 Universities (Southampton, Birmingham,
Loughborough, Sheffield, Nottingham, Leeds, Newcastle, Imperial College and
MMU)

•Aims to focus UK research into improving the railway system
Current Research Projects
•‘TRAINS’ Project – 3 year EPSRC funded
collaboration with Birmingham University

•Research into rail vehicle wheel squeal –EPSRC
funded collaboration with Southampton University
ISVR (RRUK)

•Active control of rail vehicle wheelsets – HEFCE
funded collaboration with Loughborough/Leeds
Universities
Current Research Projects
•Applications of Neural Networks in the
railway industry


•Simulation of flexible track in the MBS
environment

    Actual
  Derailment                                        LINKS WEAKENED



                                                    LINKS STRENGTHENED
                                                                                       NO
                                                                         YES
          Validation

                                             vehicle specific
                                             neural network
                                               vehicle specific
                    Labeled
                   track data                  neural network
                                                 vehicle specific             Correctly
                                                 neural networks              predicted
  simulation                                                                      ?
                                  signal
                                processing

                   track data                                        derailment
  TRV                                                                 derailment
                                                                      quotient
                                                                       derailment
                                                                       quotient
                                                                      quotient etc..
Other Activities

Publications
•50+ publications in journals and international conferences

•Regular contributors to UK railway industry conferences

Conferences hosted

•Railway vehicle simulation software conference 1999

•Freight vehicle design conference 2000 and 2001

Industry representation

•Simon Iwnicki:

    –member of VT-SIC Technical Advisory Group

    –Co-editor IAVSD Vehicle System Dynamics and I.Mech.E JRRT

    –member I.Mech.E Railway Division Technical Committee
Client List
Thank You

				
DOCUMENT INFO
Shared By:
Categories:
Stats:
views:108
posted:1/8/2009
language:English
pages:30