Guiding and bearing

Transcription

Guiding and bearing

EVOLUTION OF TURNOUTS TO LOW TCO SYSTEMS
Franz SODIA
Heinz OSSBERGER
MEng, MBA, MIEAust, CPEng
CEO voestalpine VAE Railway Systems
MEng
SVP Corporate Engineering voestalpine VAE
Director, Board Member voestalpine VAE Railway Systems
AusRail Plus 2013 Sodia Ossberger
Main drivers for low TCO
Low operational costs

initial quality
 high
track availiability
 long lifetime

modular design
 function
based
 application based
Function: Guiding and bearing
Initial quality
Higher Initial Quality
extends
MAINTENANCE
INTERVALS
LIFETIME
Quality
HIGH Q0
LOW Q0
intervention
level
time
maintenance
maintenance
maintenance
Highest initial quality: Fully pre-assembled T/O
Multibody dynamic simulation


Theoretically: Change of lateral acceleration infinite
Practically: High impacts
a
Kinematic Response
Dynamic Response
L
Latl Force L ft Wh Ax le 1 (Newtons x1000)
Multibody dynamic simulation
Clothoid T/O 136RE10-4000’/2100’/4200’-#20 tangential, new proposal
T/O 133RE-680-#20, tangential
AREA Standard Turnout #20, 133RE rail
Distance along the track [ m ]
Asymmetrical clothoids
R1
R2
a, k
2
1
acceleration a and curvature k are
increasing linear along the way x
R3
3
x
Verification of simulation by field tests
kN
105
Vertical Forces at 178kph on axle 3
1. Turnout
100
2. Turnout
95
1. Crossing
90
85
80
75
70
2. Crossing
65
60
Simulation - Measurement
55
7.25
7.30
7.35
7.40
7.45
7.50
7.55
7.60
7.65
km
Rail profiles for switches and wing rails
Kinematic gauge optimisation

Sinusodial run because of cone shaped wheels
b
r1
r2
b
r

Sinusodial run because of cone shaped wheels

In turnouts the sinusodial run is interrupted, causing wear


Stockrail gauge line under controlled variable gauge widening
Thicker tongue rail provides additional wear reserve

KGO enables sinusodial run in turnouts by active kinematic stearing
Material: Wear, Corrugation and RCF
Material: Austenitic Manganese Steel
speed [km/h]
Guiding and bearing: Application based design
Tailor made for load and speed
200
MONOBLOCK
SWINGNOSE
140
COMPOUND
MONOBLOCK
100
EXPLOSIVE
DEPTH
HARDENED
FABRICATED
15
25
35
40
5
10
100
150
axle load [t]
annual load [mgt]
Guiding and bearing: Application based design
Selection parameters for SNX
MAXIMAL TRANSITION AREAS PER DIRECTION
2
2
3
3
CAST
WELDED
CRADLE
LONG WINGRAIL
2
Turnout specific functions
Locking, Switching, Detecting, Monitoring
Rodding and asymmetrical vibrating masses
Damaging ballast and avoiding tamping
Evolution step 1:
Encapsulate locking systems
Evolution step 1:
Encapsulate locking systems
Evolution step 2:
Transfer rodding in inbearers and enable tamping
Evolution step 3:
Transfer switch machine in a single inbearer
Evolution step 4:
Get rid of the inbearers and asymmetrical masses
Evolution step 4:
Get rid of the inbearers and asymmetrical masses
Evolution step 5:
Remote monitoring, condition based maintenance
data
maintenance
+ failure level
+ tolerance
0
- tolerance
- failure level
time
costs
Condition based maintenance
time
costs
Scheduled maintenance
time
Example for latest state of the art evolution
> 40 t thick web KGO switch machine on sleeper
Financial impact
Calculating TCO
Purchase costs
Operational costs
Financial impact
Investment decision methods
Financial impact
Comparing two different solutions: NPV
years
Financial impact
Comparing two different solutions: WACC
Conclusion
Evolution or intelligent design?

Intelligent design selected by the user.
„Innovation is
bringing inventions successful to the market“
Josef Alois Schumpeter,
1883 - 1950

Guiding and bearing

Transcription

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