INNOVATIONS IN COACH DESIGN - AITD. Innovations in Coach Design.pdfINNOVATIONS IN COACH DESIGN . LHB...
Transcript of INNOVATIONS IN COACH DESIGN - AITD. Innovations in Coach Design.pdfINNOVATIONS IN COACH DESIGN . LHB...
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INNOVATIONS
IN
COACH DESIGN
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LHB DESIGN
STAINLESS STEEL COACH
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Trains with RCF built LHB coaches
New Delhi - Mumbai Rajdhani Express
New Delhi - Mumbai August Kranti Express
New Delhi - Howrah Rajdhani Express
New Delhi – Sealdah Rajdhani Express
New Delhi – Patna Rajdhani Express
New Delhi – Lucknow Shatabdi Express
New Delhi - Bhopal Shatabdi Express
New Delhi – Amritsar Shatabdi Express
New Delhi – Kalka Shatabdi Express
New Delhi - Jammu Shalimar Express(One Rake)
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LHB Coaches
Shatabdi Chair Car
Rajdhani Sleeper Coach
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LHB Coaches (Chair Car)
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LHB Coaches (Ex. Chair Car)
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Stainless Steel Shell
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Shell structure
X2 CrNi12 – Ferritic Steel (SS409)
X5 CrNi1810 – Austenitic Steel (SS304)
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Side Wall - Interlocking Joints
Positive interlocking between all horizontal and vertical
members
Better strength, reduction of side wall thickness to
60mm from 90 mm, better geometrical integrity
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• End wall overhangs
beyond head stock
• Releasing more space
inside
• Reducing space and
hence wind resistance due
to turbulence between
coaches
• Gap between endwalls is
300 mm only as against
830 mm in conventional
coaches
Endwall – extended
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Laser Cutting
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Roof – corrugated
Corrugated roof sheet spot welded
to z-section roof arches
Uniform height of arches along it’s
length
Roof weighs only about 1000 kg as
against 1300 kg in conventional
coach
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Roof – Spot Welding
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Superior Insulation
Sound insulation “Baryskin V60db” or eq.
Sound insulation PU paints on full coach shell interior
Heat insulation “Resonaflex” (diagonally glued
pleated cellulose acetate film, light
weight, high thermal resistance) on side wall & floor
Glass wool on roof and side wall (above window)
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Use of composite materials
Aluminium honey-
comb for partitions
“Alucobond” lavatory ceiling panel
3M Pressure locks
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Emergency openable window
A handle connected to
the rubber profile opens
the glass unit of the
emergency window
Four units provided in
each coach to allow
emergency evacuation
of passengers
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Lavatory interiors
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Controlled Discharge Toilet System
• The waste gets accumulated in retention tank
• Speed sensed through WSP
• Discharge valve opens above 30KMPH
• Discharge after every set no of flushes (0-15, programmable)
• Flushing with pressurised water
• Overflow pipe provided in retention tank
• Slide valve on top of tank prevents foul smell from entering the lav
Waste Retention Tank
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Luggage rack (Chair Car)
Made from aluminium extrusions and tempered safety glass
Can withstand distributed load of 1000 N (100 kgs) per metre length and point load of 850 N (85 Kgs) as per UIC 566.
Halogen reading lights, for individual seats, fitted into outer extrusion and wiring hidden by polycarbonate cover
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Salient features – FIAT bogie
Eurofima Y-frame design
Fit for 180 kmph
No metal wearing parts
Nine dampers per bogie
for improved ride
Rubber suspension
components
Cartridge Tapered Roller
Bearings
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Under Water Plasma Cutting
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Bogie frame – robotic welding
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Rubber Pad
Spring Guide
Outer Spring
Inner Spring
Bump Stop Lower Spring Guide
Primary suspension
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Lateral Damper
Lateral Bump
stop
Longitudinal Bump stop
(With Bolster removed)
Secondary Suspension
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GARIB RATH
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Garib Rath
Purpose of such trains is to provide facility of
AC travel to the common man.
First train flagged off by Prime Minister on 4th
Oct’ 06. Sixteen such rakes have been
delivered to railways.
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Garib Rath Rake
12 AC 3-Tier coaches
each with 78 (normal - 64) passengers
4 AC Chair Cars ( manufactured by ICF)
each with 102 (normal - 74) passengers
2 High Capacity Power cars
with compartment for disabled passengers
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GARIB RATH AC 3T
Capacity of 78
passengers to seat
and sleep
Comfortable seats
Better aesthetics
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EXPORT OF COACHES
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Myanmar Railway Coaches
Roof mounted top loading SS water tank
Stainless steel luggage racks
Revolving chairs in upper class day coach.
Cushioned seats in lower class
day coach also.
PA room in Brake Van
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COACHES FOR MALI & SENEGAL
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MG/AC Chair Car
Ergonomically designed
PU cushioned chairs
Roof mounted AC units
Wider windows for
panoramic view
Underslung water tank
Aesthetically pleasing
SS luggage racks with
reading lights
UIC vestibule
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Non AC Chair Cars
56 ergonomically designed PU cushioned chairs
PA system
UIC vestibule
Mobile charging socket
Al. water tanks having capacity of 1200 ltrs.
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Luggage cum Brake Van
Luggage area
Guard area
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AC Restaurant Car
Provision of Refrigerator, cooking range, hot
case, water boiler, microwave oven, etc in
kitchen
24 dining chairs with table in Dining area
Provision of granite-top counter, deep freezer,
bottle rack,
7 nos. of elevated chairs & music system
below counter in bar area
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AC RESTAURANT CAR
DINING AREA
KITCHEN
BAR
WASHROOM
LAVATORY
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AC RESTAURANT CAR
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SPECIAL PURPOSE COACHES
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POSTAL VAN COACHES FOR DEFENCE
Special purpose vehicles
REFRIGERATED VAN SELF PROPELLED ACCIDENT RELIEF TRAIN
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SCIENCE EXPRESS TRAIN
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SCIENCE EXPRESS TRAIN
Turned out in association with Max Planck
Society of Germany
Inaugurated by Hon’ble Prime Minister of India
and Her Excellency, The Chancellor of
Germany on 30.10.2007 in Delhi.
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SCIENCE EXPRESS TRAIN
AC 3 Tier EOG Shell with no lavatory
Pure white panelling covering windows
Interior by Max Planck
Exterior Painting as per requirement of Max
Planck
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SCIENCE EXPRESS TRAIN
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OTHER DESIGN INNOVATIONS
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Longitudinal Middle Berth
Additional berth on longitudinal side
Retro-fitment possible in existing coaches
The berth can be folded during daytime
Un-obstructed view of windows when berth is in
folded condition
Sleeping capacity to increase by 8 & 9 berths in
existing AC 3 T and SCN coaches respectively
Sleeping capacity to increase to 78 in Garib
Rath AC 3 T coaches alongwith provision of
linen room and mini-pantry
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Longitudinal Middle Berth
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Modified SLR (SRD) Coach
A variant designed in which luggage
compartment has been eliminated
For use in trains where luggage loading is not
significant
Seating capacity increased from 20 to 60
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Composite AC 2T + AC 3T Coach
Sleeping capacity of 24 and 36 passengers in
AC 2-Tier and AC 3-Tier area respectively
Provision of western style toilet on both ends
Provision of linen rooms for both the areas
Use of AC 3-Tier shell giving better head space
in 2-Tier area
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Composite First AC+ AC 3T Coach
Sleeping capacity of 10 and 33 passengers in
First AC and AC 3-Tier area respectively
Provision of linen rooms for both the areas
Use of AC 3-Tier shell
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Biological Toilets
To have environment friendly
toilets in coaches Biological
toilets have been fitted on
one ACCN coach in April 07
The toilets tried out in Prayag
Raj Express between New
Delhi-Allahabad
Fitted in one rake of Reva
express.
Works on the principles of
decomposition of waste by
the bacteria proliferating.
The effluent is disinfected
before it is discharged.
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Coaches with Improved Interiors
Upholstery in pleasing shades.
Matching PVC with mosaic pattern with better
wear resistance and fire retardancy used
Matching LP sheets with better fire retardancy
Use of Recron as a cushioning material for fire
retardancy
Better fire retardancy for the upholstery
Specifications for fire retardant PVC, LP
SHEET, NFTC, upholstery developed by RDSO
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Coaches with Improved Interiors
Middle berth in
folded position
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Toilets with SS paneling
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Screw-less dull satin finish stainless
steel panels inside
LP paneling outside
Concealed plumbing
Pivoted door and door frame as one assembly
Aluminium Composite ceiling panels in roof
Provision of health faucet, controlled discharge tap,SS soap dispenser
Anti slip wear resistant coating on floor and skirting instead of PVC flooring sheet
Toilets with SS paneling
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Better ride index,
especially lateral
Constant height of air spring under varying loads. Hence, problem of insufficient clearances due to overloading is eliminated.
Same suspension can be adopted for different variants.
Fitted on one GS coach
Cleared oscillation trials
Air Springs in conventional
and LHB type coaches
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Low Cost LHB design
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LHB Shell on ICF Bogies
(With Air Spring)
LHB Features retained
Stainless steel shell
LHB design windows
Fire barrier sliding vestibule door
CDTS
Furnishing and Electrics as in conventional ICF coaches
Oscillation trials completed (Fit to run at 130 km/h)
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LHB Shell On ICF Bogies - Advantages
Stainless steel shell
Lower maintenance due to use of stainless steel
Coach cost only marginally higher than that of
existing coaches
Higher carrying Capacity
Similar maintenance practices
An alternate to SG variants
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LED BASED LIGHTS
Provided in one ACCN coach
Almost all lights except berth reading lights
Trials by M/S Srikon Enterprises, Mumbai in
collaboration with M/S Richardson, Malaysia
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Crashworthy Features
Designed to absorb crash energy in the end
Crash tests conducted upto 60 km/h
Specially designed energy absorbing elements-
Buckle initiators
Primary and Secondary Absorbers
(Honey Comb)
Draft Gears
Total energy 2.4 MJ
Absorbed 1.3 MJ (54%)
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Crashworthy Features
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BLC Container Wagons
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BLC Container Wagons
System of Wagon Operations
THE Rail head at Terminal (ICD, Tugalakabad)
Train Examination and repair
and material trolley pathways Welding points
for repairs
Compressed air supply for
brake testing
Train under Examination
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CONCOR – Principal assets
Network of 56 terminals
Fleet of over 5430 high speed wagons (BLC/BLL)
Fleet of 1357 BFKN wagons
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Problems with conventional wagons
With the increase in height of ISO containers from 8’-6” to 9’-6”, these would be treated as Over Dimensional Consignment
Unable to provide guaranteed & faster transit times for export/Import containers synchronizing with Ship sailing schedule The maximum speed of these wagons is 75 KMPH
only
Lower precedence vis-à-vis Mail/Express trains
Poor reliability
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BLC Container Wagons
Small Dia Wheel
Use of Automatic
Twist Lock
Bolster height
low
Spring loaded side
bearers
Load sensing VTA
valves Anti pilferage
device on wagon
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Salient features of BLC wagons
Low platform height wagons of 1.07m to carry 20 feet
and 40 feet ISO containers
without infringing Indian Railways X class Broad Gauge moving
dimensions
100 kmph operation capability.
Automatic container twist locks for automatic locking
and unlocking of Containers during loading and
unloading.
Load sensing device to obviate manual resetting of
load/empty device handle of wagon at loading/unloading
point
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BLC Container Wagons
Automatic Twist
Lock
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Fabricated body with High tensile steel to IS 8500 Fe 570 B Cu instead of mild steel to ensure lightweight design and more pay load capacity
Reduction in coupler forces by use of slack free draw bar Reduced wagon damage, Smooth acceleration and
deceleration
Two stage vertical suspension to provide higher static deflection in empty condition
Vertical suspension in loaded condition is stiffer
Load proportional friction damping arrangement using stiffer snubber springs
Load distribution between centre pivot and side bearers has been optimized to avoid hunting.
Salient features of BLC wagons ..contd.
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BLC Container Wagons
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The IRS CBC at height of 1105 mm is technically not desirable in low height container wagons the eccentricity between the draft line and the centre
of U/Frame, will result in momentary off loading of certain wheels
2 A-Cars having raised ends with CBC couplers at a height of 1105 mm and connected with 3 B-Cars in the middle through slackless draw bars at a height of 845 mm was adopted on optimum consideration of flexibility and use
Other Design features ..contd.
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BLC Container Wagons - Couplers
Slack less Draw Bar ( SDB)
: This is a semi permanent
coupler.
Normally not disconnected unless required for repairs .
Center Buffer Coupler ( CBC) :
Most commonly used coupler in wagons over Indian Railways and abroad.
SDB
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BLC Container Wagons
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Two stage automatic load sensing device (LSD) in each
of the bogies
operates when gross weight of the wagon crosses 40 tonnes
obviating the need for manual resetting of the handle and thus
expediting operating at terminal
Automatic twist lock is used
Minimizes time, manpower and operator errors
operates if a force of 600 Kg is exerted by the container
a force of 1000 Kg is required to unlock and release the
container
Other Design features ..contd.
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Mobile Bridge Inspection Unit
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Mobile Bridge Inspection Unit in use
Mobile Bridge
Inspection Unit
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FEATURES OF MBIU
Driver cab at both ends for flexibility in operation
Shacku coupler between two cars and provision of draw hook at ends for towing by loco
Air brake system
Provision of UIC vestibule between two cars
Provision of creeping mechanism
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Actual Demonstration of Platform Unit
(Manufactured at RCF)
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Actual Demonstration - of
Bucket Unit