Design And Specification For Freight Car/Wagon (Part2)

II. TECHNOLOGY SELECTION
II.1 Under Frame
There are 3 Types Of Under frame :
 Under frame with Strengthen Construction (Type A)
 Under frame with Strengthen (Type B)
 Under frame For Special Load (Type C)

Design Parameter : Smallest Deflection, Absorbable of Impact Load and Easy Maintenance
II.2 Car Body
 To built for opened car and covered/box car
 Non monologue Type (The under frame support Uniformly or Centrally Distribution Load)
 More than simple compare with the the passenger car body
 Car body Design to fit in with Commodities shall be Moved
Design Parameter :
 To Fit in With Commodities Moved
 Rigid
 Easy Maintenance
II.3 Bogie
a. Parameter Design :
 Type of Bogie
 Riding Quality
 To fit in with track condition
 Max axle load
 Max operating speed
 Wheel sets Type (Wheel, Axle and Bearing)
 Wheel Tread and Flange Profile
 Smallest the wear of both Wheel and Rail
 Domestic Product for Frame Bogie

a. There are many types of Bogies :
 2 Axle with leaf spring (Old Type)
 Rigid bogie with leaf spring (Old Type – Romania)
 Three Pieces Bogie :
 Barber (Japan – Korea – Canada)
 Ride Control (Japan – Romania)
 Barber Baraga for 5X9 and 5 ½ X 10 S2HD INDON
 Steering Bogie (Sample Test)
 Gloucester and Chevron (Sample Test)
C. Wheel sets and Bearing
 Type of solid wheel : Cast Steel & Forged Steel
 Wheel Diameter : 774 mm & 850 mm
 The axle shall be as steel forged axle (SFA)
 Bearing :
 Cartridge type with Class C (5x9) and Class D (5 ½ x 10) NFL Type
 Ball and Cylindrical Roller Bearing
 Plain Bearing (Old Type)

II.4 Coupler
a. Parameter Design :
 Train gross loads
 Max operating speed
 Track geometry and Condition
 Compatible and Interchangeable
 Max Buff and Draught force (Compression and Tension Force)
 Domestic Product
 Knuckle contour – AAR 10A Standard

b. There are various type of coupler are as follow :
 Endicott type
 Sumitomo type
 Claw type (Old model)
 Tight Lock type
 Fixed and Rotary type (For 18 tons axle load)

c. The coupling device shall have coupler, coupler yokes and draft gear.
II.5 Door (Loading and Unloading facility)
a. Design Parameter :
 Easy to operate both loading and Unloading activities
 Minimum water leakages
 Safe For Operator


b. Type of Door :
 Sliding Door
• Inside sliding door
• Outside sliding door
• Single or twin doors
 Swing door with Hinge
 Bottom Discharge
 Telescopic car body
 Sliding Roof
 Removable Roof
II.5 Air Brake
a. Design Parameter :
 Brake type
 Stopping distance
 Hand brake requirement
 Specification of individual component
 Compatible and Interchangeable
 Maximum gradient
 Domestic product with license of manufacture

b. Main component :
 Distributor valve (Control valve)
 Brake cylinder
 Slack Adjuster
 Air Reservoir
 Empty Load Device

c. Manufacture :
 Knur
 Westinghouse (WABCO)