EPRDV-Integrated Engineering Solutions

Experience the eprdv-Engineering Difference:

Design & Engineering Solutions through Science Multiphysics
committed to your success at an international and national level
innovative in the corporate culture and in global operation
Innovations Advanced Technology Leadership Awards
Aircraft design process
Aircraft design process & Development process
Airplane Parts and Function
  • Cockpit: Commabd and Control
  • Fuselage: Hold Things Together - Carry Payload
  • Slats: Increase Lift
  • Spoller: Change Lift, Drag and Roll
  • Alleron: Change Roll
  • Flaps: increase Lift and Drag
  • Elevator: Change Pitch
  • Rudder: Change Yaw
  • Vertical Stabilier: Control Yaw
  • Horizontal Stabilizer: Control Pitch
  • Winglet: Decrease Drag
  • Wing: Generate Lift
  • Turbine Engine: Geberate Thrust
  • Probeller: Rotating blade located on the front of the airplane
Runway Safety and Pavement
Types of runway safety incidents include:
  • Runway excursion
  • Runway overrun
  • Runway incursion
  • Runway confusion
  • Runway undershoot
Runway Pavement
  • Pavement surface:
    • Maximize friction for wheel or aircraft tires braking
    • Dry Runway Friction
    • Rejected Take Off - Take-off and Landing Performance - En-route Performance
    • Runway Surface State: the depth of water in the touchdown zone, or the measured or observed braking action.
    • Minimize hydroplaning following heavy rain
    • Grooving-Surfaces to be surface water film flows into the grooves and the peaks between grooves will still be in contact with the aircraft tires.
  • Pavement subsurface drainage and underdrains: help provide extended life and excellent and reliable pavement performance
  • Pavement Surface type codes:
    • ASP: Asphalt
    • BIT: Bituminous asphalt or tarmac
    • BRI: Bricks (no longer in use, covered with asphalt or concrete now)
    • CLA: Clay
    • COM: Composite
    • CON: Concrete
    • COP: Composite
    • COR: Coral (fine crushed coral reef structures)
    • GRE: Graded or rolled earth, grass on graded earth
    • GRS: Grass or earth not graded or rolled
    • GVL: Gravel
    • ICE: Ice
    • LAT: Laterite
    • MAC: Macadam
    • PEM: Partially concrete, asphalt or bitumen-bound macadam
    • PER: Permanent surface, details unknown
    • PSP: Marston Matting (derived from pierced/perforated steel planking)
    • SAN: Sand
    • SMT: Sommerfeld Tracking
    • SNO: Snow
    • U: Unknown surface
    • WAT: Water
Runway Surface Friction:
  • Runway Surface Regulatory Requirements
  • Runway Surface Texture: Macrotexture - Microtexture
  • Runway Surface Friction Measurement and Prediction in Winter Operations
  • Runway and the Effect of Rubber Deposits and Painted Markings
  • Runway Aquaplaning and Types of Aquaplaning: Dynamic aquaplaning,Viscous aquaplaning,Reverted rubber aquaplaning
Our Innovative Technologies:
Aircraft design process
Building Information Modeling - BIM
  • Design constraints:
    • Purpose
    • Aircraft regulation
    • Financial factor and maket
    • Einvironmental factors
    • Safety
    • Protoytye development & Modular design strategy
  • Design optimization
  • CAD-Computer aided design and modelling
  • CAE-computer aided engineering and modelling
  • Validation and optimisain
  • Design aspects
    • Wing design
    • Fuselage
    • Propulsion
    • Weight
    • Structure
  • Design process and simulation
    • Conceptual design
    • Preliminary design phase
    • Detail design phase
    • Delays
  • Programn development
    • Re-engine
    • Fuselage stretch
  • Runway construction
    • Load Classification Number (LCN Value)
    • Load Classification Group (LCG)
    • Aircraft Classification Number (ACN)
    • Pavement Classification Number (PCN)
    • Pavement types (rigid-more 3.5MN/m2 or flexible or Composite pavement)
    • Runway exceööent drainage capabilities-aquaplane-thin-film of water
    • Types of subgrads -Material- capping layer - limitation of pavementlevel
    • Maximum tyre pressure for the pavement
    • How the strength assessment has arrived at technical design
    • How the strength assessment has arrived at experience-in-use

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