Introduction Single Lift Dock Gantry Twin Lift Dock Gantry Offshore Lattice Dock Pedestal Ship Pedesatal Tower Crane Truck-Mounted Telescopic Truck-Mounted Lattice Ship Gantry Rubber Tire Gantry Stationary Configuration Rover Configuration MidSize Configuration Portable Configuration Crane Customization

Rubber Tire Gantry Crane Simulator

This module simulates a Rubber-Tire Gantry (RTG) Container Crane. The crane simulated is capable of stacking up to 7 stacks of 20- or 40-foot containers 5 high. The specifications on this crane include variable hoist speed, trolley speed, and hoisting capacity.

General Characteristics:

• Realistic control stand and control panels
  
• 3-axis hydraulic motion base that provides sensation of movement and motion, jolts from collisions, crane depression as a heavy load is lifted, bumps from uneven rail gaps, and the many other jolts and vibrations of normal crane operations
  
• Instructor's station with display of student view
  
• Surround sound effects including engine/motor engaging and disengaging, radio communications with foreman (instructor), wind, collision, and miscellaneous environmental sounds
  
• Variable weather conditions including wind (variable speed, direction, and interval), sunny conditions where sun is fixed and shadows are cast realistically, and cloudy conditions with no shadows for depth cueing
  
• Real-time photo-textured 3-dimensional graphics
  
• Accurate representations of crane environment from the operator's field of vision
  
• Realistic crane capacities and limits

Operating Procedures and Characteristics:

• Traveling and steering of RTG for alignment when lifting or decking containers from and to the stacks
• Stopping and removing swing from head
• Adjusting spreader for 20 and 40 foot containers
• Loading and unloading on a pin chassis
• Loading and unloading on bombcarts
• Steering container with skew for clean landing on bombcart
• Stacking up to five 20 and 40 foot containers with proper alignment
• Landing spreader on container and locking on
• Lifting container from a stack
• Decking container to a stack
• Releasing a container
• Simultaneous hoisting and trolleying

Visual Effects and Graphics Display:

• A forward field of view with approximately 50 degrees of horizontal view
• Realistic representations of crane structural members
• Load swing as a result of collisions with equipment
• Main wire swing as a result of load swing

Problem Conditions:

• Controlling swing of spreader
• Unbalanced container load
• Blocked container locking holes
• Container hung on chassis (vehicle is lifted)
• Twistlock operation failure
• Stacking containers between two and three container high stacks
• Trolleying and gantrying to eliminate excessive swing
• Avoiding collisions

Summary Reports:

• Date
• Start time of simulation
• End time of simulation
• Elapsed time of simulation
• Number and type of loads moved
• Average moves per hour
• Number of major collisions
• Number of minor collisions
• Total number of collisions

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