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Simulators and test-benches development

Branches of activities/Production functions/Simulators and test-benches development/

Fig. B.2. Universal Prototyping Bench.
Fig. B.2. Universal Prototyping Bench.
To assess the capabilities of a man-machine interface of the cockpit displays and controls, the GosNIIAS has developed a dedicated tool called «universal prototyping bench». The universality of this bench is that the virtual cockpits of various aircraft are implemented using a single hardware platform and basic software. Due to the prototyping bench the aircraft cockpit development costs may be significantly reduced, since, during the design stage the following aspects may be assessed in real time:
  • Formats (frames) of on-screen display.
  • Logic and appearance of consoles and controls.
  • Flight crew warning system.
  • Information reconfiguration logic.
The components of the prototyping bench are developed based on the Customer's input data. The computer system of the bench includes more than 40 models of aircraft systems and equipment. The adequacy of mathematical models of aircraft systems and equipment is confirmed by validation testing. The prototyping bench is a place to hold expert councils for assessing the cockpit displays and controls and a means to pre-integrate the aircraft equipment at a model level. The software and hardware components developed for the bench can be used within:
  • Benches of equipment developers.
  • Airborne equipment integration bench (electronic bird).
  • Wing-flap system and landing gear exercising bench (iron bird).
  • Procedure simulator.
  • Set of training flight simulators.
Virtual panels and controls on the bench are interconnected with the system models, so the influence on a virtual control gear has corresponding effect on a system model. On the next page is an incomplete list of models implemented within the prototyping bench of MS-21 plane: >>>
Fig. B.3. Virtual panels and controls interconnected with the systems models.
Fig. B.3. Virtual panels and controls inter- connected with the systems models.
>>> 
  • Model of hydraulic system.
  • Model of auxiliary power system.
  • Model of basic propulsion system.
  • Model of front wheel control system.
  • Model of wheel braking system.
  • Model of landing gear retraction and extension system.
  • Model of integrated control system.
  • Model of strapdown inertial reference system.
  • Model of short range radio navigation system.
  • Model of radar range finder.
  • Model of air speed parameters system.
  • Model of automatic direction finder.
  • Model of radio altimeter.
  • Model of satellite navigation system.
  • Model of weather radar.
  • Model of instrument landing system.
  • Model of fuel system.
  • Model of air conditioning system.
  • Model of anti-icing system.
  • Model of generation system.
  • Model of lighting system.
  • Model of circuit breakers system.
  • Model of traffic alert and collision avoidance system.
  • Model of oxygen supply system.
  • Model of fire-protection system.
  • Model of hatch and door system.
  • Model of on-screen display system.
  • Model of automatic flight control and engine thrust control system.
  • Model of flight crew warning system.
  • Audio system model.
  • Aerodynamic model.
  • Model of mass/inertia data.
  • Model of controls.
  • Model of flight management computer.
  • Model of airborne maintenance system. >>>
Fig. B.4. Example of prototyping of wing-flap system configuration displaying on a EWD frame (top) and on a multi-function display MFD (bottom).
Fig. B.4. Example of prototyping of wing-flap system configuration displaying on a EWD frame (top) and on a multi-function display MFD (bottom).
>>> GosNIIAS is also developing a dynamic test bench, similar to Honeywell's test bench, for testing the process of aircraft crew’s operation with the touch screens and control panels in conditions of vibration.

This test bench was developed with a purpose to create a tool which would help the aircraft and instrumentation manufacturing companies, at an early design stage, to assess the ergonomics of the cockpit layout where touch screens and control panels are planned to be installed, and to assess the ergonomics of designed touchscreens and panels, thus, contributing to improvement of the cockpit layout.

Such optimization implies the selection of:
  • Arrangement of touch screens and control panels in various layouts of the cockpit.
  • The design of touch screens and control panels allowing the flight crew to perform control actions, including those in the conditions of aircraft vibration which occurs, for example, during atmospheric turbulence.
  • The sizes and view of touch screens and control panels.
  • The sizes and view of symbols displayed on touch screens and panels.
  • Optimal type of touch screen (resistive, surface acoustic, infrared, etc.) >>>
Fig. B.5. Dynamic test bench, designed by Honeywell, for testing the aircraft crew’s operation with the touch screens and control panels.
Fig. B.5. Dynamic test bench, designed by Honeywell, for testing the aircraft crew’s operation with the touch screens and control panels.
Fig. B.6. Prototyping the operation with touch screens for MS-21 aircraft.
Fig. B.6. Prototyping the operation with touch screens for MS-21 aircraft.
Fig. B.7. The use of monitoring and recording system that monitors the eye-movement activity.
Fig. B.7. The use of monitoring and recording system that monitors the eye-movement activity.
>>> The live monitoring and recording system of the dynamic bench will provide a possibility of synchronized registration, recording, storage and recovery of all operations results as requested from the dedicated database, while its computer system will provide adequate simulation of the aircraft's behavior depending on the flight mode and environment conditions.

It also should be noted that, in order to assess certain formats, tracking of the eye-movement activity is used when reading the information, on the benches.
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