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Victor Calamaro, Nick Flanagan, Rashaud Harvey, Danielle Painter Cockpit Assembly Team.

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Presentation on theme: "Victor Calamaro, Nick Flanagan, Rashaud Harvey, Danielle Painter Cockpit Assembly Team."— Presentation transcript:

1 Victor Calamaro, Nick Flanagan, Rashaud Harvey, Danielle Painter Cockpit Assembly Team

2 Customer Needs Instrument the existing throttle lever with position transducers Maintain control mechanisms such as pilot interface handles, range of motion and feel Instrument the existing rudder pedals with displacement and force transducers Maintain control mechanisms such as pilot interface pedals, range of motion and feel Instrument the existing yoke with displacement (axial and rotational) and force transducers Maintain control mechanisms such as pilot interface grips, range of motion and feel Enable feedback from all transducers (force, spring rate and drag)

3 Customer Needs (cont.) Install LCD monitor in front of each pilot station (2) Implement an emergency stop function in multiple locations that will allow a given simulation to reset if one operation fails Two wire (signal and return) cable Two emergency stop switches located at each pilot station Two switches made available for ground personnel Clear labeling of switch function Pull to operate, push to stop Install cabling from all transducers and monitors to the ground Interface connector for easy disconnect/replacement Rout cabling to ventilation tube and wire way conduit Provide a minimum of 10ft cabling beyond conduit exit Install mounting system for side stick inceptor. Design elbow and wrist assembly for pilot comfort

4 Engineering Specifications Rudder sensor must output a position signal from 0 to 5 V Throttle sensor must output a position signal from 0 to 5 V Yoke sensors must output a position and rotation signal from 0 to 5 V All controls provide X lbf feedback Monitors are mounted in cockpit (yes/no measurement) Emergency stop resets simulation (yes/no measurement) All cabling is able to reach computer system (yes/no measurement) Items in italics need to be determined

5 Overview Yoke Drawback Yoke Rotation Throttle LCD Display Rudder Pedals

6 Pugh Matrix Weighting Ease of Maintenance How easy is it to get to the sensor if there is problems? Importance - Medium Accuracy How close does the sensor measure position? Importance - High Ease of Installation How easy is it to mount the sensor? Importance - High Durability How often will the sensor need to be replaced? Importance - Medium Cost How much does the sensor and associated signal conditioning cost? Importance - Low

7 Yoke Drawback – Sensor Type LVDT Type dependent on mounting location Most reliable, most expensive Encoder Similar in cost, still reliable Quadrature Output String Potentiometer Type dependent on mounting location Cheap, will wear out

8 Yoke Drawback – Mounting Location Connected to yoke shaft itself Most direct -> could be most accurate Complex geometry causes problems Attached to cable Simplest Least direct -> chance for cables to slip etc -> chance for lower accuracy

9 Yoke Drawback – Signal Conditioning LVDT Requires an expensive signal conditioning board to output 0 to 5V Board produced by Moog Analog board can be made Encoder Requires a less expensive signal conditioning board to output 0 to 5V String Potentiometer No conditioning necessary

10 Yoke Drawback – Pugh Matrix

11 Yoke Rotation – Sensor Type RVDT/LVDT Type dependent on mounting location Most reliable, most expensive Encoder Less expensive, still reliable Quadrature Output Rotational/String Potentiometer Type dependent on mounting location Cheap, will wear out

12 Yoke Rotation – Mounting Location On yoke itself Most direct -> could be most accurate Complex geometry causes problems On Pulley for cables Less direct -> slightly less accurate then on the yoke Easier to mount then on yoke Attached to cable Simplest Least direct -> chance for cables to slip etc -> chance for lower accuracy

13 On Yoke

14 On Pulley

15 Attached to Cables

16 Yoke Rotation – Signal Conditioning RVDT/LVDT Requires an expensive signal conditioning board to output 0 to 5V Board produced by Moog Analog board can be made Encoder Requires a less expensive signal conditioning board to output 0 to 5V Rotational/String Potentiometer No conditioning necessary

17 Yoke Rotation – Pugh Matrix

18 Throttle- Sensor Technology Encoder Easy installation Durable LVDT Requires Signaling Board Accurate RVDT Accurate Easy installation

19 Throttle-Mounting Location Between Throttle Levers Durable Accurate Easily accessible

20 Throttle-Mounting Location

21 Throttle-Signaling Condition RVDT/LVDT Requires an expensive signal conditioning board to output 0 to 5V Board produced by Moog Analog board can be made Encoder Requires a less expensive signal conditioning board to output 0 to 5V

22 Throttle-Pugh Diagram

23 Rudder Pedal-Sensor String/Rotational Potentiometer Inexpensive Wears out Encoder Durable Reliable LVDT/RVDT Requires Signaling Board Expensive Accurate

24 Rudder Pedal-Mounting Location Attached to pedal Direct Accessible Cable Connection Indirect Slip possible

25 Rudder Pedals

26 Rudder Pedal-Signaling Condition RVDT/LVDT Requires an expensive signal conditioning board to output 0 to 5V Board produced by Moog Analog board can be made Encoder Requires a less expensive signal conditioning board to output 0 to 5V String/Rotational Potentiometer No conditioning necessary

27 Rudder Pedal - Pugh Matrix

28 LCD Display-Technology Flat Panel Durable Easy Maintenance Compact Monitor Bulky Easy Installation

29 LCD Display-Mounting Bolt on Dash Easily accessible Durable Velcro on Dash Easily accessible Cheap Glue on Dash Easily accessible Easy installation

30 LCD Display-Mounting Location

31 LCD Display-Pugh Diagram

32 Risk Management

33


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