PowerPoint Presentation

Victor Calamaro, Nick Flanagan, Rashaud Harvey, Danielle Painter

Cockpit Assembly TeamCustomer NeedsInstrument the existing throttle lever with position transducersMaintain control mechanisms such as pilot interface handles, range of motion and feel Instrument the existing rudder pedals with displacement and force transducersMaintain 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) 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 3Engineering SpecificationsRudder 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

OverviewYoke DrawbackYoke RotationThrottleLCD DisplayRudder PedalsPugh Matrix WeightingEase of MaintenanceHow easy is it to get to the sensor if there is problems?Importance - MediumAccuracyHow close does the sensor measure position?Importance - HighEase of InstallationHow easy is it to mount the sensor?Importance - HighDurabilityHow often will the sensor need to be replaced?Importance - MediumCostHow much does the sensor and associated signal conditioning cost?Importance - Low6Yoke Drawback Sensor TypeLVDTType dependent on mounting locationMost reliable, most expensiveEncoderSimilar in cost, still reliableQuadrature OutputString PotentiometerType dependent on mounting locationCheap, will wear outYoke Drawback Mounting LocationConnected to yoke shaft itselfMost direct -> could be most accurateComplex geometry causes problemsAttached to cableSimplestLeast direct -> chance for cables to slip etc -> chance for lower accuracyYoke Drawback Signal ConditioningLVDTRequires an expensive signal conditioning board to output 0 to 5VBoard produced by MoogAnalog board can be madeEncoderRequires a less expensive signal conditioning board to output 0 to 5VString PotentiometerNo conditioning necessaryYoke Drawback Pugh Matrix

Yoke Rotation Sensor TypeRVDT/LVDTType dependent on mounting locationMost reliable, most expensiveEncoderLess expensive, still reliableQuadrature OutputRotational/String PotentiometerType dependent on mounting locationCheap, will wear outYoke Rotation Mounting LocationOn yoke itselfMost direct -> could be most accurateComplex geometry causes problemsOn Pulley for cablesLess direct -> slightly less accurate then on the yokeEasier to mount then on yokeAttached to cableSimplestLeast direct -> chance for cables to slip etc -> chance for lower accuracyOn Yoke

On Pulley

Attached to Cables

Yoke Rotation Signal ConditioningRVDT/LVDTRequires an expensive signal conditioning board to output 0 to 5VBoard produced by MoogAnalog board can be madeEncoderRequires a less expensive signal conditioning board to output 0 to 5VRotational/String PotentiometerNo conditioning necessaryYoke Rotation Pugh Matrix

Throttle- Sensor TechnologyEncoderEasy installationDurableLVDTRequires Signaling BoardAccurateRVDTAccurateEasy installation

Throttle-Mounting LocationBetween Throttle LeversDurableAccurateEasily accessible

Throttle-Mounting Location

Throttle-Signaling ConditionRVDT/LVDTRequires an expensive signal conditioning board to output 0 to 5VBoard produced by MoogAnalog board can be madeEncoderRequires a less expensive signal conditioning board to output 0 to 5VThrottle-Pugh Diagram

Rudder Pedal-SensorString/Rotational PotentiometerInexpensive Wears outEncoderDurableReliableLVDT/RVDTRequires Signaling BoardExpensiveAccurate

Rudder Pedal-Mounting LocationAttached to pedal DirectAccessibleCable ConnectionIndirectSlip possible

Rudder Pedals

Rudder Pedal-Signaling ConditionRVDT/LVDTRequires an expensive signal conditioning board to output 0 to 5VBoard produced by MoogAnalog board can be madeEncoderRequires a less expensive signal conditioning board to output 0 to 5VString/Rotational PotentiometerNo conditioning necessary

Rudder Pedal - Pugh Matrix

LCD Display-TechnologyFlat PanelDurableEasy MaintenanceCompactMonitorBulkyEasy InstallationLCD Display-MountingBolt on DashEasily accessibleDurableVelcro on DashEasily accessibleCheapGlue on DashEasily accessibleEasy installation

LCD Display-Mounting Location

LCD Display-Pugh Diagram

Risk Management