Team HazardHawk Presentation Outline Objective Project Overview Design Requirements
Coulter, Lucinda, Managing Editor has reference to this Academic Journal, PHwiki organized this Journal Team HazardHawkTeam HazardHawk 2008CRITICAL DESIGN REVIEWApril 24, 2008Presentation OutlineObjectiveProject OverviewDesign RequirementsConcept SelectionKey Technical ChallengesPer as long as mance RequirementsPrototype: Materials / Fabrication / AssemblyElectronics / Software OverviewDesign StatusFeasibility Assessment Prototype Per as long as manceQuestionsObjectiveTeam HazardHawk 2008Task: Develop an autonomously-controlled, electric-powered vehicle whose purpose is to demonstrate the integration of technologies needed to locate a hazardous material in an open field.
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Project Overview Key FeaturesAutonomous GPS NavigationHazardous Materials Sensor to locate in addition to sample hazardsMain ConsiderationsCan operate in a large open fieldCan locate a hazard in addition to return to start point quicklyNavigation of a variety of terrains with surface obstaclesTeam HazardHawk 2008Design RequirementsAutonomous, electric-poweredGPS enabled, accurate to within 1 meter (3.28 ft)Maximum weight: 35 kg (77.1 lb)Maximum size: 1 meter (3.28 ft) in any dimensionTop Speed: 8 m/s (17.89 mph)Hazard detection in under 1 minute when within 100 meters of hazardTeam HazardHawk 2008Concept Selection Individual ConceptsIndividual Concepts were developedKey Features of interest merged into group concept
Concept Selection Group ConceptTarget Market: Public Service SectorFire Department, Police Department, Hazmat, in addition to other public agenciesPrototype Design FeaturesKey Features Included:Autonomous GPS NavigationInfrared Hazard SensorsRetractable Oscillating ArmTank DriveKey Technical ChallengesEstablishing navigational precision in addition to awareness of location using imprecise GPS dataThe Oscillating Robotic Arm:Material in addition to geometry selection as long as a strong, lightweight armKinematicsHazard Sensing MethodologyDetermining optimum search height in addition to orientationDeveloping logic as long as search algorithm
Key Technical Challenges Design of Arm AssemblyMaterial Selection, Member Length, Oscillation SpeedMaterials Considered: Carbon Fiber, PVC, Plywood, in addition to HDPELonger-the-BetterFactor of Safety of 4Optimal:30 in members = 2.3 rad/secKey Technical Challenges Sensor Sensitivity Goal: to search at a height where the conical infrared signal emitted by the hazard has a large diameterHeight constrained by the vehicle size per as long as mance requirementResult: Search at the maximum height in addition to a downward orientationDetection radius is 8.3 in at search height h= 42 in.Key Technical Challenges GPS NavigationSought to determine optimal search directionDue north most accurate approach directionAverage deviation of 2.2 ftDue North Residuals: 1 ft/sec
Prototype RequirementsWeight < 70 lbsDimensions < 3 feet in any directionComplete Task < 8 minutesResponsive user interfaceManeuvers autonomously via GPSSeeks in addition to reaches hazardIdentifies target as hazardReturns to start positionDeactivates upon completionTeam HazardHawk 2008Prototype Design FabricationAssemblyCNC manufacturing as long as precise sizing of body panels, arm base, in addition to mountsCustom Cut Shafts, ChainWheel AssemblyMount AssemblyArm AssemblyPrototype Design FabricationAssembly:Body Panels attached with corner braces Motor Mounts in addition to Bearing Mounts attached to base with ¼ bolts to allow as long as adjustabilityArm fabricated with PVC, assembled with ¼ in bolts. Electronics OverviewPrototype Software FlowchartCarry to StartAcquire Start CoordinatesEast or West of targetNoNoYesYesYesYesYesNoNoNoNoYesDesign StatusVideoTeam HazardHawk 2008 Prototype Per as long as manceWeight < 70 lbs 60.7 Lbs 10/10Dimensions < 3 feet in any direction 15 x 16 x 36 in 15/15Complete Task < 8 minutes N/A 0/15Responsive user interface Yes 10/10Maneuvers autonomously via GPS w/out Arm 7/10Seeks in addition to reaches hazard w/out Arm 7/10Identifies Hazard Yes 10/10Returns to start position w/out Arm 7/10Deactivates upon completion Yes 10/10 Total: 76/100PrototypeTeam HazardHawk 2008Feasibility AssessmentGPS Navigation, Arm Mechanism, IR Hazard Detection are all feasible.Showstopper: Drive TrainSensing technology needs to be developedFurther development is advised Lessons LearnedImportance of hardware/software integrationParallel DevelopmentImportance of a thorough CAD model Project planning in addition to delegation of responsibilitiesProblems with outsourcing partsQuestionsTeam HazardHawk 2008
Coulter, Lucinda Managing Editor
Coulter, Lucinda is from United States and they belong to Overdrive and they are from Tuscaloosa, United States got related to this Particular Journal. and Coulter, Lucinda deal with the subjects like Trucking
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