MSD 1 WEEK 6 SYSTEM DESIGN REVIEW Team Rochester Institute of Technology College of Engineering P /2/2014 1
AGENDA Background Underlying Mission Problem Statement & Deliverables Customer Needs & Engineering Requirements Week 3 action item review P /2/ System Analysis Function Decomposition System Architecture Selection Criteria Brainstorm Concept Feasibility Test Plan Pugh Chart Final System Selection Risk Assessment Updated Project Plan
AGENDA Background Underlying Mission Project Background Problem Statement & Deliverables Customer Needs & Engineering Requirements Week 3 action item review Glider prototype status (shows scott’s cad) Glider Purchase Aero Club Flight video P /2/ System Analysis Function Decomposition Connection to Eng and Customer Req’s Selection Criteria Brainstorm Concept Feasibility 1 (who owns it 2 (what are they doing) 3 (when will it be done) Pugh Chart Final System Selection Rendering of System Component Selection Explanation and reasoning over other options
BACKGROUND Team Rochester Institute of Technology College of Engineering P /2/2014 1
UNDERLYING MISSION To Harvest Energy from High Altitude Winds 250m 100m 250m P /2/2014 5
PROBLEM STATEMENT & DELIVERABLES The goal of this project is to design, build, and reliably test a powered, human-controlled tethered glider specifically for use as an airborne wind energy system (or AWT) Tethered glider capable of continuous circular flight Integration with current base station 30 flights, each 3 minutes or longer, with tether tension and glider position recorded Functional simulation of flight path P /2/2014 6
CUSTOMER NEEDS Customer Need #ImportanceDescription CN19Tethered glider system (with electric prop assist for launching) that demonstrates at least 3 minutes of continuous circular flight path with taunt tether. CN21Clean appearance CN39Human controlled plane CN43No special flight skill required CN59Use existing base station design CN69Tether tension is measured and recorded during flights CN79Tether direction is measured and recorded during flights CN89Videos with accompanying data files of all flight tests (even ones that don’t work) CN99Able to survive crashes with minor repairs (short downtime) CN109Replaceable Parts CN113Maintenance Guide P /2/2014 7
ENGINEERING REQUIREMENTS rqmt. #ImportanceSource Engr. Requirement (metric) Unit of Measure Marginal Value Ideal Value S19CN1Drag Coefficient S29CN1Lift Coefficient S39CN6Tether Tensionlbs523 S49CN7Horizontal Potentiometer Recordingdeg S59CN7Vertical Potentiometer Recordingdeg S63CN1Wingspanft3.33 S79CN1Weightlbs43 S83CN4Cooper-Harper Rating--31 S93CN3Flight StabilityBinaryMarginalComplete S109CN1Cost$ S113CN9Repair Downtimemin53 S123CN10Repair Cost$10050 S133CN11Profile of Surface for Airfoil Manufacturingin S149CN1Service Ceilingft<10075 S153CN1Flight Path Diameterft 2550 S169CN1Maximum Glider Speedmph3045 P /2/ The Cooper–Harper Rating scale is a set of criteria used by test pilots and flight test engineers to evaluate the handling qualities of aircraft during flight test.
PHASE TWO WORK DONE SO FAR (NEEDS BETTER NAME) Team Rochester Institute of Technology College of Engineering P /2/2014 1
GLIDER PROTOTYPE STATUS (SHOWS SCOTT’S CAD P /2/
GLIDER PURCHASE P /2/
AERO CLUB FLIGHT VIDEO P /2/
SYSTEM ANALYSIS Team Rochester Institute of Technology College of Engineering P /2/2014 1
FUNCTIONAL DECOMPOSITION P /2/
SELECTION CRITERIA P /2/
BRAINSTORM P /2/
CONCEPT FEASIBILITY P /2/
PUGH CHART P /2/
FINAL SYSTEM SELECTION P /2/
HOUSE OF QUALITY P /2/
USE SCENARIOS / STAKEHOLDERS Investor Fund Project Dr. Gomes Creates Project RIT Creates MSD Team P14462 P14462 Designs base station, performs initial flight testing Dr. Gomes Continues project Background Use P15462 Use P15462 Design and build a tethered glider P15462 Test fly glider P15462 Crash glider P15462 Successfully collect data P15462 Repair with replaceable parts P15462 Test fly glider P /2/
KEY CONCERNS 1.Weather Rochester has variable weather Take advantage of weather forecasting Schedule practice flying in MSD 1 2.Inaccurate Simulation Improper understanding of flight mechanics Consult with subject matter experts 3.Failure to Achieve Stable Flight in a Continuous Circular Path Inadequate control system design Consult with subject matter experts Schedule practice flying in MSD 1 P /2/
MOVING FORWARD P /2/
TEAM CustomerGuide Dr. Mario Gomes RIT Professor Professional Engineer Edward Hanzlik Devin Bunce – Matthew Zebert – Matthew Kennedy – Matthew Maginn – Carl Stahoviak P /2/
EXISTING SYSTEMS Benchmarking TableProducts / Processes ParamtersMakaniAmpyxKiteGen Energy Capturing SystemYes Powered Tether SystemYesNo Powered Reel SystemNoYes Wingspan (m)85.5? Autonomous Flight Yes Tether Length (m) Kw Creation30?5 P /2/