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Chris Harty. George Lyons. Garret Nicodemus. Heather Trumbour. Goals:. The design and construction of the Emergency Generator Arm Build a part of the project in each of the four major engineering disciplines. Constraints?. Prior Knowledge Variables Restrained Simplicity. Electrical.
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Chris Harty George Lyons Garret Nicodemus Heather Trumbour
Goals: • The design and construction of the Emergency Generator Arm • Build a part of the project in each of the four major engineering disciplines Constraints? Prior Knowledge Variables Restrained Simplicity
Electrical • Use of AutoCAD • Assembly of Circuit Board
Circuit Board Layout Piecing together the Circuit
CIVIL • Use of Visual Analysis • Design of Cross Members • Force Testing VisualAnalysis 3.12.EDU Report May 12, 2006 4:46 PM Project: Generator Arm Test File: H:\Generator Arm Test files\Original setup.VAP Engineer: Christopher Harty Billing: For Educational Purposes Only Default Units: Inches, Pounds, Degrees, ºFahrenheit, Seconds. Nodal Displacements —————————————————————————————————————————————————————————— Node Load Case DX DY RZ in in deg —————————————————————————————————————————————————————————— N2 Service Case 2 0.0009 -0.0484 -0.2752 ——————————————————————————————————————————————————————————
Member Visual Analysis Tests for Cross Bracing Support
Mechanical • Designed load cell using AutoCAD • Made the load cell with a CNC machine • Tested springs • Used spring equation
Parts Custom Cut Aluminum Parts used in arm
Load Cell AutoCAD and Gibbs Design used for CNC program
Overall Length (inches) Wire Diameter (inches) Spring Diameter (inches) Spring Rate (lbs/inch) Initial Tension (lbs) Weight (ounces) Force (lbs) 2.5 0.028 5/16 .64 .42 .168 3.22 3 .048 7/16 2.81 1.62 .450 13.93 3.5 .48 7/16 2.21 1.62 .552 11.3 Spring Placement
Chemical Pitot Tube Equations Used in Final Analysis Simplified Equation:
Analysis Increased Air Velocity = Greater Power Output 3 mW at 30 mph on each resistor 100 ,470 , 1000 Goal:
Results Circuit Schematic for testing arm in wind tunnel
Cost Analysis • Two Options to sell products to Boeing • Purchase from Leopard's • Manufacture ourselves *Guaranteed $15,000 a month from Leopard’s *Range between –$1,097 and $19,720 profit if manufactured ourselves
Improvements SINCE: 960 meets the set goal per generator Better Propeller, Bigger or more Aerodynamic Spring is too fast, needs lock mechanism
Acknowledgments Professor William Haller Professor Scott Hummel Professor Daniel Lewis Professor Scott Moor Professor Rebecca Rosenbauer Professor Edmond Saliklis Professor David Veshosky