The Effect of Mass of Helicopter and Length of Hanging Mass from Helicopter on Acceleration Abby Bault – Center Line Megan Satawa – Warren Woods Tower.

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Presentation transcript:

The Effect of Mass of Helicopter and Length of Hanging Mass from Helicopter on Acceleration Abby Bault – Center Line Megan Satawa – Warren Woods Tower

TABLE OF CONTENTS Conclusion Errors Made Real World Application Further Research Review Questions Background Problem & Hypothesis Materials & Procedures Data Collected Odd Trials/Data Statistical Tests

BACKGROUND Lift Thrust Drag Weight

LIFT Force that causes helicopter to move up Bernoulli Principle – Pressure increases as speed increases Wings – Air flows around body: changes pressure and velocity Through center of pressure

THRUST AND WEIGHT Thrust moves helicopter forward Must be equal to weight Weight is force of gravity – pulls down

DRAG Force that opposes motion Created by contact with fluid – Skin friction: interaction between solid and gas Acts through center of pressure

BACKGROUND

PROBLEM To determine the effect of mass of helicopter and distance of hanging mass from helicopter on the acceleration of the helicopter.

MASS

DISTANCE

HYPOTHESIS If the distance of the hanging mass from the helicopter and the mass of the helicopter are the greatest then the acceleration will be the slowest.

DESIGN OF EXPERIMENTAL VALUES

MATERIALS TI-nSpire Meter Stick Propel RC Toy Helicopter Craft String Propel RC Controller Different Masses Video Recorder Timing Device 18 AA Batteries

PROCEDURES Randomize trials and set up camera and meter sticks Fly the helicopter and record the flight Analyze the video using LoggerPro Record the acceleration

VIDEO

DATA COLLECTED

OBSERVATIONS Outline trials with specific observations HERE

ANALYSIS Two-Factor DOE – Mass and string length

STANDARDS

EFFECT OF MASS Mass (-) 25 g(+) 35 g Grand Average: 1.398Grand Average: 1.673

EFFECT OF DISTANCE Distance (-) 0 m(+).1 m Grand Average: 1.348Grand Average: 1.912

INTERACTION EFFECT Mass (+) 35 g(-) 25 g Distance (+).1 m (-) 0 m

CONCLUSION Lack of statistical significant Based of D.O.E analysis Effect or InteractionEffect Value 2 x Range of Standards Greater than? Effect of Mass no Effect of Distance no Interaction Effect of Mass and Distance no

CONCLUSION Scientifically significant results Based on dot plot of effects Mass Distance

CONCLUSION Hypothesis: Accepted

ERRORS MADE Wrong weight on helicopter for DOE 1 – Trials redone Lack of operating experience

Design Flaws Inconsistent helicopter battery power

FURTHER RESEARCH Different types of helicopters Different factors – Humidity, air flow(turbulent or laminar) jkda

real world application MedEvac Flights Emergency Rescue

QUESTIONS?