Benjamin H's Senior Project Blog
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Project Title: What's the Best Design for a Drone Propeller? BASIS Advisor: Josh Smith Internship Location: 3280 GatewayBlvd Ste. 362 Prescott, Az 86303 Onsite Mentor: Greg Reverdiau |
Project Abstract
Drone technology has been “the future” for more than a decade, but only recently have drones become strong and quiet enough to find widespread use. Small quadcopters now appear in the fields of surveying, videography, Search-and-Rescue, and even active combat. For each of these purposes, noise and power are the key determinants of performance. For use in residential areas, for instance, a drone must be quiet to avoid noise pollution, and for heavier applications, a drone must have enough thrust to carry itself and its cargo. Drone noise, and thus inefficiency, is invariably caused by miniature sonic booms on propeller tips, making propeller optimization a compelling avenue for performance improvement. Design changes such as wing swooping promise better performance, and theoretical designs such as toroidal shaping offer unique air interactions, so I will study the effect of design on sound and power performance. I will be compiling theoretical and practical designs for propellers, then testing them to determine the best propeller design for hobbyist-level flight. For my final product, I will complete a document detailing my findings and produce a drone featuring the best propeller design.
Blog 6: Une hélice en beignet
Going subsonic: Why drones have their distinctive hum and how propeller design can help fix it. Blog 6: Une hélice en beignet As promised, I finally began my drone testing, starting with my Push/Pull and toroidal propellers. I’ll save the results for the end of the blog, but this week’s central topic will be about... Read More
Blog 5: Hook, Line, and Printer
Going subsonic: Why drones have their distinctive hum and how propeller design can help fix it. Blog 5: Hook, Line, and Printer This week was busy, but very disjointed. I did various improvements, prints, and have completed my test rig. First off, I found a drone frame online that arrived this week. The kit came... Read More
Blog 4: Bernoulli v. Newton
Going subsonic: Why drones have their distinctive hum and how propeller design can help fix it. Blog 4: Bernoulli v. Newton What makes drones fly? There are many forces at play in a drone’s propeller, but two in particular are responsible for lift: Newton’s Third Law of Motion, and Bernoulli’s Principle. Newton’s law explains the... Read More
Blog 3: T00 M4NY NUMB3R5
Going subsonic: Why drones have their distinctive hum and how propeller design can help fix it. Blog 3: T00 M4NY NUMB3R5 “KPRC 201953Z 03003KT 10SM CLR 14/M08 A3004 RMK AO2 SLP130 T01441078.” See? As promised, that’s a lot of numbers. This is what flight looks like, a foreign language to learn. There are formats... Read More
Blog 2: Compilation, Compilation, Compilation
Going subsonic: Why drones have their distinctive hum and how propeller design can help fix it. Blog 2: Compilation, Compilation, Compilation This was my first week working on my project, so I did not begin any practical or difficult tasks. I created a spreadsheet for propeller designs, linked at the end of this blog, that... Read More
Blog 1: Start Your Engines!
Going subsonic: Why drones have their distinctive hum and how propeller design can help fix it. Blog 1: Start Your Engines! My name is Benjamin H, and I have long been an avid engineer, programmer, and 3D designer. I am intrigued by drones, especially because of the wide range of technologies needed to make them... Read More