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Autogyro UAV

Design Proposal Presentation

Team 22: Pranav Sakhuja, Aaditya Shivadey, Arham Nawaf, Ruochen Li

Sponsor: Robert Heath

WI25 - SP25

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Contents

Project Overview

Risk Reduction Review

Key Design Solutions

Major Components

Remaining Questions & Plan

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Ruochen

A brief overview of the problem definition (1-2 slides).
Review Risk Reduction that has been completed.
List of key design decisions that have already been made, and explain the justification for these decisions.

Justifications should include engineering analysis, key equations used, and numerical results.

List key design decisions that still need to be made. Present a plan and timeline for making these decisions before the Proof-of-Concept Presentations in Week 5 or 6.
Summarize the proposed design that the team plans on implementing.
List major components that need to be purchased, and a timeline for placing the purchase orders.
List key items that need to be machined, and feedback from shop engineers (Ian Richardson and/or Tom Chalfant) regarding timeline and feasibility.
List remaining questions and concerns that need to resolved
Show a Gantt chart with task assignment for the rest of the quarter.
The quality of the graphics (CAD and photos with annotations) is essential for a good grade. Comparison tables should be used where appropriate and a dry run of your presentation is essential for a good delivery.

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Overview of Problem Definition

Develop an autonomous autogyro system for aerial monitoring.
Live-stream wave conditions, shark activity, and coastal changes.
Enable real-time data transmission and analysis.

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Ruochen

Durafly RC Autogyro

Leopard Sharks at Scripps

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Risk Reduction Review

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Arham

Successful flight with 150 grams of emulated payload

Identified mechanical weak points: Rear Landing Gear, Pushrod connectors, rotor cap

Broken Rear Landing Gear Mount

Broken Plastic Rotor Cap

Broken Plastic Pushrod Connector

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Risk Reduction Review

Identified initial error in payload calculation (250 g was incorrect)

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Arham

150 g payload

Battery already inside

Correct payload calculation:

Risk reduction test shows current autogyro has sufficient payload capabilities

Mass of camera ~ 10 g

Mass of pixhawk controller ~ 40 g

Mass of camera + control system battery ~ 40 g

Total mass of receiver ~ 20 g

Mass of 3D Printed parts ~ 30 g

Total Mass of payload = 10+40+140+40+20 = 140 g

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Key Design Solutions

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Arham

Fuselage Redesign (Space Enlargement)

Landing Gear Mount Redesign

Control System

Camera System

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Key Design Solutions - Fuselage Enlargement

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Aaditya

Optimized to accommodate payload efficiently
Lightweight, durable structure with 2 ribs and stringers for added support
To be 3D printed using aerospace-grade PLA for minimal weight and high durability

CAD of Redesigned Fuselage

Mockup of Wing with External Skin

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Fuselage FEA Simulations - Max Force Simulation

Conducted FEA to simulate stress and displacement in case of crashes
Assumptions: Mass = 0.85kg, Velocity = 10m/s, Impulse Time = 0.5 sec
Force Calculation:

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Stress Distribution on Fuselage

SF = 2

Displacement Distribution on Fuselage

Max: 3.75mm

Aaditya

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Key Design Solutions - Landing Gear Mount Redesign Option 1

Improvements:

Enhanced durability and ease of assembly
Two-part design:

C-shaped clamp mounts to fuselage with an interference fit
Connector links clamp to wheel, enabling rotation and ground control

Quick-replace capability improves testing efficiency after crash landings

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Aaditya

Redesigned Landing Gear Mount V1

Landing Gear

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Key Design Solutions - Landing Gear Mount Redesign Option 2

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Max displacement: 0.28 mm

Max stress: 11.2 MPa (YS = 22 MPa)

CAD Model

FEA for estimated max landing force (17N):

Arham

Design (Material: Aero PLA)

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Key Design Solutions - Control System

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Pranav

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Key Design Solutions - Camera System

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Ruochen

Dji Air Unit o4
Pan-Tilt Camera Platform / Simple Fixed Camera Mount

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Key Design Solutions - Camera System

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Ruochen

FEA on fix mount under extreme conditions

FEA on PT platform

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Major Components + Timeline

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Pranav

Fuselage

Initial rib-frame CAD completed
Prototyping next week�

Control System + Camera Setup

Electronics purchased and assembled
Power circuit currently being soldered
Upgraded Receiver to save space and weight
Spec new airspeed sensor�

Electronics Tray

Modular Rack will be designed for main components�

Camera Mount

Designed a fixed version and a direction controllable version
Prototyping currently

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Remaining Questions

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Aaditya

What effects will the new fuselage design have on aerodynamics?
Telemetry Radio 300m Range Limitation - Does it affect the plane’s mission in any way?
What is the optimal design for the fuselage to minimize weight and improve durability?
Apart from wind speed sensor, will we need a more intricate sensor setup?

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Gantt Chart

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Arham

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Thank you!

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