design of a four arm drone in solidworks using finite element analysis (fea)
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Design Project 2: Four Arm Drone
Prepared By: Ahmed Al Dobouni
Majed Noor
College of Technology
Department of Mechanical Engineering Technology
MET 461 – Computer Integrated Design & Manufacturing, Fall 2015
What is a four Arm Drone?
It is a device that can be used for entertainment purposes, spying purposes,
and commercial purposes.
Statement of Problem
The goal of the project was to demonstrate how to design a four arm
drone.
Meeting the specifications.
Applied stress should be reasonable with respect to the yield strength, and
deflection should be as less as possible.
Design Objective Designing the structure of a four arm drone, but performing the FEA study
on only one arm
Weight of whole device = 1000g
Approximating the weight of the battery, motor, and other the components.
Scaling of dimensions.
1 cm on the print out of the four arm drones equals 2.4 cm as an actual
measurement.
Design Objective
Description The Picture Measurements (cm) Actual Measurements (cm)
Distance from Y to X 10.90 26.165
Distance from A to B 5.2 12.48
Distance from C to D 3 7.2
Distance from X to C or D 1.5 3.6
Design of the Arm
Design of the Base
Methodology
The applied load at the end of the arm drone was 4.5G (four and half times
the gravitational force)
The applied load would be 250 grams x 4.5 = 1125 grams.
1125 grams x = 11.025 N
Static Fixture & Applied Load
Installed BoltsEach one of the bolts that were installed had the
following specifications:
Torque = 0.05 N.m
Bolt Strength = 620422000 N/m^2
Safety Factor = 2
Friction Factor = 0.2
Head Diameter = 4.5 mm
Nut Diameter = 3 mm
Thread Size = 0.5 mm
Material Specifications This material has a Mass Density of 2700 Kg/m^3
An Elastic Modulus of 6.900000067e+010 N/m^2
Mass Properties of the Assembly The weight of the whole assembly = 124.14 grams
Mass Properties of the One Arm Drone
Stress Analysis The Yield Strength value is 2.750e+008 N/m^2
The Normal Stress value is 2.142e+008 N/m^2
Displacement Analysis The Displacement is 2.112e+001 mm
Conclusion A four arm drone can be used for entertainment purposes, spying purposes,
and commercial purposes
An arm drone should always meet the specifications.
The applied stress should be reasonable with respect to the yield strength,
and the deflection should be as less as possible
The design team was able to design a relatively light arm drone that weighs
31 grams
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