Your capstone design team is prototyping (e.g. you are building a model to test not a final product) a "fire identification drone. The final product is intended to fly over rugged wilderness areas and look for small fires that should be monitored and potentially fought or contained. It is NOT intended to be used in large active fires. Your subteam's job is to design and build the support frame for the drone (e.g. the structure where the motors, propellers, guidance electronics and GPS, heat sensors, radio receiver and transmitter, etc. are attached) for the prototype. You have access to a machine shop with saws, lathes (for removing material by rotating it and using a cutting tool), drills and a facility with 3-D printers that can print a variety of plastics using fused deposition modeling (this is the technique where a polymer filament is melted and forced through a nozzle to build a structure layer by layer). You will be testing in a summer/fall timeframe so you expect temperatures to be in the 5- 40°C (41°F-104°F) range. As a conservative estimate, you are assuming that all the electronics will have a mass of 250g. Your job is to identify TWO different materials from the table below to propose as materials to use to build the support frame. Select one material from the table below that you believe would potentially make a good urone frame that you could prototype given a machine shop or 3-D printers. Explain why you chose the material in 2-4 bullets. Would you shape this material in the machine shop or using 3-D printing. Explain why in 2-4 bullets.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Your capstone design team is prototyping (e.g. you are building a model to test not a final product) a
"fire identification drone. The final product is intended to fly over rugged wilderness areas and look
for small fires that should be monitored and potentially fought or contained. It is NOT intended to be
used in large active fires. Your subteam's job is to design and build the support frame for the drone
(e.g. the structure where the motors, propellers, guidance electronics and GPS, heat sensors, radio
receiver and transmitter, etc. are attached) for the prototype. You have access to a machine shop
with saws, lathes (for removing material by rotating it and using a cutting tool), drills and a facility
with 3-D printers that can print a variety of plastics using fused deposition modeling (this is the
technique where a polymer filament is melted and forced through a nozzle to build a structure layer
by layer). You will be testing in a summer/fall timeframe so you expect temperatures to be in the 5-
40°C (41°F-104°F) range. As a conservative estimate, you are assuming that all the electronics will
have a mass of 250g.
Your job is to identify TWO different materials from the table below to propose as materials to use
to build the support frame.
Select one material from the table below that you believe would potentially make a
good urone frame that you could prototype given a machine shop or 3-D printers. Explain why you
chose the material in 2-4 bullets.
Would you shape this material in the machine shop or using 3-D printing. Explain why
in 2-4 bullets.
% elona: CTE
tion, (at
failure)
Material
Density E
(g/cm) (Gea) (MPa)
YS
TS
Cost
Tm and
($/kg Jan Ta("C)
"15)
(MPa)
10C
0.172- 9.0-14.5 8.3-31.4
0.282
LDPE
0.925
100-650
180-
1.00-2.75 Ta=-110
400
Tm=115
UHMWPE
0.94
0.69
21.4-
38.6-48.3
350-525
234-
360
2.00-8.00 Ta--120
27.6
Tm-137
PTFE
20.7-34.5 200-400
2.17
0.40-
13.5-
126-
3.50-
Tar-97
0.55
15,2
216
16.90
Tm=327
PVC
1.30-
2.41-
40.7-
40.7-51.7 40-80
90-180
0.80-2.55 Ta=87
1.58
4.14
44.8
Tm=212
1.59-
Nylon 6,6
55.1-
82.8
94.5 (dry) 15-80
3.00-6.50 Ta=57
1.14
144
3.79
Tm=265
12.4-207
220
1.40-7.00
Polystyrene
butadiene
450-500
Ta-65
to -50
0.94
0.002-
0.010
rubber
Ероху
27.6-90.0 3-6
2.00-5.00 Avg. Ta.
-75
1.11-
2.41
81-117
1.40
1020 steel
7.87
207
210
380
25
11.7
1.2
-1800
72.4
Al Alloy
356.0
2.68
124
164
21.5
3.2
- 930
Alloy
4.43
114
830
900
14
8.6
35.3
-1600
TI-6AI-4V
AlO:(alumi-
num oxide)
3.98
380
-
282-551
7.4
35
2050
Transcribed Image Text:Your capstone design team is prototyping (e.g. you are building a model to test not a final product) a "fire identification drone. The final product is intended to fly over rugged wilderness areas and look for small fires that should be monitored and potentially fought or contained. It is NOT intended to be used in large active fires. Your subteam's job is to design and build the support frame for the drone (e.g. the structure where the motors, propellers, guidance electronics and GPS, heat sensors, radio receiver and transmitter, etc. are attached) for the prototype. You have access to a machine shop with saws, lathes (for removing material by rotating it and using a cutting tool), drills and a facility with 3-D printers that can print a variety of plastics using fused deposition modeling (this is the technique where a polymer filament is melted and forced through a nozzle to build a structure layer by layer). You will be testing in a summer/fall timeframe so you expect temperatures to be in the 5- 40°C (41°F-104°F) range. As a conservative estimate, you are assuming that all the electronics will have a mass of 250g. Your job is to identify TWO different materials from the table below to propose as materials to use to build the support frame. Select one material from the table below that you believe would potentially make a good urone frame that you could prototype given a machine shop or 3-D printers. Explain why you chose the material in 2-4 bullets. Would you shape this material in the machine shop or using 3-D printing. Explain why in 2-4 bullets. % elona: CTE tion, (at failure) Material Density E (g/cm) (Gea) (MPa) YS TS Cost Tm and ($/kg Jan Ta("C) "15) (MPa) 10C 0.172- 9.0-14.5 8.3-31.4 0.282 LDPE 0.925 100-650 180- 1.00-2.75 Ta=-110 400 Tm=115 UHMWPE 0.94 0.69 21.4- 38.6-48.3 350-525 234- 360 2.00-8.00 Ta--120 27.6 Tm-137 PTFE 20.7-34.5 200-400 2.17 0.40- 13.5- 126- 3.50- Tar-97 0.55 15,2 216 16.90 Tm=327 PVC 1.30- 2.41- 40.7- 40.7-51.7 40-80 90-180 0.80-2.55 Ta=87 1.58 4.14 44.8 Tm=212 1.59- Nylon 6,6 55.1- 82.8 94.5 (dry) 15-80 3.00-6.50 Ta=57 1.14 144 3.79 Tm=265 12.4-207 220 1.40-7.00 Polystyrene butadiene 450-500 Ta-65 to -50 0.94 0.002- 0.010 rubber Ероху 27.6-90.0 3-6 2.00-5.00 Avg. Ta. -75 1.11- 2.41 81-117 1.40 1020 steel 7.87 207 210 380 25 11.7 1.2 -1800 72.4 Al Alloy 356.0 2.68 124 164 21.5 3.2 - 930 Alloy 4.43 114 830 900 14 8.6 35.3 -1600 TI-6AI-4V AlO:(alumi- num oxide) 3.98 380 - 282-551 7.4 35 2050
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