Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan...
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Transcript of Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan...
![Page 1: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/1.jpg)
Sophisticated Design
Automatic Tailgate
Final PresentationDecember 5, 2001
Ted Akiskalos
June Doan
Tarek Elshazly
Maggie Kim
David Nimitz
Sharon Ramey
![Page 2: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/2.jpg)
Objective
To build an automatic system that will facilitate the operation of a truck tailgate
![Page 3: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/3.jpg)
Goals and Constraints
To develop an automatic truck tailgate that is:
• Cheap• Robust • Compact• Reliable• Not a major interference to truck load• Easy to use
![Page 4: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/4.jpg)
Overall Design
![Page 5: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/5.jpg)
Agenda
• Part Drawings- Locking Mechanism- System Cover- Bracket
• Engineering Analysis
•Prototype Presentation
![Page 6: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/6.jpg)
Locking Mechanism
![Page 7: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/7.jpg)
Parts (con’t.)System Cover
![Page 8: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/8.jpg)
Parts (con’t.)
Bracket
Front View Back View
![Page 9: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/9.jpg)
Parts Detaching Pin
Cable Detachable Cable Secure
0.5”
1.5”
0.4”
1.5”
0.6”
2”6”
1/14”
Front View
Side View
2”
6”
Spool
2”
Cable
Eyelet
![Page 10: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/10.jpg)
Engineering Analysis
lbW
inWinlb
LWLF
M
T
O
903
171730
3
0
To find weight of tailgate:FT
W
Fx
Fy
L
FT = Force required to lift the tailgate from the edge (30lb)W = Weight of the tailgateFx & Fy are the reaction forces in the X and Y axis, respectivelyL= Length from hinge to end of tailgate
L/3
o
![Page 11: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/11.jpg)
L
Engineering Analysis (con’t.)
lblbTF
F
inlbinT
LWlT
M
x
x
O
lbT
88.3145cos08.45cos
0
3
17901645sin
3sin
0
08.45
To find tension in cable:
To find added force in x direction:
W
Fy
L/3
T
45o1”
Fx
W = Weight of the tailgate (90lb)Fx & Fy are the reaction forces in the X and Y axis, respectivelyT = Tension in the cableL= Length from hinge to end of tailgatel= Length from hinge to attachment point of cable
ol
![Page 12: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/12.jpg)
Measuring the Tension in the Cable
![Page 13: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/13.jpg)
Engineering Analysis (con’t.)
Motor requirements
ininld 13.251624
12
4
1
Distance connection point on tailgate travels:
inlblbdTW .98.1132"13.2508.45*
Work required:
hpWs
inlb
s
inlb
dt
dWP 017.08.12
.3.113
10
.98.1132
Power required:
inlbininlbrTTorque .08.451.08.45*
Torque needed: T
r
Spool
![Page 14: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/14.jpg)
Motor
16”
20”
x
Open tailgate
Closed tailgateD=3/8”
17”
4”
Engineering Analysis (con’t.)Hole extension
20”
16”
x
4”
90-
Triangle created in open position:
To solve for hole extension, x:
34.51
16/20tan
"2.3"4/)34.5190tan(
xx
![Page 15: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/15.jpg)
Hole Extension
![Page 16: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/16.jpg)
Fabricating Spool
![Page 17: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/17.jpg)
Motor and Drive Mechanism Mounted on Truck
![Page 18: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/18.jpg)
Installing a Support Bracket for Spool
![Page 19: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/19.jpg)
Preliminary Cable, Pin Assembly
![Page 20: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/20.jpg)
Completed Cable, Pin Assembly
![Page 21: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/21.jpg)
Fitting the Cover to the Side of the Bed using a
Template
![Page 22: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/22.jpg)
Securing the Cover
![Page 23: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/23.jpg)
A Pin used to Keep the Spring in Place
![Page 24: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/24.jpg)
Lower Limit Switch
![Page 25: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/25.jpg)
Mounting Switch under a latch
![Page 26: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/26.jpg)
Wiring a circuit
![Page 27: Sophisticated Design Automatic Tailgate Final Presentation December 5, 2001 Ted Akiskalos June Doan Tarek Elshazly Maggie Kim David Nimitz Sharon Ramey.](https://reader036.fdocuments.in/reader036/viewer/2022062809/5697bfb91a28abf838c9fa62/html5/thumbnails/27.jpg)
DifferencesDesign•Operate from cab with handle
•L-bracket to mount motor only
•Cover for motor only
•Larger spool
•Use existing latch
•Gravity only force
•Circuit
•Raised by slight angle
•Momentary push button
•Four pole/double throw relays
•Rod holding limit switch
•Possible to have tailgate half open
Prototype•Operate from existing tailgate latch
•L-bracket and two straight brackets to mount motor and align spool
•Cover for motor and circuit; brackets added
•Smaller spool
•Removed springs from latch
•Spring Force
•Circuit
•Manual activation
•Push and hold button
•Single pole/double throw relays
•Rubber clasp, extension holding switch
•Safety feature added to prevent this