CONCEPT SELECTION: PROJECT OUTCOMEedge.rit.edu/edge/P12462/public/Poster Senior Design... · Every...
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ACKNOWLEDGEMENTS: FUTURE IMPROVEMENTS: 1) Upgrade the plastic liner to a more durable material. 2) Upgrade tow cable and/or drive pulley. 3) Place windows in the tank walls to allow in water visibility. 4) Upgrade the plywood panels (walls) to sheet metal panels or glass panels 5) Improve rail mounting to tank SELECTED T ANK DESIGN: • 3/8 in (9.525 mm) thick, 2” SQ. (5.080 cm) Angle iron • 1/4 in (6.350 mm) thick, 2” SQ. (5.080 cm) Angle iron • 3/4 in (19.050 mm) thick Plywood • 16 feet (4.877 m) long 80/20 Aluminum • 3/4 hp (559.270 w) Motor • 1/16 in (1.588 mm) diameter Aircraft Cable • 6 in (15.240 cm) diameter Pulleys Model of Tank Assemble Design Picture of Actual Tow Tank ANALYSIS OF T ANK: From Left to Right: Shauna Traxler (ME), Hope Alm (ME), Andres Santizo Matheu (ISE), Tim Buckner (ME), and William Lentlie (ME) Model of Cart Design ANSYS Results for Stresses The ANSYS analysis was done using a hydrostatic force assuming the tank was completely full. The tank wall was supported on the side edges as well as the bottom faces. Meshing was done using a body mesh of 0.50 in (1.27 cm). Stresses, as well as total deflection were calculated. Structurally the tank has a factor safety of 20 with a yield strength of 50 ksi (345 Mpa). The tank also has a factor of safety of 9 for deflection, with an acceptable deflection of 0.03125 in (7.94e-4 m). The next analysis was done to account for outside forces acting on the tank walls. A point load of 200 lbf (889.64 N) acting in the same direction as the water was applied to the weakest point of the static analysis. Results showed that the tank does not yield and the design was acceptable. PROJECT OUTCOME: CONCEPT SELECTION: BRAINSTORM: Proposed concepts for the tank materials. • Wood structure and wood panels • Steel structure and wood panels • Steel structure and steel panels Proposed concepts for rails and cart • Angle iron rails and skate bearings • 80/20 linear motion system • Machined bottom supported rail CONCEPT EVALUATION: A table was created to evaluate each set of concepts. Every concept was used as datum and compared to all other possibilities. The options where ranked taking into consideration and giving a different weight to every stake holder. ENGINEER SPECS OF T ANK: • Tanks dimensions: 16 feet (4.877 m) long, 2.5 feet (0.762 m) wide, and 2 feet (0.610 m) high. • Max cart towing velocity: 3.21 ± 0.10 ft/s (0.950 ± 0.025 m/s) • Max volume of water: 599 US gallons (2,265 L) • 2 modular pieces, capable of being disassembled, moved, and reassembled by 2 people Picture of Actual Cart OBJECTIVE: The objective of the project was to build a small scaled version of tethered hydrofoil to compare with a simulation provided by Dr. Mario Gomes in MATLAB. Team P12462’s goal was to create a tow tank capable of moving a platform at a constant specified speed over the top of a stationary body of water in order to recreate a river flow passing over a hydrofoil. ANSYS Results for Deflection Example of specification verification Cart speed needed to be tested to confirm accuracy of LabVIEW control. Effective Pulley Diameter was an input usedto match measured speeds to expected speeds. 0.92 0.93 0.94 0.95 0.96 0.97 0.98 0.99 13 13.1 13.2 13.3 13.4 Speed [m/s] Effective Pulley Diameter [cm] Cart Speed Variation Measured Speed [m/s] Expected Speed [m/s]
Transcript of CONCEPT SELECTION: PROJECT OUTCOMEedge.rit.edu/edge/P12462/public/Poster Senior Design... · Every...
ACKNOWLEDGEMENTS:
FUTURE IMPROVEMENTS: 1) Upgrade the plastic liner to a more durable material.
2) Upgrade tow cable and/or drive pulley.
3) Place windows in the tank walls to allow in water visibility.
4) Upgrade the plywood panels (walls) to sheet metal panels
or glass panels
5) Improve rail mounting to tank
SELECTED TANK DESIGN: • 3/8 in (9.525 mm) thick, 2” SQ. (5.080 cm) Angle iron
• 1/4 in (6.350 mm) thick, 2” SQ. (5.080 cm) Angle iron
• 3/4 in (19.050 mm) thick Plywood
• 16 feet (4.877 m) long 80/20 Aluminum
• 3/4 hp (559.270 w) Motor
• 1/16 in (1.588 mm) diameter Aircraft Cable
• 6 in (15.240 cm) diameter Pulleys
Model of Tank Assemble Design
Picture of Actual Tow Tank
ANALYSIS OF TANK:
From Left to Right: Shauna Traxler (ME), Hope Alm (ME),
Andres Santizo Matheu (ISE), Tim Buckner (ME), and William Lentlie (ME)
Model of Cart Design
ANSYS Results for Stresses
The ANSYS analysis was done using
a hydrostatic force assuming the
tank was completely full. The tank
wall was supported on the side
edges as well as the bottom faces.
Meshing was done using a body
mesh of 0.50 in (1.27 cm). Stresses,
as well as total deflection were
calculated. Structurally the tank has
a factor safety of 20 with a yield
strength of 50 ksi (345 Mpa). The
tank also has a factor of safety of 9
for deflection, with an acceptable
deflection of 0.03125 in (7.94e-4 m).
The next analysis was done to
account for outside forces acting on
the tank walls. A point load of 200 lbf
(889.64 N) acting in the same
direction as the water was applied to
the weakest point of the static
analysis. Results showed that the
tank does not yield and the design
was acceptable.
PROJECT OUTCOME: CONCEPT SELECTION:
BRAINSTORM: Proposed concepts for the tank materials.
• Wood structure and wood panels
• Steel structure and wood panels
• Steel structure and steel panels
Proposed concepts for rails and cart
• Angle iron rails and skate bearings
• 80/20 linear motion system
• Machined bottom supported rail
CONCEPT EVALUATION: A table was created to evaluate each set of concepts. Every concept was used as datum
and compared to all other possibilities. The options where ranked taking into consideration
and giving a different weight to every stake holder.
ENGINEER SPECS OF TANK: • Tanks dimensions: 16 feet (4.877 m) long, 2.5 feet (0.762
m) wide, and 2 feet (0.610 m) high.
• Max cart towing velocity: 3.21 ± 0.10 ft/s (0.950 ± 0.025
m/s)
• Max volume of water: 599 US gallons (2,265 L)
• 2 modular pieces, capable of being disassembled,
moved, and reassembled by 2 people
Picture of Actual Cart
OBJECTIVE:
The objective of the project was to build a small scaled version of tethered hydrofoil to compare with a simulation provided by Dr. Mario Gomes in MATLAB. Team P12462’s goal was to create a
tow tank capable of moving a platform at a constant specified speed over the top of a stationary body of water in order to recreate a river flow passing over a hydrofoil.
ANSYS Results for Deflection
Example of specification verification
Cart speed needed to be tested to confirm accuracy of LabVIEW control.
Effective Pulley Diameter was an input usedto match measured speeds to
expected speeds.
0.92
0.93
0.94
0.95
0.96
0.97
0.98
0.99
13 13.1 13.2 13.3 13.4
Sp
eed
[m
/s]
Effective Pulley Diameter [cm]
Cart Speed Variation
Measured Speed [m/s]
Expected Speed [m/s]
