FSE 100 Team 12 Project Deliverable 3

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Project Deliverable 3: Part 1 Band in a Box:

Project Deliverable 3: Part 1 Band in a Box Team 12: Rufus Dugat, James Serrano, Janelle Hanaseth

Problem Definition:

Problem Definition Hired by "Maroon (and Gold) 4" to design and create instruments capable of playing the ASU Fight Song that are small in size while maintaining an aesthetically pleasing sound at the lowest possible cost.

Requirements:

Requirements Fit into ONE 2ft x 2ft x 2ft stage box Instruments must be aesthetically pleasing Creative and Innovative At least one string instrument, one percussion and one wind Sketch and packing instructions to prove instruments will fit in specified area. No more than 10 feet in length of pipe may be used for all instruments (combined) No more than 6 feet in length of string may be used for all instruments (combined) Cost must be under $15 per instrument

Proposed Design Photos:

Proposed Design Photos Moraca - Medium Percussion Xylophone - low Percussion Triangle - High Percussion Janelle

Justification of our Proposed Design:

Justification of our Proposed Design The requirements and criterion used to make our final design decisions were: Space consumption Cost Frequency Range Ease of construction Aesthetics

Vertical Bells:

Vertical Bells Unique Design Features: Tubular Bells. Thin design. Allows for six different notes. Cost efficient. Gives great tone.

Vertical Bells Equations & Calculations:

Vertical Bells Equations & Calculations %frequency values - 100Hz to 1900Hz f=linspace(100,1900,20); %speed of sound in bar - 1060m/s sb=1060; %Radii of tube- or-0.0191m, ir- 0.0107m or=0.0191; ir=0.0107; %K value for tube kt=sqrt((ir^2+or^2)/4); %tube length cantilevered tlc=sqrt((1.194^2*pi*kt*sb)./(8*f));

Vertical Bells Design Requirements & Expected Cost:

Vertical Bells Design Requirements & Expected Cost Thin design makes it ideal for a 2x2x2ft. Box. Uses only 5.5ft of PVC Pipe. Total cost is $11.63. Which is under the cost requirement by almost 22.5%. Visually aesthetic. Materials Qty. Cost 1”x4”x8ft. Pressure treated wood 1 $3.97 ½”x10ft. PVC Pipe 1 $1.72 1/4x1½” Bolt 6 $0.61x6=$3.66 ¼” Nut 6 $0.18x6=$1.08 1½” Wood Screws 4 $0.30x4=$1.20

Xylophone:

Xylophone Unique Design Features: Clean lines 7 different notes ranging from C4 to D5 to provide quality sound Low cost production Durable Easy to pack Easy to use

Xylophone Equations & Calculations:

Xylophone Equations & Calculations %frequency values - 100Hz to 1900Hz f=linspace(100,1900,20); %speed of sound in bar - 3600m/s sb=3600; %thickness of rectangular bar - 0.0254m rb=0.0254; %K value for bar kb=rb/3.46; %(6)bar length simply supported bls=sqrt((3.0112^2*pi*kb*sb)./(8*f));

Xylophone Design Requirements & Expected Cost :

Xylophone Design Requirements & Expected Cost 12”X12”X2” Compact design fits size requirements Aesthetically pleasing Below budget at $7.44 total cost Materials Qty. Cost 1”x4”x8ft. Pine Wood 1 $4.44 1½” Wood Screws 10 $0.30x10=$3.00

Lap Harp:

Lap Harp Unique Design Features: 10 different strings. Thin design. Frequency range from 1864-784 Hz. Cost efficient. Simplistic design.

Lap Harp Equations & Calculations:

Lap Harp Equations & Calculations %frequency values - 100Hz to 1900Hz f=linspace(100,1900,20); %tension of string - 150N t=150; %linear mass density - 0.072kg/m l=0.072; %String length for different frequency values sl=sqrt(t/l)./(2*f);

Lap Harp Design Requirements & Expected Cost :

Lap Harp Design Requirements & Expected Cost Total cost is $13.70. Will fit in 2x2x2ft box and leave plenty of room. Minimal construction design Less than 72” of string used Materials Qty. Cost 67.05” of Nylon String 1 $3.00 3/4 in. x 2 ft. x 2 ft. Plywood Panel 1 $9.30 2½” Wood Screws 20 $0.07x20=$1.40

Team 12 Conclusion :

Team 12 Conclusion We will be able to successfully complete our task given to us by “Maroon (and Gold) 4” Three instruments fit well into ONE 2ft x 2ft x 2ft stage box Instruments are aesthetically pleasing Instruments produce quality sound Creative and Innovative No more than 10 feet in length of pipe used No more than 6 feet in length of string used Final cost will fall well under our $15 per instrument budget

References:

References EZ Lumber (for pricing) - http://www.ezwoodshop.com/lumber-prices.html Home Depot (wood panel and screws) - http://www.homedepot.com Strings by Mail (string cost) - https://www.stringsbymail.com Slide Image - http://www.publicdomainpictures.net Slide Image - http://www.bingimages.com

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