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== Acoustic Dampening Project Plan ==
== Acoustic Dampening Project Plan ==
Our collaborative efforts are to stunt the echoing problem from the ceiling.
With approximately 55 feet in length the FOTD learning center has an ample situation.
(Web or book reference needed: Lennard Berneck, Noise Pollution and Vibration Control)
More text and figures will be inserted here as well.
More text and figures will be inserted here as well.



Revision as of 18:56, 14 April 2012

Template:ENGR215inprogress

Abstract

The panels and banners shown in (figure 1) were designed and built to improve the acoustics at the Friend's of the Dunes Nature Center. Team SAND consist of engineering 215 students from Humboldt State's 2012 spring semester. We have taken the challenge with a weighted criterion in mind. Safety and Economic feasibility are our greatest concerns.

Acoustic Dampening Project Plan

Our collaborative efforts are to stunt the echoing problem from the ceiling. With approximately 55 feet in length the FOTD learning center has an ample situation. (Web or book reference needed: Lennard Berneck, Noise Pollution and Vibration Control)

More text and figures will be inserted here as well.

Background

Problem Statement and Criteria

Criteria Weight Description
Safety 10 Must be designed to...
Aesthetics 8 Design must be aesthetically pleasing.
Cost 3 Entire design must cost less than $400.
Durability 5 Must last until Humboldt Coastal Nature Center's remodel
Inspiration 7 Design inspirational quality of using alternative building methods.
Ease of Maintenance and Installation 7 Design must be easy to install and free of a lot of maintenance
Functionality 10 Design must improve acoustics within Humboldt Coastal Nature Center.

Description of final project

Acoustic panels and acoustic banners are used to improve the acoustics within the Humboldt Coastal Nature Center. The acoustic panels will be filled with a material that is recycled, and will diffuse sound well. Some recycled, sound absorbing material that are being considered are newspaper, sheared wool, packing peanuts, egg cartons, and dry beachgrass. The panels are constructed with 2x4s, burlap fabric, a recycled sound absorbing material, and chicken wire. The panels are mounted to the walls in the open part of the building. We positioned them here because it is where most of the visitors gather, so this is the area that has the greatest sound generation in the building. The Acoustic banners are hung between the already existing light fixture mounts in the Eastern half of the building and hung vertically between the light fixture mount and the light fixtures themselves in the Western half of the building. Both types of banners are made from a long strip of fabric. For the banners hung between the light fixture mounts there is a specific rigging system. The ends of the banners are secured in between two pieces of wood and bolted together and tightened with a wing nut. A cable is then attached to the banner and then attached to the light fixture mount.

Fig 2: Google SketchUp of the position of the acoustic panels and banners Section

Costs

Material Costs

Material What We Paid Retail Price
Burlap $150.00 $150.00
Shipping and Handling $5.00 $5.00
Concrete Fasteners (4x) $12.00 $12.
Wood $32.00 $84.00
Lag Bolts (12x) $22.68 $22.68
Newspaper Donated $12
ChickenWire (2'x25') $15.53 $15.53
Total $242.21 $284.21

Design Hours

The image on the right displays the total number of hours spent on each aspect of the design project.

Fig 1: Cleaning out the old filter


Testing Results

How to build

Image: Panel Build Step 1.jpg‎
How to Build Acoustic Panels

Discussion and next steps

References

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