Fig 1: Team SAND
Project data
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## Abstract

This page is for the Spring 2012 Humboldt State Engr215 Introduction to Design course and project. This specific design was made for the Friends of the Dunes' visitor center to help improve the acoustics within the center's main room. This page will provide a background of the problem and solution, description of the final design, costs of materials and time, a "how to build" this yourself section, discussion section, and finally references used for the conception of this project.

## Acoustic Dampening Project Plan

The acoustic dampening system is a combination of the use of acoustic panels and banners. This system is large, soft, and porous. This combination allows the panels and banners to intersect sound waves and absorb and/or reflect sound waves to decrease the reverberation of sound throughout the Humboldt Coastal Nature Center. This system is made through alternative building methods such as recycled materials as well as being relatively cheap. These systems are required to be held up securely since they are installed on the ceiling and walls and could possibly fall. A combination of strong mounting systems and light weight components for panels and banners is key for the success of the system.

## Background

Friends of the Dunes (FOTD) is a non-profit organization based out of Manila, California. FOTD objective is the conservation of coastal environments through ecosystem restoration, education programs, and stewardship. Their visitor center known as the Humboldt Coastal Nature Center (HCNC) is a former home owned by the Stamps Family. Designed and constructed from an earth shelter kit the house is mainly constructed from concrete. Therefore the main room at the HCNC has poor acoustics due to the concrete and unique half cyclical shape of the room.

## Problem Statement and Criteria

Criteria Weight Description
Safety 10 Must be designed to...
Aesthetics 8 Design must be aesthetically pleasing.

### Design Hours

The total design hours were 107.8 as shown in Figure 3.

## How to build

1
Figure 1:
First step of building the frames of the acoustic panels. Measuring 2x4's to appropriate lengths for your individual design.. (Photo by Amy Gabriel)
2
Figure 2:
Second step of the frame building process is then to cut to boards to appropriate lengths. A chop, skill, or table saw works best for this step... (Photo by Amy Gabriel)
3
Figure 3:
Putting the cut sides of the frame together which are ready for assembly... (Photo by Amy Gabriel)
4
Figure 4:
Drilling pilot holes on the joint. One and half inch screws were then used to attach the two sides... (Photo by Amy Gabriel)
5
Figure 5:
Repeat step 3 and 4 until frame is fully assembled... (Photo by Amy Gabriel)
6
Figure 6:
Using a newspaper template, mark on the previously cut fabric to properly fold on the corner of the panel frame. This can be done in multiple ways and is mostly based on the users preference.... (Photo by Cole Humphrey)
7
Figure 7:
After cuts have been made. Stretch fabric over frame and staple. Depending on the fabric the may require multiple people and/ or stretching processes.... (Photo by Michael Harrow)
8
Figure 8:
Fold left over fabric corner over and staple within frame. We did not cut it due to fear of fraying. The corners will be hidden once panel is filled.... (Photo by Michael Harrow)
9
Figure 9:
Panels after fabric covering.... (Photo by Michael Harrow)
10
Figure 10:
Fill fabric covered panel with filling such as newspaper, dry trash, wool, or (but not limited to) insulation. Then cover with chicken wire and staple secure.... (Photo by Kayla Morris)
11
Figure 11:
Drill a centered 1/8 inch hole at the top of the frame for a 2 inch long bolt to connect to the mounting bracket..... (Photo by Kayla Morris)
12
Figure 12:
Panel is finished!..... (Photo by Kayla Morris)

## Discussion and next steps

The acoustic banners and panels were built to last at least ten years or when Friends of the Dunes decide to go through with their remodeling plans. The panels were also specifically designed so that they can be taken off the walls at anytime or during the inspections every couple of months. This process is as easy as removing the top connecting bolt from the brackets which the panels are resting on. Possible future plans for the banners and panels consist of painting on wildlife or ocean designs by Friends of the Dunes.

## References

Page data
Type Project Cch250, Matthew Brown, Michael 2012 CC-BY-SA-4.0 328 Cch250, Matthew Brown, Michael (2012). "FOTD Acoustic Dampening". Appropedia. Retrieved August 9, 2022.
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