Materials & Structures 2 Final Report

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Emergency PhoneBox

description

This is the hand in quality report for the Materials and Structures 2 project.

Transcript of Materials & Structures 2 Final Report

Page 1: Materials & Structures 2 Final Report

Emergency PhoneBox

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Contents Page

1. Front Cover

2. Contents Page

3. Brief - Introduction to Problem & Solution

4. Festival Research

5. Current Products/Services Research

6. Technology Research

7. Construction 7.1 Material Research 7.2 Manufacturing Research

8. Development Sketches

9. Development Sketches

10. Development Sketches

11. Development of Parts with Dimentions

12. Final Design

13. Structural Analysis

14. Ergonomics

15. Carbon Emissions

16. Final Design Proposal

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Project Brief

This design proposal is in response to the request for Tender by the organisers of T in the Park to provide an emergency phone box at the festival. The design must be easy to use by the public. It must also be robust and be able to withstand the elements. The design must also be a non-perminent product which can be placed before the festival, not move during, and be removed after the festival. The design must also be self-sufficient with energy production and use.

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Festival

The product can be used at any festival anywhere in the country, or worldwide. The festival that will be used for context is T in the Park in Kinross, Scotland. The festival sees over 80,000 people arrive each day over the three day event to party with the 60,000 annual campers to create the third largest city in Scotland. Around 45% of T in the Park tickets are bought out with Scotland making the festival one of the largest internationally. The high concentration of people adds a high amount of strain to the mobile network. The festival deploys additional mobile phone masts but this does not stop the phenomenon that occurs when high numbers of people have mobile devices in a relatively small area, which causes mobile devices to be connected to the network but not able to send/receive calls and text messages.

T in the Park is the largest Carbon Neutral Festival in the world as the organisers have a detailed plan to reduce, and offset any produced Carbon Dioxide. The pint of Tennent’s Lager you enjoy on site is the freshest available. Not on is it brewed just 36 hours before T in the Park speci�cally for the weekend, it travels a mere 44 miles from brewery to Balado. The cup recycling initiative introduced in 2006 and developed in 2007 saw T in the Parkers return over 75% of cups to designated recycling points.

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Current Products/Services

The only major competitor to this product would the traditional phone box. Since that is outside of the festival arena it isn’t in direct competition, however the product does provide the same function as the traditional phone box, so a comparison will be shown to represent a competitor.

The traditional Phone Box:Enclosed AreaConstructed from a durable Metal and Glass/PerspexHard wired into the telephone network (doesn’t use the Mobile Network)

Proposed ProductOpen, Easily accessible AreaConstructed from Concrete, Plastic and GlassCan be hard wired, but is primarily connected to the Mobilenetwork and to the Emergency Frequencies.

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Development Sketches

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Development Sketches

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Development Sketches

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Final Design Proposal

Festival EmergencyPhoneBox

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Design Detail

This view shows the cut section of the HDPE and how it has been used to connect the Glass to the main body.

This view shows the stainless steel caps on the steel bolts that holds the main body to the bass unit.

This view shows how and where the bolts are positioned between the main body and bass unit. It also shows the other angled side to the bolts.

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Materials & Manufacturing

The materials considered in this design are mainly used because of their light weight and durable qualities. The base of the product has to be heavy enough to stop the product from toppling over. A few materials were considered. A brick construct was considered because it is relatively cheap; however this would lead to a product that would have to be built onsite and then demolished once the event was concluded. A sand �lled plastic base was then considered, but this would too expensive and prone to failure after prolonged use. Finally, a moulded concrete base was considered. This can be made with relative ease, via a moulding process. It provides the required weight to stop the product from falling over and can be �nished so that it is smooth and gives an appealing look. Concrete is also highly durable against the elements and can withstand high amounts of force before failing. The main body will be constructed out of rotationally moulded High Density Polyethylene (HDPE). This allows the body to be extremely lightweight for its size and strength. The HDPE is a thermoplastic and resists many chemical solvents, bases and acids. However HDPE in its natural form is heavily affected by UV radiation. To counter act this UV absorbing additives are added to the HDPE to protect it against UV radiation Anti-Oxidants are also added to stop the plastic reacting with the oxygen in the air and degrading over time. The �nished product from the mould would then be altered to �t the protective glass to the sides of the product. The glass itself is toughened shatterproof glass and is ordered to size from a supplier.

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The technology involved with this product is very simple. The phone is connected to the emergency services via a boosted mobile phone network. This system is reserved for use by speci�c devices when an accident occurs or is being reported. The technology is widely used in smart devices in cars.

The BMW iDrive system was looked at for research purposes. This system is used in most high end BMW’s. The system is deployed when the car is involved in a car accident. The on-board sensors within the car detect when a car accident has occurred. If the accident is severe enough a call is placed to the BMW Driver Assist call centre. An employee then tries to make contact with the driver, and if this fails then a call is placed to the emergency services. The standard connection to the mobile network is using EDGE connectivity. However if the car is in a remote area (where standard mobile signals are not received), and the on-board sensors deem the accident to be severe and contact cannot be made with the driver, an emergency call is made over this boosted signal. The iDrive uses a commercially available version of this network and uses the 2.5 GHz frequency bandwidth, but only in extreme circumstances.

This technology is going to be used so that in an emergency situation at a festival, the public can still get in contact with the emergency services when their mobile phones can’t connect to the network.

Technology

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Structural Analysis

The structural forces are shown with in the graphic in the bottom left (red lines). The horizontal forces exerted on the product will be caused mainly by natural forces, like the wind, snow and also the products on weight, set on by gravity. The Lateral forces exerted on the product will be mainly the wind and also the possibility on humans interacting with the product by using it or by leaning on the exterior.

Shown in the main graphic is where the products centre of mass is (green line). Being this low it stops the product wanting to topple over and cause damage and possible injury. It also reduces the need to tether or bolt the product into the ground.DeCom

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Ergonomics

The product has been designed around the human, as that would be the primary user. The average human is 6ft 1” and weighs 70.8kgs. The above graphic shows how the average human would look standing next to the product. The product can comfortably �t one human, who can comfortably complete the task at hand. The graphic also shows the height of the handset, the key element of the product. This has been set to an average height of a human. The phone isn’t a stretch to reach and doesn’t require the user to bend over.

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Carbon Emmissions

Carbon emissions are calculated by each individual material:

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Design Controls

The design control process, is used to keep a standard for reviewing and testing the product at various stages through out the design process. At each stage there are veri�cation tests to make sure the product continues to �t the brief, and also there are three design reviews that take place (shown above) to show what work has been completed and to show progress with in the design.

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Design Review

The concept itself can be life or death. Due to this, I had to take into account every aspect of the product and make sure any problems and technical issues were designed out, from the beginning.

The materials and manufacturing processes were new to me, and required a lot of research and material sampling. I chose the colouring because in a public environment the bright white of the HDPE Plastic would represent emergency contact, also with decals displaying 911 or 999. The plastic, once treated in the manufacturing process, would be durable and could withstand the elements. The relative lightweight of the body and roof section (which also contained the solar panels used to power the product) allowed for the base to be moulded from concrete and house the majority of the electronics and batteries. The centre of mass, however, was relatively low and allowed the product to be free standing and not requiring being ‘bolted’ to the ground.

Over all the design is practical, sleek and well designed. In my personal view it is perfect for the job at hand and will perform admirably.

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Intelligent Electronics have pioneered in emergency technology for the last decade, producing products that are used across the industry. From hospitals, ambulances to the research facilities to event �rst aid.

The company aims to create a carbon neutral product line by offsetting any CO2 that is produced with its Green Plan, where the company plants trees around the world. The company’s headquar-ters in London (CAD Model shown above) is 100% self-sustaining. The building generates all of its own power and deals with its own waste, except for medical waste, which is disposed of properly and safely.

The company has strong ethics and believes in a diverse and strong workforce. With over �ve thousand people working for them in the UK alone. Globally the company employes over �fteen thousand people, in �ve countries, and is growing every year.

The company also employes a sustainability program where it will recycle, dispose or reuse any of its products, where safe to do so.

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References

iDrive Research: http://www.techradar.com/news/car-tech/bmw-idrive-the-ultimate-guide-1085113http://www.gsmarena.com/glossary.php3?term=edge

T in the Park Research:http://www.safeconcerts.com/festivals/t-in-the-park/t-in-the-park-facts.asphttp://www.tinthepark.com/home.aspx

Cellular Research:http://www.tekniskamuseet.se/mobilen/engelska/1980_90.shtmlhttp://www.mobilen50ar.se/eng/FaktabladENGFinal.pdf

Materials Research:http://www.keytometals.com/page.aspx?ID=CheckArticle&site=kts&NM=62http://doors4uk.co.uk/wp-content/uploads/Glass-VSG-premium.jpg

Ergonomic Research:http://www.buzzle.com/articles/average-male-weight.html

Carbon Emissions Research:http://ecofx.org/wiki/index.php?title=Raw_Materials