Dimension of Structure
Tuesday, 29 April 2014
ASSIGNMENT 9
9.1 Examine the detail drawings for a product designed by a nearby manufacturing company. Be sure you can identify the actual shape, dimensions, and tolerances. What other information is contained in the drawing?
ASIGNMENT 8
Assignment 8.1
Look your design to find some common consumer product. Identify which are primary modular, integral, or mixed product architecture.
______________________________________________________________________
Modular product
Modular products may be defined as machines, assemblies or components that accomplish an overall function through combination of distinct building blocks or modules. A modular product development is one in which the input and output relationships between components, that is, the component interfaces, in a product have been fully specified and standardized.
To exploit the benefits of modular product development, it is crucial to have modularization in mind from the start of the design process, and not only as an afterthought when all components are developed.
Integral product architecture
Integral product may be defined as functional elements are implemented by multiple chunks, or a chunk may implement many functions and interaction between chunks is poorly defined. Besides, integral architecture generally increase performance and reduces costs for any specific product model.
ASSIGNMENT 7
QUESTION
In the search for more environmentally friendly design, paper cups have replaced Styrofoam cups in most fast-food restaurants. These cups are less effective insulators and the paper cups often too hot for the hand. A design team is in search of a better disposable coffee cup. The designs to be evaluated are: (a) a standard Styrofoam cup, (b) a rigid injection-molded cup with a handle, (c) a paper cup with a cardboard sleeve, (d) a paper cup with a pull-out handle, and (e) a paper cup with a cellular wall. These design concepts are to be evaluated with the Styrofoam cup as the datum.
The engineering characteristics on which the cups are evaluated are:
- Temperature in the hand
- Temperature of the outside of the cup
- Material environmental impact
- Indenting force of cup wall
- Porosity of cup wall
- Manufacturing complexity
- Ease of stacking the cups
- Ease of use by customer
- Temperature loss of coffee over time
- Estimated cost for manufacturing the cup in large quantities
Using your knowledge of fast-food coffee cups, use the Pugh concept selection method to select the most promising design.
ANSWER
Pugh Concept Chart 1
Pugh Concept Chart 2
From the result, we can conclude that concept C has the highest number of positive and lowest number of negative compared to other design concepts. So, we choose design concept C which is paper cup with cardboard sleeve to replace the Styrofoam cup.
ASSIGNMENT 6
Create a concept map to track your progress through a team brainstorming exercise. Show your map to those present during the session and record their comments.
Wednesday, 9 April 2014
Summary of Survey on Usage of Laundry Dryer
Eco-Design Laundry Dryer Survey
What is your gender?
Male | 24 | 44% |
Female | 31 | 56% |
What is Your age?
18-20 | 8 | 15% |
21-23 | 22 | 40% |
24-26 | 14 | 25% |
27-29 | 11 | 20% |
Who are you?
I am full time student | 21 | 40% |
I am housewife | 11 | 21% |
I am working 8-5 every day | 17 | 32% |
Other | 4 | 8% |
when do your usually do the laundry
Everyday | 8 | 15% |
Every two day | 20 | 36% |
Weekend | 20 | 36% |
Twice a week | 7 | 13% |
Product Evaluation question
Did you think to dry your clothes immediately after washing are important?
Yes | 50 | 91% |
No | 5 | 9% |
Did you have laundry dryer machine at home or workplace?
Yes | 26 | 47% |
No | 29 | 53% |
Did you always a lot clothes for drying at laundry dryer machine after washing?
Yes | 32 | 59% |
No | 22 | 41% |
Did you always sent to dobi for washing or drying?
Yes | 11 | 20% |
No | 44 | 80% |
Are your house have part for cloth dry?
Yes | 34 | 62% |
No | 21 | 38% |
Are environment at your house always warm and wet?
Yes | 35 | 64% |
No | 20 | 36% |
Did you heard a laundry dryer machine in your life?
Yes | 44 | 80% |
No | 1 | 2% |
Sometimes | 10 | 18% |
Dryer is available for decreasing bad smell in your cloth after wearing
Strongly Disagree | 2 | 4% |
Disagree | 6 | 11% |
Neither | 18 | 32% |
Agree | 21 | 38% |
Strongly Agree | 9 | 16% |
Dryer is available for drying weight cloth for example jeans, coat
Strongly Disagree | 2 | 4% |
Disagree | 7 | 13% |
Neither | 9 | 16% |
Agree | 30 | 55% |
Strongly Agree | 7 | 13% |
Dryer is so hot for drying your cloth
Strongly Disagree | 1 | 2% |
Disagree | 16 | 29% |
Neither | 18 | 33% |
Agree | 17 | 31% |
Strongly Agree | 3 | 5% |
Dryer can make drying process for our cloth more easy
Strongly Disagree | 2 | 4% |
Disagree | 0 | 0% |
Neither | 6 | 11% |
Agree | 33 | 60% |
Strongly Agree | 14 | 25% |
What would you look for in a laundry dryer?
Cheap | 30 | 21% |
Portable | 23 | 16% |
Fast | 46 | 32% |
Efficient electricity | 34 | 24% |
Not bulky | 11 | 8% |
In your opinion, what are other criteria of an ideal laundry dryer that you would like to see?
-easy to use, cheap, portable,
- long lasting, high quality, save electricity, fast drying
- Faster and able to handle in simple way
- Cheap fast and electrically efficient
- Size can be vary according space available at my apartment
- Source of power: whether electricity, liquid gas, etc.
- More efficient
- Efficient management
- Affordable price - Environmental friendly
- Conducive environment for worker and customer
- Has humidity sensor
- temperature changeable
- auto setup degree before the machine starts.
- The dryer can spray good smell while drying
- Cheap. Light. Easy to store price and quality
- user-friendly
- easy to store after used it. i think to have portable and light cloth dryer
- Fast, effiency and cheap
- Compact
Wednesday, 2 April 2014
ASSIGNMENT 5
Where would you find the following information?
1.
The services of taxidermist
-
Search engines (Google, Yahoo, Bing)
-
Department of Natural Resources or Conservation
-
Natural history museums
2.
A consultant on carbon-fiber-reinforced
composite materials
-
Search engines (Google, Yahoo, Bing)
-
Engineering professional organizations
-
Contact related suppliers
-
Contact university academic staff
3.
The price of an X3427 semiconductor chip
-
Search engines (Google, Yahoo, Bing)
-
Contact related suppliers and manufacturers
4.
The melting point of osmium
-
Search engines (Google, Yahoo, Bing)
-
Engineering handbooks and text books
-
Related journals
5.
The proper hardening treatment for AISI 4320
steel
-
Search engines (Google, Yahoo, Bing)
-
Engineering handbooks and text books
-
Related journals
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