1. Explain robust design, quality loss function, system design, parameter design, tolerance design
Answer:
1.1. Robust design:
Though robust design can be explained in different way, it can be generalized to: one step/stage of product design development process at which design experiment is made on multiple factors so that to minimize the effects of variation without avoiding the causes (since they are too difficult or too expensive to control).
1.2. Quality loss function:
It is an equation developed by Japanese business statistician Dr. Genichi Taguchi for estimating the loss of quality resulting from the deviation of a product characteristics from its intended condition (target value). Mainly quality loss is expressed in terms of money lost.
Generally, it is known that the loss progressively increases as variation increases, more precisely, Dr. Genichi Taguchi, suggests that the losses increases geometrically as the square of the deviation from the target.
1.3. System design:
System level design is the conceptualization stage of the product design. At this stage new ideas or concepts and the knowledge at which the team members gained from their education and experience will be utilized to determine the right selection of materials, geometry of parts, processes to be followed and design factors that will satisfy functional and economical specifications. To achieve an increase in quality at this level requires innovation, and therefore improvements are not always made.
1.4. Parameter design:
In parameter design stage the system variables are experimentally analyzed to determine how the product or process reacts to uncontrollable “noise” in the system; Parameter design is related to finding the appropriate ...
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...ane M. and Taguchi, Shin “The Taguchi Approach to Parameter Design” Quality Progress, Dec 1987. (http://www2.isye.gatech.edu/~roshan/publications/Taguchi.pdf)
4. Phadke, Madhav S. Quality Engineering Using Robust Design Prentice Hall, Englewood Cliffs, 1989. (http://www.e-formacion.com.mx/public_msalas/mis_docs_laptop/My%20eBooks/PDF/Estad%C3%ADstica/Quality%20Engineering%20Using%20Robust%20Design.pdf )
5. http://www.businessdictionary.com/definition/quality-loss-function.html#ixzz31zDnGln0
6. http://cs.anu.edu.au/courses/ENGN8101/Loss%20functions-lecture%205.pdf
7. https://controls.engin.umich.edu/wiki/index.php/Taguchi_quality_loss_function_and_specification_tolerance_design
8. http://documentation.statsoft.com/STATISTICAHelp.aspx?path=Experimental/Doe/Overview/TaguchiMethodsSignaltoNoiseSNRatios
9. https://onlinecourses.science.psu.edu/stat503/node/74
The design was a laboratory experiment, which allows the experimenter to establish a cause-effect relationship between the independent and the dependent variable.
Materials go to the factory → products come out and go to customers → companies do consumer research → companies do design of product + service and re-design → then it will affects three parts 1) materials; 2) processes; 3) product. As a result, it will improve the process.
The Quality control mechanism needs to identify the ability of parts in the space shuttle to face reactions from wind, humidity, temperature etc as well make sure the design measures are 100% accurate and the necessary resources are allocated in the designing process to achieve optimum quality in design and should always try to be proactive rather than being reactive which can reduce quality failure cost as well increase effectiveness of the design to face any vulnerabilities.
Design thinking process has eight generation stages: observation or analysis, framework, imperative or facts, solutions or alternatives, alternative evaluation and concept selection, implementation, construction, and post occupancy evaluation.
... al. (2011) gives a mixed integer programming (MIP) method which is useful for constructing orthogonal designs.
9. Lofgren, G.Q. "Quality System Registration: A Guide to Q90/ISO 9000 Series Registration." Quality Progress, May 1991, p. 37. 10.
...ld 318). The costs of a quality system must be managed so a reasonable value-to-price-relationship can be achieved. High quality will help a company increase profits through lower costs. It is critical that management focus on long term objectives instead of taking a limited outlook on growth and market share. The strategy of focusing on the customer and quality will equate to greater market share and higher profits. Reducing costs should be part of the continuous improvement process. Strategic cost management is the process of utilizing cost information to formulate and communicate strategies to all levels of the organization. A balance must be obtained to provide the customer with a quality product at a cost that provides for a profit for the company. The potential customer is becoming more and more conscious of quality. It makes sense for a business to cut their costs by improving the quality of the product thereby enhancing the appeal of a product or service in the market place. The challenge is for each business to strive for the kind of business culture that will succeed in spite of the unknown and the unknowable. The quality management philosophy searches for this culture.
The systematic design process is a design process that solves a problem by not only observing the problem but also observing the natural environment of the problem and other systems that the problem interlinks. This article seeks to explore and explain how three different books, The Mechanical Design Process by David G Ullman, Engineering Design: A systematic Approach by Pahl G, Beitz W, and Engineering Design: a Project Based Introduction by Clive Dym and Patrick Little; explain the systematic design processes and the instructional design.
In the past decades, there has been a heated debate concerning whether design aesthetic or functionality should be the core of industrial design. Some believe design should be purely aesthetic. while others believe design should be appealing and functional. An aesthetic design should be visually appealing. On the other hand, a functional design focuses towards to the practicability of the design. However as a designer, I strongly believe a well executed design should be functional while maintaining a high level of visual aesthetic.
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Kendall, K. & Kendall, J. (2008). Systems Analysis and Design. Upper Saddle River, NJ: Pearson Custom Publishing.
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