Ken Youssefi / HsuEngineering 10, SJSU1 REVIEW QUESTION Wind power is linearly proportional to which one of the following terms? A.Wind Speed B.(Wind Speed) 2 C.(Wind Speed) 3 D.(Wind Speed) 4

Ken Youssefi / HsuEngineering 10, SJSU2 REVIEW QUESTION Which of the following wind turbine designs typically turns faster? A.Drag type design B.Lift type design

JKA_ Engineering Design Engr 10 Introduction to Engineering

JKA_ What do these “creations” have in common?

JKA_ What do these “creations” have in common? (cont.) #include "Main.h" 003d50 cfd9 MOVFF 0xfd9,0xfe6 003d52 ffe6 003d54 cfe1 MOVFF 0xfe1,0xfd9 003d56 ffd9 003d58 0e02 MOVLW 0x2 003d5a 26e1 ADDWF 0xe1,0x1,0x0 003d5c 0e05 MOVLW 0x5 003d60 ec7d CALL 0x24fa,0x0 003d62 f d64 52e5 MOVF 0xe5,0x1,0x0 003d66 6ede MOVWF 0xde,0x0 003d68 6add CLRF 0xdd,0x0 003d6a cfdf MOVFF 0xfdf,0xfe6

JKA_ Common ……. 1.They are “created” for a purpose, a “function.” Most fulfill multiple functions. 2.All have some sort of shape, a “form.” The shape relates to the function, the usage of the device, materials implementation, aesthetics, and many other factors. 3.All are made by using “material.” 4.Virtually all have “cost” considerations. 5.Others have: safety, environmental, simplicity, aesthetics, usability, comfort, …considerations.

JKA_ Functions? Function 1 Functions 1 2 Functions Functions

JKA_ Function, Form, Material + Function? Form? Material? Cost? Safety? Environmental? Usability? Simplicity Comfort? Entertainment? ………………

JKA_ Engineering Design Function: To receive signals from the beacon, analyze, send information to controller. (input/output). Form: Most simple rectangle, except the receivers: semicircle. Reason: usage requires wider angle. Material: Epoxy resin, electronic components

JKA_ The Key Elements of Product Design Function: All products and services have one or more. It is the reason you are building the product. It is the purpose of your design. Form: The final form of a product, or a structure, is the result of many factors: -The way you achieve the function, the “solution”, -The available material, their use, their properties, and their influence on aesthetics, cost, environment etc. Materials: The availability and properties have direct effect on the form of the product: strength, weight, flexibility, weathering, environmental impact, aesthetics, temperature, cost, etc.

JKA_ The Key Elements of Product Design. Function Material Form Cost

JKA_ Importance per Discipline / Product CEMEEECompESWR Function High Form High Medium Low (if any) Material High Medium N/A Aesthetics HighMedium Low* N/A * An enclosure is not considered an engineering design

JKA_ Question 1 The final form of a structure is the result of the following factor(s): a.The use of the material b.The properties of the material c.The way the function is achieved. d.The cost and availability of the material e.All of the above

JKA_ Question 2 The three most important elements of a design are? A.Form, Shape, Looks B.Form, Shape, Size C.Purpose, Scope, Cost D.Function, Form, Materials E.Responsibility, Applicability, Compatibility.

JKA_ Design The Noun a project a sketch to work from a creative activity ‘an arrangement of parts, details, form, color... as to produce a complete artistic unit’ The Verb To form an idea To plan by drawing the outline To sketch To contrive To project with an end in view

JKA_ Design… a definition 'Design is the decision making process by which an idea is transformed into an outcome ” ( product or service)

JKA_ Teamwork Engineering Design

JKA_ Engineering Design is a Process Manpower / Teamwork Materials Methods / Systematic Machinery / Testing Money / Cost Process

JKA_ The Need Research Generate Solutions Implement Test Evaluate Solutions & Select

Let’s watch video about design at IDEO

JKA_ The Engineering Design Process Need for the product or the service There has to be a need for the product or the service. –Who defines it? Society - Government Market: Customer – Consumer Need for: Transportation, Communication, Health, Education Food-processing, preservation, delivery, Defense, Entertainment, Comfort, Business, … E10 Laboratory Projects? Customer Requirements What customer ordered: product or services. (You may have to help your customer define his need)

JKA_ The Engineering Design Process (cont.) Define The Need: Once the need has been established, the first step of the engineering process is to define the problem on hand. BUT, before you define a problem you need to understand it. Evaluate the project constraints. Translate customer requirements into a workable/ engineering concept. What are the requirements/specifications of the turbine project???????

JKA_ The Engineering Design Process (cont.) Gather Information (Research) for all “How to” elements. 10 – 30% of an engineers time can be spend on this step. It is continuous rather than a one step activity (“Learning Curve” applies) –Applicable engineering principles –Materials, properties, procurement. –Tools and equipment, how to operate. –Etc. E10 Research: Aerodynamics, Inventor 2008, Structural, Electrical, Tech. Communications Need Define Problem Research Generate many Solutions Select best one Implement & Test

JKA_ Time, (wks, months) Learning Learning Curve ( Lifelong Learning)

JKA_ The Engineering Design Process (cont.) Brainstorming: An activity designed to generate a lot of ideas/solutions. Quantity is of importance - design has many solutions Build on the ideas of others Focus on Function - No criticism - All ideas are welcome -No limits or boundaries -No hesitation Sketching : a graphical presentation of an idea Need Define Problem Research Generate many solutions Select best one/ Implement Implement & Test

JKA_ The Engineering Design Process (cont.) Modeling Functional Performance Data collection Data Analysis Decision Analyze failures Redesign Utilize alternate solutions Need Define Problem Research Generate many solutions Select best one/ Implement Test

JKA_ The Engineering Design Process Constraints: Turbine height = 17 in Stiffness vs. light weight Criteria: “constraints” you place on your design, for best performance, based on your design, materials, safety, environmental… If you had to build the turbine: Land, excavation, cost, location, access

JKA_ 2009 design development final test Ship to MFG Beyond the design steps Requirements -Performance -Customer -Environmental -Legal -Repeatability -Reliability -Quality -Form -Material -Cost -Prototypes -Function -Form -Material -Models

JKA_ The Engineering Design Process Documentation –Design Specifications –Assembly Procedures –Test Procedures –Materials Specification –Technical Communications To Manufacturing for mass production

JKA_ References stores.implex.net/minnesotamedical/index.php?...stores.implex.net/minnesotamedical/index.php? ec.europa.eu/.../eu10/pictures/slovakia_en.htmec.europa.eu/.../eu10/pictures/slovakia_en.htm 7 chestofbooks.com/crafts/popular-mechanics/Amachestofbooks.com/crafts/popular-mechanics/Ama 8 speedhunters.com/archive/2008/07.aspxRemove frame speedhunters.com/archive/2008/07.aspxRemove frame E10 Lecture.P.H. 11 E10-SJSU

JKA_ seasonsofgrace.blogspot.com :