College of Engineering King Saud University Feb 10, 2012

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Presentation transcript:

College of Engineering King Saud University Feb 10, 2012 GE105: Introduction to Engineering Design An Overview of Engineering Design College of Engineering King Saud University Feb 10, 2012

Engineering Design Importance of Engineering Design 70% of a product’s total cost is determined by its design Costs Include: Material costs Facilities Tooling Labor Other support costs Studies have shown that 50 to 80% of the life cycle costs of products are influenced by engineering design

Engineering Design Engineering design is the process of devising a system, component or process to meet desired needs. It is a decision making process in which the basic sciences and mathematics and engineering sciences are applied to convert resources optimally to meet a stated objective. Among the fundamental elements of the design process are the establishment of the objectives and criteria, synthesis and analysis, construction, testing and evaluation. It is essential to include a variety of realistic constraints such as economic factors, safety, reliability, aesthetics, ethics and social factors.

ABET Objectives Each educational program must include a meaningful major engineering design experience that builds upon the fundamental concepts of mathematics, basic sciences , the humanities and social sciences and engineering topics, and communication skills. Design is too broad for a single course. The scope of the design experience within a program should match the requirements of practice within that discipline. All design work should not be done in isolation by individual students; team efforts are encouraged where appropriate Many projects at the Junior/Senior level are team oriented

Engineering What is engineering? What is your experience with engineering? What does it mean to learn to be an engineer in school? Can you name one thing in this room that was not developed, produced, or installed by an engineer? Can you think of a profession that is affecting your life more pervasively than engineering? Engineering is the Art of Design Starts with a need and end with a product Even in the smallest and most remote places on earth, engineering is there shaping life and the environment

Science versus Engineering Science : The study of nature and natural processes Engineering: The use of knowledge of nature and natural processes to solve problems "Scientists discover the world that exists; engineers create the world that never was." - Theodore Von Karman

Who is the Best Engineer? “The best engineer is the person who can provide the simplest and more effective solution to solve a problem” K. Åström Engineer Knowledge Skills Solving a problem Develop a new product Improve service

The Design Process Steps Problem statement Search and re-search Brainstorm/Generate Creative Ideas Analyze alternative solutions Arrive at an optimum solution Construction, analysis and testing Final Evaluation Communication

Problem Statement Examples Remarks: 1. Objectives are function of needs 2. Objectives should be SMART Specific Measurable Achievable Realistic Timebound Only when you can specify the problem can you hope to achieve your goal Loss of efforts and efficiency occurs when trying to solve un-clear problems

Importance of Understanding What the Project is About: of Objectives, Need and Problem Definition

Search for alien life on other planets! Other Steps Search for alien life on other planets!

Creativity can lead to all kind-of ideas Creative people usually have busy thoughts…

Evaluations Alternative Energy Solutions One possible solution!!

Step 6 – Construction, Analysis and Test Motor Prototype Testing Break Squeal FEA Analyses Toyota RAV4 Prototype Testing Valve Flow CFD Analyses

The Iterative Design Process

Final Steps The final product from such a design process is usually a nice, sleek, powerful and efficient product