This document discusses concepts in engineering design. It provides an overview of design conceptualization and philosophies. It discusses the need for systematic design and past design methods. It also discusses product lifecycles, types of innovation, and techniques for concept generation and screening. The document outlines the course contents, which include engineering design models and case studies. It discusses evaluating design concepts through exploratory, assessment, validation, and comparison tests.

1. CONCEPTS
IN
ENGINEERING DESIGN
Dr. G.Praveen Kumar
Assistant Professor
Department of Mechanical Engineering
IIITDM Kurnool,A.P., India

3. Design Conceptualization and Philosophy, Original, Adaptive, Variant and Re-Design,
Evolution of Concept, Need for Systematic design Past methods of and design
Product life cycle, Innovation, Types of innovation
Needs and opportunities, Vision and Mission of a concept, Type of needs, Technology S -
curve, Need analysis, market analysis and competitive analysis, Kano Diagrams, SWOT
analysis
Conceptualization techniques – Idea generation – ideation, brainstorming, Trigger session,
Brain writing, Mind maps, SCAMPER, TRIZ, Biommicry, Shape mimicry, Familiarity Matrix
Concepts screening, Concept testing - exploratory tests, Assessment tests , Validation tests,
Comparison tests – Case studies
Organization of design concept and design methods, Engineering Design - Descriptive and
prescriptive model, Design decisions and development of design.
Group work and case studies
Course Contents:

4. Reference Books
1. Otto. K and Wood, K, “Product Design”, Pearson Education, 2001.
2. Pahl. G and Beitz. G, “Engineering Design”, Springer, 1996.
3. George E. Dieter, Linda C. Schmidt, “Engineering Design”, Mc-Graw-Hill Higher
Education, Fourth Edition.

5. Course Objectives
1. The purpose of this course is to introduce fundamental principles
of Engineering Design which is very important and relevant in the
context of todays engineering professionals.
The course will be generic to all engineering disciplines and will not
require specialized preparation or prerequisites in any of the
individual engineering disciplines.
Case studies from field situations and real products will be used to
illustrate these principles.

7. Course Evaluation
Type of Evaluation Weightage of Marks
Quiz-1 15 %
Quiz-2 15 %
Project, Seminar 10 %
Class tests, Assignments,
Attendance, etc.
10 %
End Exam
50 %

8. Source: https://eduadvisor.my/design/

9. • Design is the creation of a plan or convention for the
construction of an object or a system (Cambridge dictionary
of American English)
• Design is a specification of an object, manifested by an
agent, intended to accomplish goals, in a particular
environment, with the help of a set of primitive components,
targeted to satisfy a set of requirements, and subjected to
constraints (Ralph and Wand, 2009)
• Design is a roadmap or a strategic approach for someone to
achieve a unique expectation.
How to define “Design” ?

10. • Design is the craft of visualizing concrete solutions
that serve human needs and goals within certain
constrains (Goodwin, 2011)
• Design is a link between creativity and innovation (Cox
2005, pp.2)

11. • It can be observed that the concept of “Design” has so many
definitions, due to its wide range of applications in human life.
• The concept of design is not only confined to Engineering. It is
applicable for: artists, sculptors, music composer, many other
creative members of the society.
• Design establishes and defines solution to satisfy a recognized
need/problem of society.
• The problems could be new, or new solutions to problems
which have previously been solved in a different way.
• The ability to design is both a science and an art.
• The science can be learned through techniques and methods.
But, the art is best learned by doing design.
• It is for this reason that your design experience must involve
some realistic project experience.
Summary:

14. From How to make to What to make
• Traditionally engineering has been concerned with How to make
• The Challenge today is what to make
This is answered by innovative creation through Design
• Design is to meet the desires of contemporary society is
broadly called creative engineering design

15. Engineering Design Vs Industrial Design
Function : what the product is to do
Form: How the product is to do the function (Shape, Geometry, Appearance, Ergonomics)
The value of a product is directly dependent on whether it is accepted by the society
Goods/Products that nobody uses are meaningless

16. Creative Engineering Design
• Creativity is often considered as an evaluation of meeting the desires
of the society.
• It is the measure of Proximity to what is desirable

17. New Design Happens every time, as a routine

18. New Design Happens every time, as a routine

20. Design Starts from you
How many of you use the mobile phone
• For what purpose?
• Are you satisfied with the phone?
• Why?
How many of you use the WhatsApp?
• For what purpose?
• Is there any other way to meet this need?
• Was there any existing problem which facilitated this product

21. Birth and growth of product
Case Study – Mobile Phone
For this product, research its evolution, study the
changes in its function, form. etc.

22. Design Perspectives: Analytical Method Vs
Synthetic method
Analytical Design
• The purpose here is to solve a problem
• Analyze the existing problem and find a solutions
Synthetic method
• The objective here is to design something even when there is no
explicit problem
• Here is the shift from analysis to synthesis

23. The need for a product - Camera
• For centuries man has been trying to recreate the special moments of
life
• Initially painting was used as a medium to achieve this
• But this is time consuming and inaccurate, resulting in demand for a
new product/technology

24. First Design of a camera

25. First Design of a camera

26. First Ever Photograph

28. Emerging Needs
• The first cameras were very bulky weighing about 54 kg.
• They were also very expensive and were priced at about $50
• They were not affordable and could not be used by the general public

29. Emerging Needs

30. Electronic Flash Photography
• Harold Edgerton, an American researcher and inventor made
electronic flash photography a reality in 1931.
• He invented a stroboscopic light for use in both ultra high speed and
still photography.
• Harold rapatronic camera became capable of taking photograph with
exposure limits of 10 nanoseconds.

32. Introduction to flash memory
• World First digital camera with flash memory
• Flash memory is non-volatile computer memory that can be
electrically erased and reprogrammed.
FUJI DS-200F – 1993

33. In built LCD
Built in transmission capabilities
Decrease in size

34. Todays camera

35. Future
• The two eyes of humans give them the virtue of 3D image.
• In future cameras can also be expected to capture the 3D images

36. Case Study – Washing Machine

37. Case Study – Washing Machine
Function: Washing of clothes
• At first this was done by rubbing or pounding the clothes with rocks
and later developed into the corrugated wash board.
• For this product, research its evolution, study the changes in its
function, form. etc.