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Engineering
Design
Introduction to Mechanical Engineering
The University of Texas-Pan American
College of Science and Engineering
Objectives
 Define Engineering Design.
 Define and explain the Engineering
Design Process.

Assignment: Prepare a Gantt Chart for your Final Design Project
(Project Timeline).
[ See Example Report posted in my website ]
What is Engineering Design?
 To create, fashion, execute, or construct
according to plan.
 It defines a natural process as “a natural
phenomenon marked by gradual changes
that lead toward a particular result: a series
of actions or operations conducing to an
end…
What is Engineering Design?
 The ABET Definition:
It 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.
What is Engineering Design?
 The ABET Definition (cont):
Among the fundamental elements of the
design process are the establishment of
objectives and criteria, synthesis, 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 impact.
Ten-Stage Design
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Identify the problem/product innovation.
Define the working criteria/goals.
Research and gather data.
Brainstorm/generate creative ideas.
Analyze potential solutions.
Develop and test models.
Make the decision.
Communicate and specify.
Implement and commercialize.
Perform post-implementation review.
Stage 1: Identify the Problem
 Establish the actual problem clearly, and
identify sources of information to help
understand the scope and nature of the
problem.
 Statement of the problem.
Stage 2: Define the Working
Criteria and Goals










How much will it cost?
Will it be difficult to produce?
What will be the size, weight, and strength?
What will it look like?
Will it be easy to use?
Are there any legal concerns?
Will it be reliable and durable?
Can it be recycled?
Is this what the costumer really wants?
Will our customers want to purchase it?
Stage 3: Research and Gather Data
 What information has been published
about the problem?
 Is there a solution to the problem that may
already be available?
 What is the ratio of time spent compared to
overall costs?
Stage 3: Research and Gather Data
 Libraries.
 Professional associations.
 Trade journals and publications.
 Newspapers and magazines.
 Market assessment surveys.
 Government publications.
 Patent searches.
 Competitor’s product.
Stage 4: Brainstorm/Generate
Creative Ideas
 Try to include engineers, scientists,
technicians, shop workers, production
staff, finance personnel, managers,
computer specialists, and a few clients.
Stage 5: Analyze Potential
Solutions
 Common sense.
 Economic analysis.
 Analysis using basic engineering
principles.
 Estimation.
 Analysis of compatibility.
 Computer analysis techniques.
Stage 6: Develop and Test Models
 Mathematical models.
 Computer models.
 Scale models.
 Diagrams or graphs.
Stage 6: Develop and Test Models
 Durability.
 Ease of assembly.
 Reliability.
 Strength.
 Environmental.
 Quality consistency.
 Safety.
 Consistency of testing.
Stage 7: Make the Decision
 Establish a means to compare and evaluate
results from the testing stage to determine
which, if any, of the possible solutions will
be implemented.
Stage 8: Communicate and Specify
 Before a part, product, or structure can be
manufactured, there must be complete and
thorough communication, reporting, and
specification for all aspects of the item.
Stage 9: Implement and
Commercialize
 Management and key supervisory
personnel.
 Technical representatives
– Human resources, financial, purchasing,
marketing, and sales personnel.
 Attorney and legal support staff.
Stage 10: Perform PostImplementation Review and
Assessment
 Review data on production efficiency,
quality control reports, sales, revenues,
costs, expenditures, and profits.
 Detail product’s strengths and
weaknesses.
 Suggest improvements.
Open Forum
Quiz - Order the steps…










Perform post-implementation review
Define the working criteria/goals
Brainstorm/generate creative ideas
Develop and test models
Make the decision
Communicate and specify
Analyze potential solutions
Identify the problem/product innovation
Implement and commercialize
Research and gather data