Introduction to Engineering Design

Engineering Fundamentals: An Introduction to Engineering Moaveni

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Engineering Fundamentals: An Introduction to Engineering Moaveni

Chapter 3

Introduction to

Engineering

Design

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Engineering Fundamentals: An Introduction to Engineering Moaveni

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Engineering Fundamentals: An Introduction to Engineering Moaveni

Learning Objectives

1. Engineering Design Process

Explain the basic steps that engineers follow to design something

and to arrive at a solution to a problem

2. Additional Design Considerations

Describe what is meant by sustainability and its role in design;

also explain the roles of engineering economics and material in

engineering design

3. Teamwork

Explain what is meant by a design team and describe the

common traits of good teams; also explain how good teams

manage conflicts

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Engineering Fundamentals: An Introduction to Engineering Moaveni

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Engineering Fundamentals: An Introduction to Engineering Moaveni

Learning Objectives

4. Project Scheduling and the Task Chart

Describe the process that engineering managers use to ensure

that a project is completed on time and within the allocated

budget

5. Engineering Standards and Codes

Describe why we need standards and codes and give examples of

standards and codes organizations in the United States and

abroad

6. Water and Air Standards in the United States

Describe the drinking water, indoor and outdoor air sources of

pollutants, and the water and air quality standards in the United

States

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Engineering Design Process

Basic Steps

1. Recognizing the need for a product or a service

2. Defining and understanding the need

3. Research and preparation

4. Conceptualization

5. Synthesis

6. Evaluation

7. Optimization

8. Presentation

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Step 1: Recognizing the need for

a product or a service

The need for a product or service could come from

You

Company

Client(s)

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Engineering Fundamentals: An Introduction to Engineering Moaveni

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3-6

Step 2: Problem definition and

understanding

The most important step in any design process

Before you move on to the next step,

Make sure you understand the problem

Make sure that the problem is well defined

Good problem solvers are those who first fully

understand what the problem is

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Step 3: Research and preparation

Collect useful information as much as you can

Search to determine if a product already

exists that closely meets the need

Consider if you can adopt or modify existing

components

Review and organize the information collected

in a suitable manner

Engineering Fundamentals: An Introduction to Engineering Moaveni

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Step 4: Conceptualization

Generate ideas or concepts that could offer

reasonable solutions to your problem

Identify the components of the system

Analyze the merit of the developed concepts

Evaluate alternatives

Create a milestone chart

Engineering Fundamentals: An Introduction to Engineering Moaveni

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Step 5: Synthesis

At this point you begin to consider details

Perform calculations

Run computer models

Narrow down the type of materials to be used

Size the components of the system

Answer questions about how the product is

going to be fabricated

Consult pertinent codes and standards for

compliance

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Step 6: Evaluation

Analyze the problem in more detail

Identify critical design parameters and consider

their influence in your final design

Make sure that all calculations are performed

correctly

For uncertainties, perform experimental

investigation

Identify the best solution from alternatives

Engineering Fundamentals: An Introduction to Engineering Moaveni

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Evaluating Alternatives

When a design is narrowed down to a few

workable concepts, evaluation of these

concepts is needed before detail design is

pursued

Each design would have its own evaluation

criteria

Engineering Fundamentals: An Introduction to Engineering Moaveni

Step 7: Optimization – minimization

or maximization

Optimization is based on some particular

criterion such as cost, strength, size, weight,

reliability, noise, or performance