Design on engineering

1. Fundamentals of Engineering Design
CH.1
INTRODUCTION TO ENGINEERING DESIGN

2. Chapter Objectives
Understanding when engineers do design
Defining engineering design
Learning and doing engineering design
Managing engineering design projects

3. 1.1- Understanding engineering design
• This section aims to address these questions:
1. What does it mean for an engineer to design something?
2. When do engineers design things? Where? Why? For whom?

4. Design in Diverse
Industries:
• Engineer's role in different
sectors:
 Food processing
 Highway construction
 Automobile instrumentation
 Facilities for special needs
 Education for special needs.

5. Three Key Roles in any design process
1. Client: Who Initiates the design ( like food company or government agency)
2. User: Who Operates the designed product ( like consumers, drivers, students,
airplane passengers, public in some cases )
3. Designer: Who solves the client's problem to meet user needs ( like YOU:
EINGEERS )

6. Client
Designer User
Roles Interaction of any design process
 Client motivation as the starting point for
design
 Designer's initial task: clarify client
requirements to shape the design process.
 Interchangeable roles: the roles of client,
user, and designer may overlap. So, may not
always be three or even two different people.

7. Engineering design
environment
• Engineering designers work in many
different kinds of environments:
small and large companies, start-up
ventures, government, not-for-profit
organizations, and engineering
services firms.

8. Other considerations:
In big projects, many designers focus on small details, like parts of a bridge, an airplane
fuel tank, or a computer motherboard.
They don't worry much about what clients and users want for the whole project because
the big plan is already set.
The specific details come later; for example, thinking about how big the airplane is
happening before designing the fuel tank. So, this is called: conceptual design
Likewise, the overall performance of a computer motherboard is decided before picking
the specific chips.

9. 1.2- Basic vocabulary for engineering design
• This section aims to address these questions:
• What is engineering design ?
• How is design processed ?
• What is the measurement of engineered design ?

10. Defining Engineering Design
Engineering design: is a smart and organized process where engineers come
up with ideas, check them, and describe solutions for things such as devices or
systems.
The goal is : to meet what clients want and what users need while following
certain rules.
In short, it’s thoughtful process for creating plans that achieve specific goals
while sticking to certain rules.

11. Anything we deign:
Such as :
Devices,
systems, and
processes
It’s called : Artifacts
Artifacts are artificial, manmade objects, the “things” or devices that are being designed.
They are most often physical objects such as airplanes, wheelchairs, cell phones, and
cars.
Note: electronic versions of any produce such as : software is also called : artifacts

12. Example of artifacts
Sources of light
made by design
Natural manmade

13. Other definitions in design process
o design objective (n): a feature or behavior that we wish the design to have or show.
o design constraint (n): is like a rule that says what the design can or cannot do. It is
unacceptable if the design breaks these rules.
o functions (n): things a designed device or system is supposed to do.
o means (n): a way or a method to make a function happen.
o form (n): the shape and structure of something as distinguished from its material.

14. We have certain assumptions in the way we define engineering design. It's beneficial to clearly
state and understand these assumptions for better clarity:
• Design is a careful process that can be learned and taught.
• Even though designing involves creativity and innovation, people think while doing it.
• It's essential to have tools to help with that thinking, making decisions, and managing
design project.
• We use smart methods in design because it helps us figure out what the client wants, what
limits we have, and what the design should do. It's like our way of making sure we design
things the right way.

15. Measuring the Success of an Engineered Design
• At the beginning of the design process, we define a set of standards or metrics to check how well a proposed
design aligns with our objectives.
• A metric: is like a ruler we use in design. It helps us measure and judge how well a design meets its goals.
• Specifications: are like a scale we use to check how well a design does what it's supposed to do. They are
statements that tell us how the functions of a design should be carried out.
• How something looks (form) and what it does (function) are connected but can be different on their own.
• Note : the terms (specifications and requirements) are often taken as synonymous descriptors of a design’s
features and behaviors, as well as its functions.

16. Design and Systems
 Designed things don't exist in isolation;
they work in an environment and often
connect with other devices.
 Simon's definition emphasizes that
design is about describing how something
works in its inner and outer environments.
.
Example

17. Communication and Design
• Communication is important in design. Whether stating a design problem or creating
fabrication specs, we use various languages or representations throughout the process
to describe and discuss the device or system being designed.
Example: drawings and catalog
book

18. 1.3-Learning and doing engineering design
• Design is enjoyable and thrilling, but doing it well takes hard work
and serious thinking. This is why learning and practicing design can
be a bit tough!!

19. Engineering Design Problems are Challenging
• Design problems are tricky because there's no step-by-step math or fixed rules to solve
them. While math is essential in engineering, it doesn't work for problems without clear
limits. In the early design stages, there are no set formulas. This is what makes design
challenging but also fascinating—it doesn't follow a rigid set of rules.

20. Example for electrical and sustainable engineer

21. Example for civil engineer

22. Example for architectural engineer

23. • Teaching design is a bit like teaching someone to ride a bike or paint. It's
not just about explaining; there's a hands-on aspect. We often say, "Watch
what I do, and then give it a try yourself." It involves learning by doing,
like in an art studio or baking class

24. 1.4- Managing engineering design projects
• Good design is intentional, coming from thinking about what clients and users
need. Managing the design project is important, and being organized doesn't
mean losing creativity or technical skill.

25. To be successful, a design project must track scope, schedule, and
spending:
scope (n): deciding what a project must completed to be successful
Schedule (n): is like a plan that makes sure we have what we need, like time
and tools, to finish a project by the agreed-upon date.
Spending (n): is making sure we use only what we need to finish a design
project on time, without wasting anything.