what engineers do

Chapter 1Chapter 1What Engineers DoWhat Engineers Do

In In This Course You Will StudyThis Course You Will StudyThe role of engineers and engineering technologistsForce, motion, energy, fuels, and enginesLogic and computing systemsThe elements of engineering designEngineering economicsAnd much, much more!

Exploring Engineering

What Is What Is EngineeringEngineering? ?

Aerospace Ceramic Electrical Mechanical Petroleum

Agricultural Chemical Environmental Metallurgical Sanitary

Architectural Civil Geological Mining Systems

Automotive Computer Manufacturing Nuclear Textile

Biomedical Ecological Marine Ocean Transportation

Engineers can be classified according to the kind of work they do—administration, construction, consulting, design, development, teaching, planning, production, research, sales, service, and test engineers. Because engineering deals with the world around us, the number of engineering disciplines is very large. The table below lists some of the many engineering fields.


What Is What Is Engineering TechnologyEngineering Technology??Engineering technology is the profession in which a knowledge of mathematics and natural sciences gained by higher education, experience, and practice is devoted primarily to the implementation and extension of existing technology for the benefit of humanity.Engineering technologists work closely with engineers in coordinating people, material, and machinery to achieve the specific goals of a particular project. The engineering technologist is often responsible for design and development.


What Makes A “GOOD” 21What Makes A “GOOD” 21stst

Century Engineer?Century Engineer?The 21st century will be characterized by the convergence of many technologies and engineering systems. The products of today and tomorrow will be “smarter” in which computers, sensors, controls, modern alloys, and plastics are as important as continuing expertise in the traditional engineering disciplines.


Personal EthicsPersonal EthicsPersonal ethics are the standards of human behavior that individuals of different cultures have constructed to make moral judgments about personal or group situations. Naturally, they vary over time and from culture to culture, resulting in conflict when what is acceptable in one culture is not in another. For example, the notion of privacy in U.S. culture is very strong, and a desk is considered an extension of that privacy, whereas in another culture, such as Japan, office space is open and one’s desk would be considered public domain.


Professional EthicsProfessional EthicsHaving a code of ethics enables an engineer to resist the pressure to produce substandard work by saying, “As a professional, I cannot ethically put business concerns ahead of professional ethics.” It also enables the engineer to similarly resist pressure to allow concerns such as personal desires, greed, ideology, religion, or politics to override professional ethics.As members of this profession, engineers are expected to exhibit the highest standards of honesty and integrity. Engineers perform under a standard of professional behavior that requires adherence to the highest principles of ethical conduct.


National Society of Professional National Society of Professional Engineers Code of EthicsEngineers Code of Ethics

Fundamental canonsEngineers, in the fulfillment of their professional duties, shall • Hold paramount the safety, health, and welfare of the public.• Perform services only in areas of their competence.• Issue public statements only in an objective and truthful manner.• Act for each employer or client as faithful agents or trustees.• Avoid deceptive acts.• Conduct themselves honorably, responsibly, ethically, and

lawfully so as to enhance the honor, reputation, and usefulness of the profession.


Engineering Ethics Decision MatrixEngineering Ethics Decision MatrixOptions →

NSPE Canons Go along with the

decisionAppeal to higher

managementQuit your

jobWrite your state representative

Call a newspaper reporter

Hold paramount the safety, health and welfare of the

publicPerform services only in the area of your competence

Issue public statements only in an objective and truthful manner

Act for each employer or client as faithful agents

or trustees Avoid deceptive

acts Conduct

themselves honorably


Keys Keys to to YOURYOUR SuccessSuccessStudy skillsTime managementWriting skillsMath skills


Where to Where to Find InformationFind InformationYour InstructorsYour fellow team membersOther studentsCampus resources


Engineering Design Engineering Design Is:Is:Synthesis – putting things togetherAnalysis – taking things apart


Example Example -- Buying Buying a Cara CarA car salesperson might say:

a) “This car was driven by an older person who never exceeded the speed limit.”

andb) “It has great power, excellent fuel efficiency, and

low pollution.”

What would an engineer say to part a)?


Design Design CriteriaCriteriaFor part a) an engineer might say:

“It was driven by a human about 1.7 meters high and 2 billion seconds old who never drove it faster than about 70 meters per second.”

Variable Unit NumberHeight meters 1.7Age seconds 2x109

Speed m/s 70


Design Design CriteriaCriteriaIn part b) when the salesperson says

“It has great power, excellent fuel efficiency, and low pollution.”

An engineer might say:“(You fill in this part and define the variables, units, and numerical values)”

Variable Unit Number


National Academy of Engineering National Academy of Engineering Top 20 Engineering Achievements of the 20th CenturyTop 20 Engineering Achievements of the 20th Century

1) Electrification 2) Automobile3) Airplane 4) Water Supply and Distribution5) Electronics 6) Radio and Television7) Agricultural Mechanization 8) Computers9) Telephone 10)Air Conditioning and

Refrigeration

11)Highways12)Spacecraft 13)Internet 14)Imaging 15)Household Appliances16)Health Technologies 17)Petroleum and Petrochemical

Technologies18)Laser and Fiber Optics 19)Nuclear Technologies 20)High-performance Materials


The National Academy of Engineering List of the Challenges The National Academy of Engineering List of the Challenges for Engineering in the 21st Century.for Engineering in the 21st Century.

1) Make solar energy economical 2) Provide energy from fusion 3) Develop carbon sequestration

methods 4) Manage the nitrogen cycle 5) Provide access to clean water 6) Restore and improve urban

infrastructure 7) Advance health informatics

8) Engineer better medicines 9) Reverse-engineer the brain 10) Prevent nuclear terror 11) Secure cyberspace 12) Enhance virtual reality 13) Advance personalized learning 14) Engineer the tools of scientific

discovery

http://www.engineeringchallenges.org/


Do you agree with this list of

challenges?http://www.engineeringchallenges.org/


what engineers do

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