This course is intended for students who are in the first or second years of a typical college or university program in mechanical engineering or a closely related field.

Throughout the following chapitres,  I have attempted to balance the treatments of problem-solving skills, design, engineering analysis, and pratical technology.

The presentation begins with a narrative description of mechanical engineers and what they do(Chapitre 1), and an outline of good problem-solving skills, particulary

with respect to numerical values and unit systems (Chapitre 2). Six elements of mechanical engineering are emphasized subsequently in Chapitre 3 (Machine Components and Tools),

Chapitre 4(Forces in Structures and Fluids), Chapitre 5(Materials and Stresses), Chapitre 6(Thermal and Energy Systems), Chapitre 7(Motion of Machinery), and Chapitre 8(Mechanical Design).

What should you be able to learn from this coures? First and foremost, you will discover who mechanical engineers are, what they do, and what technologies they create.

Section 1 details a "top-ten" list of the profession's achievements. Take a look at it now for a glimpse of mechanical engineering technologies, and recognize how the profession has improved your day-to-day life and society in general. Second, you will learn some of the order-of-magnitude approximations and back-of-the-envelope calculations that mechanical engineers can perform. To accomplish their jobs better and faster, mechanical engineers combine mathematics, science, computer-aided engineering tools, experience, and hands-on skills. Third, you will find that engineering is a pratical endevar with the objective of designing things that work, that are cost-effective to manufacture and sell, that are safe to use, and that are responsible in terms of their environmental impact.

You will set in place a solid foundation of problem-solving, design, and analysis skills, and those just might form the basis for your own future contributions to the mechanical engineering profession.

（1）戴勇. 机械工程导论. 北京：科学出版社，2014.6

（2）崔玉洁．机械工程导论．北京：清华大学出版社，2013.7

（3）宾鸿赞. 机械工程学科导论. 武汉：华中科技大学出版社，2011.10

（4）Jonathan Wickert. An Introduction toMechanical Engineering(影印版).西安：西安交通大学出版社，2003.