INTRODUCTION TO ENGINEERING DESIGN: Book 10, 2nd Ed.
ENGINEERING SKILLS AND OVER SAND VEHICLE (OSV) MISSIONS
Jim Dally and The Keystone Faculty
University of Maryland, College Park
This book is the second eBook edition of the tenth textbook in this series dealing with Introduction to Engineering Design. Jim Dally, working with College House Enterprises, LLC and faculty members in the Keystone Program within the Clark School of Engineering, has prepared nine previous books in this series—a new one almost every 18 months. These books are written for the first-year engineering students of the University of Maryland at College Park. Several other Colleges of Engineering have adopted one or more of the books in this series to introduce design and engineering skills for their first or second year students. The design, build and testing of a hovercraft model, described in Book 9, was such an interesting and challenging project that it was used for twelve semesters with approximately 8,000 students at the University of Maryland. The project is also assigned for the first year Introduction to Engineering Design at the University of Nevada @ Reno, where it is in its fifth year and at the University of California @ Irvine, where it is in its third year.
The new project, described in this text, is an autonomous Over Sand Vehicle (OSV), which should be an easier model to build because of the extensive amount of suitable hardware that is commercially available online for modest cost. The more significant challenge will be to adapt the OSV to effectively respond to coordinate information provided by the instructors at nearly real time, navigating over a sand filled arena, and to perform the assigned task after reaching the target.
The textbook is used to support the students during a semester-long project. Some of the material may be covered in lecture, recitation or in a computer laboratory or a model shop. Additional material is covered with reading assignments. In other instances, the students use the text as a reference document for independent study. Exercises, provided at the end of each chapter, may be used for assignments when the demands of the project on the students’ time are not excessive.
The book contains 16 chapters to present the many topics that first year engineering students should understand as they proceed through a significant portion of the product realization process. Product and system development processes is introduced in early in the text. An Introduction to the course and to the textbook is provided in Chapter 1 to alert the students to the demands of the course and to introduce them to the problems frequently encountered by other students in designing, building and testing an autonomous model of an OSV. Information on team skills and the importance of the product development process is covered in Chapters 2 and 3. Several OSV missions are also presented in Chapter 3 together with a description of the design concepts involved in its development. By assigning a demanding project, a holistic approach is employed in the student’s first engineering experience that motivates them. Design of an OSV enables the instructor an opportunity to integrate a spectrum of knowledge about many topics. The student’s hands-on participation in a design, building and testing an autonomous vehicle significantly enhances their learning process.
Chapter 4 describes basic electric circuits and batteries to provide technical background helpful for the design and control of the OSV. Sensors that may be used to complete the task assigned as part of the mission are described in detail in Chapter 5. Concepts of statics and dynamics are introduced in Chapter 6 to enable the students to understand the forces and moments and their effect on controlling the motion of their autonomous vehicle. Finally, an introduction to programming the Arduino microprocessor in a version of C is included in Chapter 7.
Two chapters on engineering graphics using computer programs are included. A discussion of preparing engineering drawings is described in Chapter 8. Several CAD/CAE programs are available on the college’s computers and instructional videos are available to assist you in mastering the software. The use of tables and graphs in communicating engineering information using Microsoft Excel is presented in Chapter 9.
The very important topic of communications is covered in two chapters. Chapter 10, on technical reports, describes many aspects of technical writing and library research. The most important lesson here is that a technical report is different than a term paper for the History or English Departments. An effective professional report is written for a predefined audience with specific objectives. The technical writing process is described, and many suggestions to facilitate composing, revision, editing and proofreading are given. Chapter 11, on design briefings, shows the distinction among speeches, presentations and group discussions. Emphasis is placed on the technical presentation and the importance of preparing excellent visual aids. PowerPoint slides are usually employed as visual aids in a design briefing.
An introduction to the engineering profession, described in Chapter 12, covers engineering disciplines, on-the-job activities, salary statistics and registration information for your PE license. A useful student survival guide is also included in Chapter 13. We encourage you to read it as it contains information for managing time that will be useful throughout your life.
Three chapters dealing with engineering and society are included. A historical perspective on the role engineering played in developing civilization and on improving the lives of the masses is presented in Chapter 14. In this chapter, we move from the past into the present and indicate the current relationship between business, consumers and society. The twenty greatest engineering achievements of the 20th century are briefly described. Chapter 15 discusses the balance between safety and performance. Methods to evaluate and recognize risky environments are discussed. The chapter includes a listing of hazards, which is important in identifying the many different ways users of a product can be injured. Chapter 16 on ethics, character and engineering includes a large number of topics so the instructor can select from among them. A description of the Challenger and Columbia accidents is also given, because both of these fatal crashes provide excellent case histories covering safety related conflicts between management and engineers. A new reference to a video produced by the New York Times has been added. We strongly recommend viewing it.
Introduction to Engineering Design
Book 10, 2nd Ed.
Engineering Skills and Over Sand Vehicle (OSV) Missions
eBook on CD
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