Class Time: W 6:10 – 8:25, 225 Akerman Hall

Instructor: Daniel Khalitov, 09 Akerman Hall, 612-625-3559, khalitov@aem.umn.edu

Office Hours: M 6:00 – 8:00

Study Hall: MW 2:30 – 3:20 Th 1:25 – 2:15 F 12:20 – 1:10, 227 Akerman Hall

Grading Heather Banbury, Akerman Hall 204, 612-625-1047, banbury@aem.umn.edu
Assistants: Jay Kucera, Akerman Hall 205, 612-624-3501, kuce0020@umn.edu

Text: Beer and Johnston, Vector Mechanics for Engineers: Statics, 6^th ed., McGraw-Hill (1996)
or Beer and Johnston, Vector Mechanics for Engineers: Statics and Dynamics

Course Objectives

• to learn how to use vectors to describe forces, moments, and their balance;
• to become proficient in the analysis of engineering problems concerning bodies at equilibrium.

If you want to learn – attend lectures, read the text, and ask relevant questions. Contact your instructor (email, phone, office hours) or TA’s in the Study Hall if you have difficulties with understanding the course material or with solving homework problems. Also feel free to ask your instructor if you simply want to learn more. Asking relevant questions makes your learning easier, faster, and better.

If you want to become a problem-solver – solve as many problems as possible in your homework, quizzes and exams. Typically, a solution to each problem in this course includes four parts

1. Given/Find/Assumptions. In this part of the solution, you should translate the problem statement from English into the language of mathematics, indicate what parameters are known, what is to be found and any assumptions or simplifications you might use.
2. Free-Body Diagram (FBD) where any supports, connections or cables attached to the body are replaced with equivalent forces and moments.
3. Algebraic Part, in which you operate with vectors and symbols and try to simplify your solution in letters as much as possible before plugging in any numbers.
4. Numerical Part, in which you perform your computations and finally get the correct answer.

Tests and Homework

There will be eleven homework assignments, nine quizzes (excluding the diagnostic quiz), two mid-term exams, and a final exam (see syllabus). The quizzes and exams are closed-book, closed-note, apart from an 8.5” x 11” sheet of paper with your own notes. Each quiz will consist of one problem and will take approximately 20 minutes. The midterm exams are each 60 minutes long. The final exam is tentatively scheduled for Wednesday, December 19, 2001 at 6:10 PM in 225 Akerman Hall and is three hours long. Any change in the room assignment will be announced ahead of time.

Homework problem sets will include six problems each, and it is essential that you do them all. You may cooperate with your classmates to work on the problem sets but you may not copy the work of another student and hand it in as your own. Out of each problem set, two problems will be selected at random and graded on a 4-point scale, one point for each part of the solution as shown above. Another two problems, also randomly selected, will receive one point each if you demonstrate that you have made an honest attempt to solve them. The remaining two ‘supplementary’ problems will give you an opportunity to explain their solutions to the other students in class (see below). Thus, you should be able to fully understand and clearly explain the solutions to each of your six homework problems. Homework is not intended as a test; you may receive a minimum of 4 and a maximum of 10 points for a completely solved homework set. However, late homework will not be accepted.

Diagnostic Quiz and Supplementary Problems

You may get an extra credit for these two additional assignments. The diagnostic quiz is given mainly to inform the instructor about the level of students entering the course and to make final changes to the syllabus. However, you may also receive an extra credit for correctly solved problems in the diagnostic quiz. In addition to this, you will be given one chance (per semester) to present a supplementary homework problem in front of the class on the homework due date. Each student who presented one fully and correctly solved supplementary problem in class will receive bonus points for it as for a quiz. Also, solving problems in front of the audience will sharpen your presentation skills.

Grade

Your grade depends on the following components:

Homework 15% Quizzes 25% Midterms 30% Final Exam 30%

Tentatively, your letter grade will be determined on the following scale. This scale may change, depending on the overall performance of the class.

above 95% A 85-95% B 70-85% C below 70% F

Cheating

Cheating is completely unacceptable. The basic statement on this issue appears in the Undergraduate Catalog (p. 262) and in the back of the IT Student Guide:

The Institute of Technology expects the highest standards of honesty and integrity in the academic performance of its students. Any act of scholastic dishonesty is regarded as a serious offense, which may result in expulsion. The Institute of Technology defines scholastic dishonesty as submission of false records of academic achievement; cheating on assignments or examinations; plagiarizing; altering, forging, or misusing an academic record; taking, acquiring, or using test materials without faculty permission; acting alone or in cooperation with another to obtain dishonestly grades, honors, awards, or professional endorsement. Aiding and abetting an act of scholastic dishonesty is also considered a serious offense.

Tentative Syllabus

The syllabus will be finalized by the second week of classes based on the outcome of the diagnostic quiz. Later, if changes are required they will be announced in class.

Date	Lecture Topic	Text	Quiz/EXAM	Homework Due
5-Sep-01	vectors in plane	2.2-2.8	diagnostic quiz
12-Sep-01	vectors in space	2.9-3.5
19-Sep-01	moments and couples	3.6-3.16	equilibrium of a particle	equilibrium of a particle
26-Sep-01	reduction of systems	4.1-4.5	moments and couples	moments and couples
3-Oct-01	equilibrium in two dimensions	4.6-4.7	reduction of systems	reduction of systems
10-Oct-01	equilibrium in three dimensions	4.8-4.9	equilibrium in 2D	equilibrium in 2D
17-Oct-01	centroids of wires and plates	5.1-5.6	EXAM 'RIGID BODIES'	equilibrium in 3D
24-Oct-01	centroids, distributed loads	5.7-5.12
31-Oct-01	trusses	6.1-6.8	distributed loads	distributed loads
7-Nov-01	frames and machines	6.9-6.12	trusses	trusses
14-Nov-01	forces in beams	7.1-7.2	EXAM 'STRUCTURES'	frames and machines
21-Nov-01	forces in beams, contd	7.3-7.5
28-Nov-01	friction	8.1-8.4	beams	beams
5-Dec-01	area moments of inertia	9.1-9.7	friction	friction
12-Dec-01	review		moments of inertia	moments of inertia
19-Dec-01			FINAL EXAM

Computers, Calculators, Email and Web

Announcements will also be sent to your X.500 student email address (zzzz9999@umn.edu)
Lecture notes, assignments, solutions and any updates to the course will be posted on the website
http://www.aem.umn.edu/people/students/khalitov/teaching.html You may use any calculators to solve homework problems and tests. You may also use software at the end of the book.