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ISTANBUL TECHNICAL UNIVERSITY

DEPARTMENT OF MECHANICAL ENGINEERING

 

MAK 322E THEORY OF MACHİNES

CRN  25625

Spring 2016-2017

  

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    In this course NINOVA e-learning portal is used for;

·         announcements,

·         homework collection,

·         distribution of the handouts,

·         announcement of grades 

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Instructor                        : Associate Prof. Dr. Erdinç Altuğ

Office                              : Department of Mechanical Engineering, Room: 442

Phone & E-mail :           (0212) 293 13 00 / 2838  &  altuger@itu.edu.tr

Lecture hours     :           Monday 10:30-12:20, Thursday 9:30 -12:20

Office hours                    : Tuesday 10:30-12:00, Thursday 13:30-15:30

CRN                                : 25625

 

Course Content:

Mechanisms, kinematic diagrams, kinematic chains and mobility. Some basic mechanisms. Kinematic analysis and synthesis of mechanisms. Review of some fundamental principles of mechanics. Static balance of machinery. Machine equation of motion and its implementation. Speed fluctuations and flywheel calculation. Force analysis in machinery. Shaking forces and mass balance. Balancing of rigid rotors. Mechanical Vibrations.

 

Textbook:

Design of machinery: an introduction to the synthesis and analysis of mechanisms and machines, R. L. Norton, McGraw-Hill, 2004.

 

Other References:

·         Theory of Mechanisms, J.E. Shigley ve J.J. UickerJr., McGraw-HillInc., 2nd ed., 1995.

·         Mechanisms, E. Söylemez, Middle East Technical University Publication # 64, 1993.

·         Mechanics of Machines, S. Doughty, John Wiley & Sons Inc., 3rd ed., 1988.

·         Makina Dinamiği, F. Pasin, İTÜ Makina Fakültesi, Birsen yayınları, 1994 (in Turkish).

·         Makina Teorisi - Mekanizmalar ve Makina Dinamiği, Ö. Turhan, Nobel Yayın dağıtım, 2012 (in Turkish).

·         Teori ve Problemlerle makine dinamiği, F. M. Botsalı, Nobel Yayın Dağıtım, 2010 (in Turkish).

·         An Introduction to Mechanical Vibrations, R.F. SteidelJohn Wiley & Sons Inc., 3rd ed., 1989.

·         Fundamentals of Mechanical Vibrations, S.G. Kelly, McGraw-Hill, Inc.,1993.

·         Titreşimler, K. Magnus, Çevirenler: F. Pasin ve M. Gürgöze, İTÜ Yayın no:127, 1978 (in Turkish).

 

Course Objectives:

·         To introduce the approaches and mathematical models used in kinematic and dynamic analysis of machinery.

·         To give basic knowledge on kinematic and dynamic design of machinery.

·         To give basic knowledge on mechanical vibrations.

 

Course Learning Outcomes:

 

Students who pass the course will be able to;

I.     Determine the kinematic chain and mobility, and perform the kinematic analysis of a given mechanism,

II.   Apply the fundamental principles of statics and dynamics to machinery,

III.Understand and avoid/suppress certain common dynamical problems a machine may undergo,

IV.             Understand the fundamentals of machine design for desired kinematic or dynamic performance.

V.  Understand the fundamentals of mechanical vibrations.

 

Prerequisities:

·        DNK203E (OR Similar) AND MAT201E (OR MAT201) AND MAT261E (OR MAT261)

COURSE PLAN:

Week

Topics

Course Material

1

Introduction to Theory of Machines class.

PART-1: MECHANISMS

Basics of mechanism technique, kinematic couples, degrees of freedom, kinematic chains, example mechanisms

NORTON Ch.1&2, Lecture Notes, SHIGLEY Ch. 1, TURHAN Ch.1& 2

2

Kinematic analysis of mechanisms (Position analysis)

NORTON Ch.4&6, Lecture Notes, SHIGLEY Ch.2, TURHAN Ch.3

3

Kinematic analysis of mechanisms (Velocity and Acceleration analysis)

NORTON Ch.7, Lecture Notes, SHIGLEY Ch.3& 4

4

Numerical techniques of Kinematic analysis of mechanisms

Homework-1

NORTON Ch.7, Lecture Notes, SHIGLEY Ch.3& 4

5

PART-2: MACHINE DYNAMICS

Introduction to machine dynamics. Static force analysis. Dynamic Force analysis.

NORTON Ch. 10, Lecture Notes, SHIGLEY Ch.12

6

Midterm Exam-1 (13 March 2017, Monday, at 10:30)       

Virtual work principle, D’Alembert Principle.

NORTON Ch.11, Lecture Notes, SHIGLEY Ch.13

7

Equations of motions of Machines. Lagrange’s equation of motion.

Lecture Notes, TURHAN Ch.6

8

Reducing speed fluctuations with flywheels

Lecture Notes, TURHAN Ch.10

9

Balance of rotating machinery (static and dynamic balancing)

Homework-2

Lecture Notes, NORTON Ch.12, SHIGLEY Ch.15, TURHAN Ch.12

10

PART-3: MECHANICAL VIBRATIONS

Fundamentals of vibrations

Lecture Notes, KELLY Chapters 1&2,  MAGNUS Ch.1

11

Midterm Exam-2 (24 April 2017, Monday, at 10:30)

Free Vibrations

Lecture Notes, KELLY Ch.3, MAGNUS Ch.2

12

Undamped and Damped Free Vibrations                               

Lecture Notes, KELLY Ch.3, MAGNUS Ch.3

13

Forced Vibrations 

Homework-3

Lecture Notes, KELLY Ch.4, MAGNUS Ch.5

14

Vibration Isolation (Isolation of Motion, Force Isolation)

Lecture Notes, KELLY Ch.11

 

Assessment Criteria:

 

Quantity

Total Percentage %

Midterm Exams

2

40

Homeworks/Quizzes

6-10

15

Final Exam

1

45

 

Notes:

·         Throughout the semester NİNOVA education portal will be used.

·         In order to take the final exam you should attend at least 70% of the lectures, and also your midterm grade average should be at least 30. (This is a strict rule. No exceptions!)

·         Attendance will be checked every lecture. Student arrive late 15 minutes or more will not be allowed to sign the list. Students leave early will be counted as “absent” from lecture.

·         Independent of the class grade average, students who obtain below 35 will receive only FF, for those who obtained below 80 can not receive AA grade.

·         In this course, we encourage students to work together, even on homeworks and projects. But it is expected that each student should write his/her homeworks himself/herself. It is undesirable to have similar or identical homeworks. Similar homeworks that are indication of copying will not be tolerated and these homeworks will not be graded.

 

 

[Last update was on January 15, 2015]