Course Name

 

Code

Regular

Semester

 

Credit

Lecture

4

Recitation

1

Machine Design I

MAK 341

5

4

Laboratory

   ( Hour / Week )

-

Language

Turkish

Type

ME Program Core

Coordinator

Prof. Dr. Aybars ÇAKIR

Course Description

 

 

Mechanical engineering design activity and importance of machine elements knowledge in this activity. Fundamentals of design and applications of machine elements. Welded, soldered, adhesive bonded, riveted joints. Shaft-hub connections. Bolted joints and power screw mechanisms. Pins, knuckles, springs, shafts and axles, coupling and clutches, lubricants and lubrication theory, sliding and rolling bearings.

Objectives

 

 

 

1. To introduce the analysis phase and machine elements in mechanical design.

2. To develop mathematical models for functional analysis and stress calculation of machine elements by using engineering sciences. By using the available experimental models determine the input and output values of the machine system elements.

3. To use the standards and design criteria.

4. To improve the goal recognition, creativity and intuition and also to enable the students to gain experience in machine design.

5. To provide the necessary knowledge and capability for task spesification, consept formation and synthesis phases of the machine design. To develop the further stages of the machine design; manufacturing of prototypes, testing and marketing.

Outcomes

 

 

 

 

 

At the end of this course, students should be able to:

1.      Recognize formation and calculation welded, soldered, adhesive bonded and riveted joints.

2.      Recognize machine elements which are used in form and force connected shaft-to-hub connections and their standards. Recognize the formation and calculation methods of the keys, splined and profiled shafts, pin joints, press and fit joints and friction-joints with intermediate parts.

3.      Recognize the design and standards of the pins and knuckles.

4.      Recognize bolted joints, power screw mechanisms and screw thread forms and their standards, screw mechanics, calculation of stresses in bolted and screw joints and  their determination of dimensions, and also known the design of preloaded bolted joints.

5.      Recognize the elastic behaviour of materials, application areas of springs and their properties, and also know the designs of the flat, leaf, helical and special metal and rubber springs.

6.      Recognize the types and standards of axles and shafts and their stress, deformation and vibration calculations.

7.    Recognize the types, characteristics, application limits, dynamic behaviours and heat balance of the couplings and clutches.

8.      Recognize lubrication; friction and wear, lubricants and their characteristics, viscosity, the effects of temperature and pressure, additives.

9.      Recognize the lubrication theory, form of load-carrying films and Reynold’s differential equation.

10.  Recognize the sliding bearings; define the types and load carrying ability and calculation of bearing temperature of the external pressed thrust and journal bearings and also hydrodynamic thrust and journal bearings.

11.  Define types and standards of rolling bearings and determination of their bearing dimensions under static and dynamic loads. Recognize Stribeck and Palmgren-Eschmann equations. Basic load rating, basic life. Bearing selection under variable loads and variable number of revolutions.  Statistical characteristics of bearing lives.

12.  Select machine elements by means of tutorials and homework. Determine the dimensions of the machine elements by using strength of materials calculations. Understand application of standards and design criteria of the machine elements.

Textbook

Course notes.

Other References

 

 

1.     Joseph Edward Shigley, Mechanical Engineering Design, McGraw-Hill International Editions, First Metric Edition, 1986.

2.     Tochtermann/Bodenstein, Konstruktionselemente des Machinenbaues 1,2, Springer-Verlag

3.     Robert L. Norton, Machine Design: An Integrated Approach, Prentice Hall 2000, ISBN 0-13-017706-7

4.     Juvinall, R.J. and Marshek, K.M., Fundamentals of Machine Component Design, 3rd Edition, John Wiley & Sons, 2000.

5.     Deutschman, A.D., Wilson,C.E and Michels, W.J., Machine Design, Prentice Hall, 1996.

6.     Cameron, A. The Principles of Lubrication, Longmans, 1966

7.     Moore, D.F., Principles and Applications of Tribology, Pergamon Press, 1975.

Prerequisite Courses

Technical Drawing RES105, Strenght of Materials MUK201, Materials Science MAL201.

Prerequisites by Topic

Tolerances and fits, characteristics  of sections, stress analysis, equivalente and fatigue strenghts, fracture hypotesis, Hertzian stresses, mechanical properties of materials, vibration analysis, equilibrium equations in fluid mechanics, heat transfer. 

Homeworks & Projects

 Homework related to tutorials.

Laboratory Work

-

Computer Use

It will be used in preparation homework assignments.

Other Activities

Four quizzes will be given during the course.

Assessment Criteria

 
Quantity

Percentage %

Midterm Exams

2

30

Quizzes

4

15

Homeworks

6

15

Projects

-

-

Term Paper

-

-

Laboratory Work

-

-

Other

-

-

Final Exam

1

40

Course Category

 by Content,

       %

Mathematics and Basic Sciences

 

Engineering Science

30

Engineering Design

70
Social Sciences

 

 

COURSE PLAN

 

Week

Topics

1

Design activity and importance of knowledge of machine elements in this activity. Fundamentals of strenght  of materials analysis of machine elements. Loads and stresses, equivalente stresses, fracture theories, fatigue strenght, Hertzian stresses.

2

Unseparable joints; welded joints.

3

Unseparable joints; soldered, adhesive bonded and riveted joints.

4

Form connected shaft-hub connections.

5

Force connected shaft-hub connections.

6

Force connected shaft-hub connections, pins and knuckles.

7

Bolted joints; the mechanics of screws and their stress calculations.

8

Bolted joints; preloaded bolted joints.

9

Springs.

10

Axles and shafts, couplings.

11

Clutches.

12

Lubricants and lubrication theory.

13

Sliding bearings.

14

Rolling bearings.

 

 

 

 

RELATIONSHIP BETWEEN THE COURSE AND M.E. CURRICULUM

 

M.E. Program Outcomes

 

1

 

2

 

3

1

An ability to apply knowledge of mathematics, science, and engineering on mechanical engineering problems

 

 

X

2

An ability to design and conduct experiments, as well as to analyze and interpret data and use modern tools and equipment.

 

X

 

3

An ability to select, develop and/or design a system, component, or process to meet desired performance, manufacturing capabilities and economic requirements.

 

 

X

4

An ability to function on and/or develop leadership in multi-disciplinary teams.

 

X

 

5

An ability to identify, formulate, and solve mechanical engineering problems.

 

 

X

6

An understanding of professional and ethical responsibility

 

X

 

7

An ability for effective written and oral communication in Turkish and English.

 

X

 

8

An ability to understand and comment on the impact of engineering solutions in a national and global context.

 

 

X

9

A recognition of the need for, and an ability to engage in life-long learning

 

 

X

10

A knowledge of contemporary issues in mechanical engineering

 

 

X

11

An ability to use the techniques, skills, and modern engineering tools , such as computer programs, necessary for engineering design and analysis and use modern information systems

 

X

 

12

A detailed knowledge of and experience on a specific application field of mechanical engineering

X

 

 

 

Contribution of the course:     1: None,   2.:Partially,   3: Completely.

 

 

Prepared by:

Prof. Dr. Aybars ÇAKIR

Date:

25/04/2002