Course code: 242606  Subject title: DESIGN AND TESTING OF MACHINES  
Credits: 6  Type of subject: Optative  Year: 3  Period: 2º S  
Department: Mechanical, Energy and Materials Engineering  
Lecturers  
GAINZA GONZALEZ, GORKA  AGINAGA GARCIA, JOKIN (Resp) 
This course introduces the student in an advanced manner in the methods for design of machine elements subjected to static and dynamic loading. Special attention will be taken to the factors that affect fatigue life for dynamic loads. Procedures to determine cyclic loads from time dependent loads will also be included. The second part of the course will be dedicated to the calculation of bearings, gears and bolts.
Keywords: Stress Analysis. Material caracterization; Static Failures, Dynamic Failures; Failure Theories. Finite Element Design. Machine elements; Gears; Design of Unions. Bearings; Lubrication
CB2  The students should be able to apply their knowledge to their work or vocation in a professional manner having the competences typically demonstrated through formulating and sustaining arguments and solving problems within their field of study.
CB3  The students should have the ability to gather and interpret relevant data (usually within their field of study) to state judgments that include reflection on relevant social, scientific or ethical.
CG1  Ability to write, sign and develop projects in the field of mechanical engineering aimed at the construction, alteration, repair, maintenance, demolition, manufacture, assembly, installation or operation of: structures, mechanical equipment, energy facilities , electrical and electronic installations, installations and industrial plants and manufacturing processes and automation.
CG2  Ability to manage the activities under the engineering projects described in the previous section.
CG3  Knowledge in basic materials and technology that will enable them to learn new methods and theories, and equip them with versatility to adapt to new situations.
CG4  Ability to solve problems with initiative, decision making, creativity, critical thinking and to communicate and transmit knowledge, skills and abilities in the field of Industrial Engineering.
CM1: Acquire the knowledge and skills for the calculation, design and testing of machines.
R1 Propound and perform complex projects on machines and mechanical elements.
R2 To adquire the knowledge in mechanical design that enables the student to learn new methods and theories, and equip itself with versatility to adapt to new situations.
R3 Express and communicate ideas and concepts related with mechanical components of machines and systems.
R4 To posses the knowledge of calculations for mechanical elements of machines, including fatigue phenomena, obtaining the loads.
Methodology  Activity

Inclass hours

Out of class hours

A1 Classes

40 

A2 Workshop, exercises

10 

A3 Debate



A4 Project

2

15 
A5 Review of material


10

A6 Individual study


60

A7 Midterms

8 

A8 Office hours


5




Total

60

90

Proficiency

Formative activities 
CG1

A1, A2, A4, A5

CG2

A1, A2, A4, A5

CG3

A1, A2, A4, A5

CG4

A1, A2, A4, A5

CM1 
A1, A2, A4, A5, A6, A8

CB2, CB3 
A4





The teaching language is English. A collection of notes and presentations prepared for this class are available to students in the virtual classrooms (My Aulario) devoted to the subject. Most of the reference literature is published in English. Likewise, most of the material presented by the students enrolled in the course is required to be written in English.
Additionally this course is teached in Spanish and Basque.
Learning Outcome 
Evaluation  Weigth (%)  Recoverability 
R2 R3 R4  Midterms: 2 Midterms during the course. Part 1. Fundamentals of Machine Design: 4,5 Points Part 2. Design of Mechanical elements: 3 Points Mininum of 5 one each midterm for continous assestment  75  Yes 
R1 R2 R3 R4  Workshops: 1 point (mandatory to assist 4 of 5)  10  No 
R1 R2 R3 R4  Practical work: 1.5 points.  15  No 
Fundamentals of mechanical design, mechanical properties of materials, static and dynamic in mechanical design considerations, fatigue, calculation and selection of bearings, bolted connection, calculation of gears, bearings and lubrication.
Part I: Fundamentals of Machine Design
I Basics
Chapter 1. Introduction. Design phases. Safety Factors
Chapter 2 Stress. Normal Stress. Shear Stress. Torsion. Mohr's Circle.
II Materials
Chapter 3. Material Strength
Chapter 4. Stress Concentration factors. Identification of failures . Macroscopic aspects
III Failures Resulting from Static Loading
Chapter 5. Failure theories for Ductile Materials
Chapter 6. Failure theories for Brittle Materials
IV Failures Resulting from Variable Loading
Chapter 7. Fatigue theories. Endurance limit
Chapter 8. Fatigue Strength. Modifying factors
Chapter 9. Characterizing fluctuating stresses
Chapter 10. Cumulative Fatigue Damage.
Chapter 11. Multiaxial Fatigue
Part II: Design of Mechanical Elements
V. Bearings
Chapter 12. Contact Bearings
Chapter 13. Bearing Selection
VI. Elements of Union
Chapter 14. Design of non permanent unions. Bolts
VII. Gear Fatigue
Chapter 15. Gears. Lewis Bending Equation.
Chapter 16. AGMA Stress and Strength equations
VIII. Lubrication
Chapter 17. Lubrication.
Workshops
1. Failure identification
2. Finite Elements. Fundamentals of Ansys
3. Finite Elements. Determination of Kt
4. Finite Elements. Static failures
5. Finite Elements. Fatigue failures
Acceda a la bibliografía que su profesor ha solicitado a la Biblioteca.
Basic Bibliography
Mechanical Engineering Design, Shigley, J.E., Mischke, C.R., McGrawHill, Sixth Edition, 2001.
Complementary Bibliography
"Diseño en Ingeniería Mecánica", J.E. Shigley, ed. McGrawHill. (5ª edición, 4ª en castellano).
Tecnología de Máquinas. Tomo I: Fundamentos: Ejes, Acoplamientos y Apoyos, J.I. Predrero, Unidades Didácticas, UNED, Madrid, 2005.
Fundamentals of Machine Component Design, Juvinall, R.C. , Wiley, 3rd. edition, 2000.
Métodos de Cálculo de Fatiga para Ingeniería, Avilés R., Editorial Paraninfo, 2015.