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General information

Subject type: Mandatory

Coordinator: Joan Triadó Aymerich

Trimester: First term

Credits: 4

Teaching staff: 

Pablo Alberto Genovese

Teaching languages

  • Spanish
  • Catalan

Skills

Basic skills

  • B2-That the students know how to apply their knowledge to their job or vocation in a professional way and have the skills that are demonstrated through the elaboration and defense of arguments and the resolution of problems within their area of 'study

  • B4_That students can convey information, ideas, problems and solutions to both specialized and non-specialized audiences

     

Specific skills

  • Have knowledge and skills for the calculation, design and testing of machines

Description

The subject Mechanisms and Machines I, centered in the analysis of mechanisms, presents an integral training in this field incorporating also the subject of synthesis of mechanisms. It is a key element for the consolidation of learning, as it allows students to apply in the design of machine elements that has been worked on in other subjects. On the other hand, it is a key source of theoretical and applied knowledge for the professional practice of the mechanical engineer with regard to Machine Design.

Contents

  1. Introduction to the kinematics and dynamics of machines
    • Kinematics and Kinetics.
    • Mechanisms and machines
    • Applications of kinematics
  2. Fundamentals of kinematics
    • Degrees of freedom or mobility
    • Kinematic links
    • Chains and Kinematic Diagrams
    • Mechanisms and structures
    • Grashof's condition
  3. Synthesis of mechanisms
    • Generation of function, trajectory and movement
    • Limit conditions
    • Dimensional synthesis
    • Coupler curves
    • Cognitive Mechanisms
  4. Position analysis
    • Coordinate Systems
    • Position and displacement
    • Translation, rotation and complex movement
    • Algebraic analysis of position of mechanisms
    • Position of any point on a mechanism
    • Transmission angles, Stiffening positions
    • The Newton-Raphson solution method
  5. Speed ​​analysis
    • Definition of speed
    • Sliding speed
    • Analytical solutions for speed analysis
    • Speed ​​of any point of a mechanism
  6. Acceleration analysis
    • Definition of acceleration
    • Analytical solutions for acceleration analysis
    • Acceleration of any point of a mechanism
    • Human tolerance for acceleration
  7. Analysis of static forces
    • Applied and restraining forces
    • Conditions for balance
    • Free body diagrams
    • Elements of two and three forces
    • Elements of four forces
  8. Fundamentals of dynamics
    • Laws of Newton's motion
    • Dynamic models
    • Moment of Inertia
    • Parallel axis theorem
    • Energy methods: virtual work
  9. Dynamic force analysis
    • Newtonian solution method
    • A single link in pure rotation
    • Force analysis of a crank and four bar articulated connecting rod mechanism
    • Strength and moment of shaking
    • Force transmission index in a mechanism

Evaluation system

The calculation for the Final Grade (NF) of the subject is:

NF = 0,3 Ex1 + 0,3 Ex2 + 0,2 Vid + ​​0,2 Pr

  • NF: Final Note
  • Ex1: 1st Partial Exam.
  • Ex1: 2nd Partial Exam.
  • Vid: Integrator Video Note.
  • Pr: Average grade of practices.

Clarifications:

  • Minimum grade for each of the exams is 4 (four). In the event that any of the grades for Ex1 and Ex2 activities are below the minimum grade, the final grade for the subject will be limited to 4.
  • The minimum Pr grade is 4. If the Pr grade is below the minimum grade, the final grade of the subject will be limited to 4.
  • The minimum Vid grade is 4. If the Vid grade is below the minimum grade, the final grade of the subject will be limited to 4.

Recovery:

  • In the recovery period only Ex1 and Ex2 are reassessed. The rest of the activities are not recoverable.
  • The minimum marks established for all activities are maintained.
  • The previous calculations will be applied to obtain the final grade of the subject.

REFERENCES

Basic

Genovese, Pablo A. (2020). Notes of Mecanismos y Máquinas I. Mataró: ESUPT Tecnocampus.

Sanmiguel Rojas, Enrique, & Hidalgo Martínez, Manuel (2014). Analysis of mechanisms. Madrid: Ediciones Paraninfo.

Complementary

Cardona Foix, Salvador, & Clos Costa, Daniel (2008). Theory of machines. Barcelona: Editions UPC.

Erdman, Arthur G., & Sandor, George N. (1998). Design of Mechanisms: Analysis and Synthesis. Mexico City: Prentice Hall.

Norton, Robert L. (2013). Machinery design. México DF: McGraw-Hill - Interamericana de Editores SA de CV

Uicker, Jr., John J., Pennock, Gordon R., & Shigley, Joseph E. (2017). Theory of Machines and Mechanisms. New York: Oxford University Press.