Universidad de Jaén

The subject comprises five thematic blocks:

• Kinematics of particles and solids.
• Theory of machines and mechanisms
  
• Kinetics of particles, solids and planar mechanisms.
• Basics of vibration analysis.
  
• Basics of cam and gear design.

A.- KINEMATICS:

Lesson 1: Introduction. Cinemática de la partícula y movimiento relativo.

• Introduction.
• Rectilinear motion.
  • Basics: position, velocity and acceleration.
  • Determination of the motion of particles.
  • Uniform rectilinear motion.
  • Uniformly accelerated rectilinear motion.
  • Relative motion of particles.
• Curvilinear motion.
  • Position, velocity and acceleration vectors.
  • Derivatives of vector functions.
  • Rectangular componentes of velocity and acceleartion.
  • Motion relative toa frame in translation.
  • Tangential and normal components.
  • Radial and transvers components.
  • Motion of a particle in space: cylindrical coordinates.

Lesson 2: Kinematics of rigid bodies.

• Introduction. Types of rigid-body motion.
• Translation.
• Rotation about a fixed axis.
• General plane motion
  
• Rotation about a fixed point.
• General Motion.
• Motion relative to a moving rotating frame.

B.- MECHANISMS THEORY:

Lesson 3: Fundamentals of machina and mechanisms theory.

• Introduction.
• Basics.
• Classification of motion.
• Determination of the degrees of freedom.
• Isomers.
• Linkage transformation.
• Kinematic inversion.
• Grashof's law.
• Practical considerations.

Lesson 4: Kinematic analysis of planar mechanisms.

• Graphic posture analysis.
  
• Algebraic posture analysis.
  
• Transmission angle.
  
• Extreme positions.
  
• Instant rotation centers (IRC).
• Velocity analysis with IRC.
• Analytical solutions for velocity using loop-closure equations.
• Mechanical advantage.
  
• Analytical solutions for acceleration using loop-closure equations.
• Dimensional synthesis of basic planar linkages.

C.- DYNAMICS:

Lesson 5: Kinetics of the particle I: Newton's second law.

• Newton's second law.
• Linear momentum of a particle.
• Motion equation.
• Dynamic equilibrium.
• Angular momentum of a particle.
• Central-force motion. Conservation of angular momentum.
• Gravitational attraction.

Lesson 6: Kinetics of the particle II: Energy and momentum methods.

• Work of a force.
• Kinetic energy. Principle of work and energy.
• Power and efficiency.
• Conservation of energy.
• Principle of impulse and momentum.
• Impulsive motion.
• Impacts

Lesson 7: Systems of particles.

• Introduction.
• Newton's second law.
• Linear and angular momentum.
• Mass center.
• Angular momentum of a system of particules about its mass center.
• Kinetic and potencial energy. Conservation of energy.
  
• Principle of impulse and momentum.
• Variable systems of particles.

Lesson 8: Kinetics of solids I: Forces and acceleration

• Rigid-body motion equations.
• Angular momentum.
• Plane motion.
• Constrained plane motion.
  • Noncentroidal rotation.
  • Rolling motion.

Lesson 9: Kinetics of solids II: Energy and momentum methods.

• Work of forces and couples in a solid.
• Kinetic energy. Principle of work and energy.
• Power of a rigid body.
• Conservation of energy.
• Principle of impuls and momentum.
• Eccentric impact.

D.- INTRODUCTION TO MECHANICAL VIBRATIONS:

Lesson 10: Fundamentals of vibration.

• Introduction.
• Concepts of vibration.
• Vibration classification.
• Components of vibratory systems.
  • Spring elements.
  • Damping elements.
• Analysis of vibratory systems.
• Harmonic motion.
  • Vectorial representation.
  • Complex algebra representation.
  • Definitions and terminology.

Lesson 11: Free vibration of single-degree-of-freedom systems.

• Free vibration of undamped systems.
• Free vibration with viscous damping.
• Logarithmic decrement.

Lesson 12: Forced vibration of single-degree-of-freedom systems.

• Motion equations.
• Response of an undamped system under harmonic force.
• Response of a damped system under harmonic force.

E: KINEMATICS OF CAMS AND GEARS:

Lesson 13: Kinematic design of cams and gears

• Cam design
  
  • Introduction to cams.
  • Classification of cam-follower mechanisms.
  • Cam kinematics.
  • Manufacturing and design considerations.
  • Cam dynamics.

• Gear design
  
  • Introduction to gears.
  • Parts and terminology
  • Gear kinematics: gearing law.
  • Contact ratio.
  • Gear classification.
  • Gear trains.
    
  • Gear dynamics.

PRACTICES

• Practice 1: Kinematics of particles by numerical methods.
• Practice 2: Kinematics of mechanisms by numerical methods.
• Practice 3: Kinematic simulation of mechanisms by CAD software.
• Practice 4: Resolution of non-linear kinetic problems.
• Practice 5: Experimental analysis of 1-degree-of-freedom vibrations.

A1.
Lectures:
The contents specified in section 5 of this guide are developed in
them, alternating the explanation of theoretical knowledge (CB2 and
CT2)with the
exposition of the general methods of posing problems (CB3 and CB5)
and the solving exercises-type (CEM9).
A2. Practices:
They consist of 5 sessions of two hours, where the student learn to
use new computation and experimental technologies for the content
of the subject (CB3, CB5, CEM9 y CT4) through practical activities
of computational simulation
(M6) and laboratory experiments (M9).
A3. Group tutorials:
They consist of sessions in seminar format (M15) or collective
sessions of resolution of doubts (M17) to deal with collateral
aspects necessary for the correct assimilation of the contents of
the subject.

Students with special educational needs should contact the Student Attention Service (Servicio de Atención y Ayudas al Estudiante) in order to receive the appropriate academic support

The evaluation is carried out mainly by means of a written exam, which consists mainly of exercises and practical problems. Both the choice of the resolution method and the accuracy and expression of the results will be evaluated in them. Additionally, it may contain questions of theory with a weight not exceeding 30% of the exam grade. This is rated from 0 to 10 points and with this it is intended to evaluate the competences CEM9, CT2, CT6, CB2, CB3, CB5 and the results Resul-01, Resul-02, Resul-03, Resul-04, Resul-05, Resul-06 and Resul-07. However, to pass the course, the minimum grade on the written exam must be greater than 4.5 points. The practices will evaluate the specific competences CEM9, CT2, CT4, CT6, CB2, CB3, CB4, CB5. Attendance and delivery of practical exercises are mandatory. In addition, it is necessary to obtain a minimum score of 3 points out of 10 in each of the reports of the practices presented. If the practice reports are not delivered on the dates set by the teacher through the PLATEA platform (deliveries by email are not accepted), the subject cannot be passed.

The course is approved or suspended in each call, in its entirety; including theory, problems and practices and the results Resul-01, Resul-02, Resul-03, Resul-04, Resul-05, Resul-06 and Resul-07.

The student may request a single test evaluation, in which the weight of the exam would be 100% of the grade of the subject, only under the exceptional circumstances set out in article 13 of the Reglamento de Régimen Académico y de Evaluación del Alumnado de la Universidad de Jaén . The application, accompanied by due justification, can only be made during the teaching period of the subject.

TEACHING METHODOLOGY AND FORMATIVE ACTIVITIES

(*) The Center may establish a different attendance percentage depending on the number of students and the capacity of the classroom / laboratory in accordance with health measures.

(**) The Center may establish rotating attendance depending on the number of students and the capacity of the classroom / laboratory in accordance with the sanitary measures (class in the schedule and classroom / laboratory assigned to a part of the group and broadcast by videoconference to the rest, with periodic rotation of students, as determined by the Center).

ASSESSMENT METHODOLOGY

The assessment methodology for the subject under this modality is combination of continuous evaluation through works and practices, and a final exam. The subject is approved as a whole in all the calls, so the weights and conditions of the different parts remain unchanged.

The student may request a single test evaluation, in which the weight of the exam would be 100% of the grade of the subject, only under the exceptional circumstances set out in article 13 of the Reglamento de Régimen Académico y de Evaluación del Alumnado de la Universidad de Jaén . The application, accompanied by due justification, can only be made during the teaching period of the subject.

RESOURCES

For the adaptation of teaching and evaluation to the online mode, the tools enabled by the University of Jaén will be used for this purpose: Google Meet, Google Jamboard, Google Forms, ILIAS platform, etc.

In particular, for practices and the work, CAD and simulation software, as well as for numerical calculation will be used, which can be accessed through free-access computer rooms, virtual pcs or through free student licenses available for installation on their pcs.

In addition, for both exams and presentation of jobs or exercises in which it is applicable, it is necessary that the student has a webcam and microphone as means of interaction and identification against fraud.

TEACHING METHODOLOGY AND FORMATIVE ACTIVITIES

ASSESSMENT METHODOLOGY

The assessment methodology for the subject under this modality is combination of continuous evaluation through works and practices, and a final exam. The subject is approved as a whole in all the calls, so the weights and conditions of the different parts remain unchanged. In view of the eventuality of moving towards this completely non-face-to-face modality, these criteria are maintained with respect to the mixed modality with the aim of not altering the conditions of evaluation of the students.

The student may request a single test evaluation, in which the weight of the exam would be 100% of the grade of the subject, only under the exceptional circumstances set out in article 13 of the Reglamento de Régimen Académico y de Evaluación del Alumnado de la Universidad de Jaén . The application, accompanied by due justification, can only be made during the teaching period of the subject.

RESOURCES

For the adaptation of teaching and evaluation to the online mode, the tools enabled by the University of Jaén will be used for this purpose: Google Meet, Google Jamboard, Google Forms, ILIAS platform, etc.

In particular, for practices and the work, CAD and simulation software, as well as for numerical calculation will be used, which can be accessed through virtual pcs or through free student licenses available for installation on their pcs.

In addition, for both exams and presentation of jobs or exercises in which it is applicable, it is necessary that the student has a webcam and microphone as means of interaction and identification against fraud.

Institution in charge of data processing: Universidad de Jaén, Campus Las Lagunillas, s/n, 23071 Jaén

Data Protection Delegate: dpo@ujaen.es

Purpose: In accordance with the Universities Law and other national and regional regulations in force, carrying out exams and assessment tests corresponding to the courses students are registered in. In order to avoid frauds while sitting the exam, the exam will be answered using a videoconference system, being able the academic staff of the University of Jaén to compare and contrast the image of the person who is answering the exam with the student's photographic files. Likewise, in order to provide the exam with evidential content for revisions or claims, in accordance with current regulation frameworks, the exam will be recorded and stored.

Legitimacy: compliance with legal obligations (Universities Law) and other national and regional regulations currently in force.

Addressees: service providers who are the owners of the platforms where the exams are carried out and with whom the University of Jaén has signed the corresponding data access contracts.

Storage periods: those established in current in force regulations. In the specific case of exam videoconference recordings, not before the examination records and transcripts are closed or the exam can still be reviewed or challenged.

Rights: you can exercise your right of access, amendment, cancellation, opposition, suppression, limitation and portability by sending a letter to the postal or electronic address indicated above. In the event that you consider that your rights have been violated, you may submit a complaint to the Andalusian Council for Transparency and Data Protection www.ctpdandalucia.es

Person in charge: Universidad de Jaén, Paraje Las Lagunillas, s/n; Tel.953 212121; www.ujaen.es

Data protection delegate (DPO): TELEFÓNICA, S.A.U. ; Email: dpo@ujaen.es

Procedure aim: To manage proper recordings of teaching sessions with the aim of facilitating learning process under a multimodal and/or online teaching

Period for record storage: Images will be kept during legal term according to regulations in force

Legitimacy: Data will be managed according to legal regulations (Organic Law 6/2001, December 21, on Universities) and given consent provided by selecting corresponding box in legal admission documents

Data recipients (transfers or assignments): Any person allowed to get access to every teaching modality

Rights: You may exercise your rights of access, rectification, cancellation, portability, limitation of processing, deletion or, where appropriate, opposition. To exercise these rights, you must submit a written request to the Information, Registration and Electronic Administration Service of the University of Jaen at the address above, or by e-mail to the address above. You must specify which of these rights you are requesting to be satisfied and, at the same time, you must attach a photocopy of your ID card or equivalent identification document. In case you act through a representative, legal or voluntary, you must also provide a document that proves this representation and identification. Likewise, if you consider that your right to personal data protection has been violated, you may file a complaint with the Andalusian Data Protection and Transparency Council www.ctpdandalucia.es