MECHANICAL SYSTEMS

Bachelor in Automation and Electronics Engineering

Universidad de Alcalá

2016/2017 1º Course – 2º Term

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GUÍA DOCENTE Name of the subject: MECHANICAL SYSTEMS Code: 600006

Bachelor: Bachelor in Automation and Electronics Engineering

Department: Signal Theory and Communications. Type: COMPULSORY ECTS: 6 Course and Term: 1º Course – 2º Term

Teachers: José Luis Pérez Díaz EfrénDíezJiménez(Coordinator)

Office hours: Languages: English and Spanish

1. COURSE SUMMARY

Mechanism and machines form the core and power for industrialization and hence a basic area in industrial engineering. Current industrial production and automation would be impossible without machines. Therefore, an adequate engineering teaching must comprise, for whatever specialization, a solid comprehension of principles and basics of mechanical systems. Countless electronic applications are used for measuring, controlling and monitoring machines, mechanisms and mechanical parameters.

2. COMPETENCIES General competencies: This subject contributes to the acquisition of general competencies from section 3 of annex from Orden CIN/351/2009 TR2: Knowledge on basic and technological subjects, enabling the learning of new methods an theories, providing versatility and adaptation capacity to the students. TR3: Capacity of solving problems with own initiative, decision making, creativity, critical reasoning and capacity of transmission knowledge and skills in the industrial engineering field. TR4: Capacity for performing measurements, calculations, valuation, taxations, , studies, reports, working plans and other similar works. TR5: Capacity for working with specifications, regulations and standards. TR9: Capacity for working on a multilingual and multidisciplinary environment. Professional Competencies:

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This subject contributes to the acquisition of general competencies from section 5 of annex from Orden CIN/351/2009 CI7: Knowledge of theory of machine and mechanisms basics.

Learning results:

RASM7: To calculate kinetics and power relationships in a mechanism.

RASM8: To distinguish among the different kinds of kinematic chains and to obtain by calculations the adequate transmission conditions.

RASM9: To describe the different types of gear and to calculate their dimensional parameters.

RASM10: To list the different types of speed reducers and to select the appropriate one depending on the power and speed conditions.

RASM11: To describe the mechanical couplings as joining systems between shafts and axles. To distinguish the coupling according to their transmitted power and their capacity to compensate axles misalignments.

RASM12: To explain the operation of a clutch, to know the different types and to calculate the forces that appear in their operations

RASM13: To analyze the operation of a brake, to know the different types of brakes and to calculate the involved forces and the braking time. RASM14: To list the bearing applications, their types and to calculate the life working hours. RASM15: To list the applications of a crank mechanisms and to understand and to calculate the forces that appears during operation. RASM16: To analyze cam mechanisms, the different types of cams and followers and to design a Archimedes spiral cam. RASM17: To describe the operation of a kinematic chain consisting of different types of elements that transmit the motion from the motor to the final use connection. RASM18: To use with solvency the technical documentation that specialized manufacturers of mechanisms provide for the calculation of their products.

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3. CONTENTS

Content topics Lesson hours.

• Introduction to mechanisms: clasification, uses anddegreesoffreedom.

• 4h

• ARTICULATEDMECHANISMS:• Fourbars.Grashofconditionand6barsmechanisms.

Kineticsanddynamicsanalysis,synthesisanduses.Kinetics and dynamics of rotational systems. Static andDynamicbalancingofrotors.Designrulesforbearings:typesandselection.

• 30h

• MOTIONTRANMISSION:• Gears:trains,planetary,differential,beltsandchains.• Clutches, brakes, elastic joints, Cardan and

homokineticjoints• Cams

• 18h

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4. LEARING METHODS and ACTIVITIES

4.1. Credits distribution (hourly)

In-person class hours: 28 hours in large group. 24 hours in small group. 6 hours for exams.

Student homework hours: 92 hours (revision of theoretical concepts, activities executions, exercises solutions, etc…).

Total hours 150

4.2. Methodological Strategies, teaching resources

Teaching methods:

Lectures: - basic and general contents presentation. - multimedia resources. Deepening on the previous contents by studying and resolution of exercises and examples by the teachers. Student homework: Individually: - Research of bibliographical resources. - Study and resolution of practical cases. - Individual work for each content topic. In groups: - Study and resolution of practical cases. - Common presentation of the solutions. Tutorial: - Assistance to the students through individual or small groups (2-3 students) tutorial. Moreover, new computing and communication technologies will be used as support to the conventional teaching activities. Web site teaching material, internet information, online forum, webmail, etc…

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5. ASSESSMENT: Procedures and assessment criteria Mastering mechanical systems is associated with the capacity of analysis, synthesis and design those systems. The Procedures and assessment criteria are oriented to determine this skill in the student. Assessment criteria (CE) The next assessment criteria will be considered: CE1: The student i sable to analyze kinematic and dynamically a mechanical system. The student is able to calculate accurately the mechanical involved magnitudes. CE2: The student is able to design useful, efficient and practical mechanical systems. Assessment Instruments

• Mechanical Systems Project (Ei). Individually or in groups. A mechanical system or mechanism pre-project will be assessed. Functionality, reliability, cost, efficiency and other mechanical parameter will be valued.

• Laboratory / Exercise test (PL). Practical exercise test. • Final examination (PEF). Practical and theoretical exercises resolution.

Assessment Criteria This section establish the criteria for passing the subject. ORDINARY CALL (Continuous evaluation) The relationships between criteria, learning results and grade for the ordinary call (continuous evaluation) is described in next table.

TABLE-1

Competency Learning Result

Assessment criteria

Assessment Instrument

Grade Weighting

TR2, TR3, TR4, TR5, TR9 y CI7

RASM7-18 CE1 CE2

Ei 20 PL 40

PEF 40

The student not attending to PEF will be excluded from ordinary continuous evaluation call.

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ORDINARY CALL (Not Continuous evaluation)

TABLE-1

Competency Learning Result

Assessment criteria

Assessment Instrument

Grade Weighting

TR2, TR3, TR4, TR5, TR9 y CI7

RASM7-18 CE1 CE2

PL 40

PEF 60

The student not attending to PEF will be excluded from ordinary call. EXTRAORDINARY CALL (Both Continuous and not continuous evaluation)

TABLE-3

Competency Learning Result

Assessment criteria

Assessment Instrument

Grade Weighting

TR2, TR3, TR4, TR5, TR9 y CI7

RASM7-18 CE1 CE2 PEF 100

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6. BIBLIOGRAPHY

Basic • A.G. Erdman y G.N. Sandor. Diseño de mecanismos, análisis y síntesis. Prentice

Hall, 3ª edición 1998. • Machine Theory, J.L. Pérez Díaz et al , OCW uc3m,

http://ocw.uc3m.es/ingenieria-mecanica/machine-theory Complementary • J. Agulló Batlle, Mecánica de la partícula y del Sólido Rígido, Publicaciones OK

PUNT, Barcelona, 2000. • A. Simón, A. Bataller, A.J. Guerra, J.A. Cabrero. Fundamentos de Teoría de

Máquinas. Ed. Bellisco, 3ª edición 2009.

• G.G. Baránov, Curso de Teoría de Máquinas y Mecanismos. Editorial MIR, 1985.

• A. Bedford y W. Fowler. Mecánica para Ingeniería. (Dinámica). Pearson Education 5ª 2008.

• R. Calero y J.A. Carta. Fundamentos de mecanismos y máquinas para ingenieros. E McGraw-Hill. 1998.

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• Teoría de máquinas y mecanismos. Joseph Edward Shigley; John Joseph Uicker Jr. Editorial MacGraw-Hill

• Elementos de máquinas. Volumen I .G.Niemann.Editorial Labor, S.A • . • Diseño de elementos de máquinas. Robert L. Mott. Segunda Edición.

PRENTICE-HALL. • Elementos de máquinas. Hamrock,/Jacobson/Schimd. McGrawHill • Diseño de maquinaria. Norton. Editorial MacGraw-Hill. • Diseño de ingeniería mecánica. Joseph Edward Shigley; Larry D. Mitchel.

Editorial MacGraw-Hill. Quinta edición.