Drives and Gears

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Course Unit Code338-0519/02
Number of ECTS Credits Allocated5 ECTS credits
Type of Course Unit *Compulsory
Level of Course Unit *Second Cycle
Year of Study *First Year
Semester when the Course Unit is deliveredSummer Semester
Mode of DeliveryFace-to-face
Language of InstructionCzech
Prerequisites and Co-Requisites Course succeeds to compulsory courses of previous semester
Name of Lecturer(s)Personal IDName
HRU38doc. Dr. Ing. Lumír Hružík
DVO31Ing. Lukáš Dvořák, Ph.D.
VAS024doc. Ing. Martin Vašina, Ph.D.
FOJ077Ing. Kamil Fojtášek, Ph.D.
Summary
Students will acquaint with the fundamentals of dynamics and kinematics of the drive. They will acquaint with energy - thermal balance of energy transfer. They will acquaint with the characteristics of different types of motors (electric motors, combustion engines, hydro-motors, pneumatic motors) and gears (mechanical, hydrostatic, hydrodynamic, combined). They will be able to choose the suitable combination of motor and gear at the drive design.
Learning Outcomes of the Course Unit
There are given the fundamentals of kinematics and dynamics of drive and energy-thermal balance of energy transfer in the subject. There are named the properties, characteristics and controls of combustion engines, electric motors, pneumatic motors, hydraulic motors and pneumatic motors. The theory, characteristics, construction and use of mechanical gears, hydrostatic and hydrodynamic gears (connectors and converters) are discussed. Further, the combined gears are examined. The subject also deals with multi-motor drives and choice the drive and gear for various machines and technological equipment.
Course Contents
The program of lectures

Week Lectures content
1 Purpose and definitions of power. Kinematics load. The basic equation of motion.
2 Application of equations of motion, work load and drive systems. Optimization of power transfer.
3 Energy balance of heat transfer performance. Power losses.
4 Motors: classification, characteristics, properties. DC and AC motors.
5 Engines - classification, characteristics, properties, regulation.
6 Combustion turbines. Pneumatic motors. Motors.
7 Mechanical transmission, distribution, properties and loss.
8 Hydrostatic transmission, structure, parameters of regulation.
9 Hydrodynamic transmission, distribution, properties. Hydrodynamic coupling theory, design characteristics.
10 Torque converter, theory, design characteristics. Cooperation hydrodynamic transmission with driver.
11 Combined transfers. Purpose and application. Branching performance.
12 Multi-engine drives. The theory characteristics.
13 A common characteristic of the motor and load. Design and calculation of the driving engines.
14 Comparison of different types of power transfer. Consultation.

Program of exercises and seminars + individual students' work

Week Content of exercises and seminars
1 Continuation of a lecture.
2 Application of equations of motion. Parameters drive the heavy door.
3 Calculation of the characteristic drive. Calculation of the travel drive
vehicle. Program No. 1
4 Calculation of warming and cooling in the hydrostatic power transmission.
Program No. 2
5 Seminar - brochures transfers, engines and applications.
6 Calculation of regulating the characteristics of the hydrostatic transmission.
7 Consultation for the specified programs.
8 Calculation of hydrodynamic coupling.
9 Continuing the calculation of hydrodynamic coupling.
10 Calculation of the hydrodynamic characteristics of the drive.
11 Control Test.
12 Calculation of multi-engine drive.
13 Reserve and consultations.
14 Credits

List of questions to eqamination

No. Wording of the question
1 Purpose of the drive, the distribution, composition and management. Types of engines and transmission mechanisms.
2 Drives starting procedures, basic relations, confrontation.
3 The fundamental equation for power and torque reduction. Working modes of drives.
4 Allocation of machines according to the nature of the burden, equiv. moment.
5 Power dissipation, an equivalent value. The thermal energy equation.
6 The course of warming and cooling. Calculation of cooling.
7 DC motors, characteristics, speed control, braking. Applications.
8 AC motors, characteristics, speed control, braking. Applications.
9 Internal combustion piston engines, characteristics, parameters. Increasing the power piston internal combustion engines, control, use.
10 Combustion turbines, characteristics, regulation, use.
11 Hydraulic motors, distribution, characteristics, advantages and disadvantages of use. Low speed hydraulic motor.
12 Basic characteristics of motors, control output parameters.
13 Hydraulic braking, the field of use.
14 Pneumatic motors, characteristics, advantages and disadvantages, working parameters, control, use.
15 Mechanical transmission, distribution and parameters. Harmonic transmission.
16 Speed chart, losses and efficiency.
17 Hydrostatic transmission, distribution, speed and torque transformation.
18 Control range and characteristics of the hydrostatic transmission.
19 Combined mechanical and hydrostatic transfers, composition, characteristics, efficiency.
20 Hydrodynamic transmission, distribution, basic characteristics.
21 Hydrodynamic coupling, principle of operation, characteristics, regulation.
22 Hydraulic brake, principles, characteristics, applications.
23 Torque converter, principles, structure, characteristics.
24 Combined mechanical and hydrodynamic transfers, composition, characteristics, use.
25 Multi-engine drives, benefits, organization, theory, optimization.
26 The common characteristics of the motor and load, design, static steadiness.

Recommended or Required Reading
Required Reading:
[1] EXNER, H. et al. Basic Principles and Components of Fluid Technology. Lohr am Main, Germany: Rexroth AG., 1991. 344 p. ISBN 3-8023-0266-4.
[2] DESHPANDE, M.V. Electric Motors. Applications and Control. Eastern Economy Edition, 2010. 228 p. ISBN: 978-81-203-3643-8.
[3] BEATER, P. Pneumatic Drives. Springer, 2007. 324 p. ISBN 978-3-540-69470-0.
[1] KOPÁČEK, J. Pohony a převody. VŠB – TU Ostrava, 2000, 211 s. ISBN 978-80-248-1967-9.

[2] KOPÁČEK, J.,PAVLOK, B. Tekutinové mechanismy. VŠB – TU Ostrava, 1994. 151 s. ISBN 80-7078-238-2.
Recommended Reading:
[1] GÖTZ, W. Hydraulics. Theory and Applications. Ditzingen, Germany: OMEGON, 1998. 291 s. ISBN 3-980-5925-3-7.
[2] DE, N.K., SEN, P.K. Electric Drives. Applications and Control. Eastern Economy Edition, 2006. 324 p. ISBN: 978-81-203-1492-4.
[1] PAVLOK, B. Hydraulické prvky a systémy. Díl 1. VŠB – TU Ostrava, 1999. 158 s. ISBN 80-7078-620-5.
[2] KOPÁČEK, J. Mechanické a hydraulické převody. Hydraulické převody. VŠB – TU Ostrava 1996.
[3] TRNKA, J., URBAN, J. Spalovacie motory. Alfa Bratislava, 1992, 563 s., ISBN 80-05-01081-8.
[4] PAVLOK, B., HRUŽÍK, L., BOVA, M. Hydraulická zařízení strojů. VŠB – TU Ostrava, 2007. 116 s. Dostupné z: http://www.338.vsb.cz/studium/skripta/
[5] EXNER, H. et al. Basic Principles and Components of Fluid Technology. Lohr am Main, Germany: Rexroth AG., 1991. 344 p. ISBN 3-8023-0266-4.
[6] DESHPANDE, M.V. Electric Motors. Applications and Control. Eastern Economy Edition, 2010. 228 p. ISBN: 978-81-203-3643-8.
[7] MÁLIK, L., KUČERA, L. Mechanické, hydraulické a hydromechanické prenosy. Žilinská univerzita v Žilině, EDIS, 1999. 417 p. ISBN 80-7100-513-4.

Další studijní opory na http://www.338.vsb.cz/studium/studijni-opory/ nebo http://homel.vsb.cz/~dor028/Opory/
Planned learning activities and teaching methods
Lectures, Tutorials, Experimental work in labs, Other activities
Assesment methods and criteria
Task TitleTask TypeMaximum Number of Points
(Act. for Subtasks)
Minimum Number of Points for Task Passing
Exercises evaluation and ExaminationCredit and Examination100 (100)51
        Exercises evaluationCredit35 18
        ExaminationExamination65 25