Course: Mechanical Engineering Design II

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Course title Mechanical Engineering Design II
Course code USE/KX029
Organizational form of instruction Lecture
Level of course Bachelor
Year of study not specified
Semester Summer
Number of ECTS credits 5
Language of instruction Czech
Status of course Compulsory
Form of instruction unspecified
Work placements unspecified
Recommended optional programme components None
Lecturer(s)
  • Krmela Jan, prof. Ing. Ph.D.
Course content
Contents of the subject: 1. Introduction, principles of dimensioning based on analysis of loading and properties of material, allowable stress, safety, items of design documentation for manufacture. Material joints: welded, brazed and bonded. 2. Fasteners: threads, screws, bolts and nuts with accessories, tightening force and torque requirement. Power screws, set screws. Pins and rivets. 3. Connections: split hub fixed on a pivot, hub fixed on a tapered spindle, pressed hub on a shaft, keys and keyways, spline and serrated shafts. 4. Axles and shafts: static and dynamic strength, notch sensitivity, deflection of shouldered shaft supported by two bearings, critical revolutions and principles of rotor balancing. 5. Bearings and shaft seals: kinds of friction, journal and rolling-contact bearings, properties of lubricants, sealing components, centring of bearings and flanges. 6. Gears I.: gear ratio, transmission of power and torque, types of gears, mash of involute teeth, spur gears and their dimensions, gear forming and the problem of interference, internal gear with pinion. 7. Gears II.: helical gears and their dimensions, spiral gears, tooth corrections, force analysis of spur and helical gears, design of gears. 8. Gears III.: bevel gears, worm gears, gear trains, basics of planetary trains. Gear materials, precision of manufacture, workshop measurements, lubrication. 9. Flexible mechanical elements: roller chains, flat and V-belts, wire rope, flexible shafts. 10. Couplings and joints: split-, flange- and flexible couplings, square-jaw and overload release clutch, centrifugal and freewheeling clutch. Universal joints and their properties, constant velocity joints. 11. Clutches and brakes: cone and disk type clutch, disk and drum type brake, band type brakes. Friction elements. Hydrodynamic coupling and retarder. 12. Mechanical springs: stress, deflection and design of helical and torsion springs, Belleville spring, flexible rubber-steel elements. 13. Hydraulic piping and valves.

Learning activities and teaching methods
unspecified
Learning outcomes
Characteristics and fundamental tasks: The subject deals with machine parts as components of general use in construction of different mechanisms that are mostly standardized. Referring to the complexity, these components range from simple items to rather complicated units. The aim of the subject is to provide the students with facts about the basic kinds of machine components in context to their standardization and manufacture, about their function and properties and about combining the simple parts into more complex units. As the manufacture should put reliable, durable and safe products on the market, the students must become able to evaluate their design with regard to the dimensions, strength and material and be acquainted with recent progress in this field. The students should also get skill in reading the drawings and producing the design documents assisted by computation.

Prerequisites
unspecified

Assessment methods and criteria
unspecified
Recommended literature
  • Grečenko, A. Strojní součásti. 2000.
  • Jančík, L., Zýma, J. Části a mechanizmy strojů. 1996.
  • Kolektiv. Slovník spisovné češtiny. 1995.
  • Kolektiv. Strojírenská příručka, zejména svazky 5 a 6. 1994.
  • Křivý, J. Výběr z norem pro konstrukční cvičení. Sešit č. 3. Součásti pohonů. 1997.


Study plans that include the course
Faculty Study plan (Version) Category of Branch/Specialization Recommended year of study Recommended semester
Faculty: Faculty of Mechanical Engineering Study plan (Version): Production Management (11) Category: Mechanical engineering and mechanical production 2 Recommended year of study:2, Recommended semester: Summer
Faculty: Faculty of Mechanical Engineering Study plan (Version): Energetics - Heat Industry (17) Category: Special and interdisciplinary fields 2 Recommended year of study:2, Recommended semester: Summer
Faculty: Faculty of Mechanical Engineering Study plan (Version): Production Management (16) Category: Mechanical engineering and mechanical production 2 Recommended year of study:2, Recommended semester: Summer
Faculty: Faculty of Mechanical Engineering Study plan (Version): Production Management (17) Category: Mechanical engineering and mechanical production 2 Recommended year of study:2, Recommended semester: Summer