Code: mk3mgepg04rx17-en
ECTS Credit Points: 4
Evaluation: exam
Year, Semester: 2nd year, 1st semester
Its prerequisite(s): Aircraft Technology
Further courses are built on it: Yes/No
Number of teaching hours/week (lecture + practice): 2+2
Topics:
The series of lectures are based on the topics of mechanics. It reviews the standardised presentation of machine elements and tolerance and fit systems; the set-up of a machine group, the connection of its elements and their operation. In the course students acquire the features of prime mowers, machines; the different types of clutches and couplings; the bearing support of shafts and the most widely applied rolling bearings; different types of frictional and positive connection drives; types of brakes and application fields. In practice the different machines and machine elements are introduced and the selection of them from brand catalogues: rolling bearings, couplings, belt and pulley, chain and sprocket.
Literature:
Compulsory:
- Ansel Ugural, New Jersey Institue Tech: Mechanical Design: An Integrated Approach, 1st Edition Hardcover with access card, ©2004, Isbn-13 9780072921854
- Tiba Zsolt: Machine Drawing, Debrecen University Press 2010. Isbn 978-963-318-066-2,
- Tiba Zsolt: Drivetrain Optimization, Lambert Academic Publishing, 2016. (Isbn: 9783659859274)
- Tiba Zsolt: Basic constructions of machine design, Lambert Academic Publishing, 2017. (Isbn: 978-3-330-34649-9)
Recommended:
- Optibelt: Technical Manual V-belt drives http://www.optibelt.com/fileadmin/content/pdf/Produkte/EN/Optibelt-TH-v-belt-drives.pdf
- Rexnord: Roller Chains http://www.rexnord.com/ContentItems/TechLibrary/Documents/7010_Rexnord-and-Link-Belt-Rollerchains_Catalog-p.aspx
| 1st week | 8th week |
|---|---|
| Registration week | 1st drawing week |
| 2nd week | 9th week |
| Lecture: Tolerance and fit systems Practice: Calculation of tolerance types and fits | Lecture: Seals, operation principles. Contacting and non -contacting seals and their application fields. Practice: Showing the different types of seals, choosing them from brand catalogues. |
| 3rd week | 10th week |
| Lecture: Set-up of a machine group, operation and operation requirements Practice: Characteristicsand operation features of prime mowers,machines and precondition of stabile running | Lecture: Clutches and couplings. Types, operation features, application fields. Practice: Stiff, flexible and universal joints. Introduction in lab and choosing from catalogues. |
| 4th week | 11th week |
| Lecture: Linkage mechanisms, types of constraints. Statically determinate, indeterminate and unstable constructions Practice: Analyzing linkage mechanisms: suspension systems of vehicles and airplanes. | Lecture: Heat balance of braking. Types of brakes, actuation of them, operation method. Practice: Showing brakes. Analyzing the operation of them. |
| 5th week | 12th week |
| Lecture: Construction details of shafts and its parts, functions. Keyed and splined joints of shafts transmitting the peripheral force. Practice: Construction of keyed and splined joints, sizing. | Lecture: Types of belt drives, operation features, application fields. Practice: Pulley constructions, belt sections, design of belt drive, applying design charts. |
| 6th week | 13th week |
| Lecture: Shaft bearing systems. Most widely applied rolling bearings and their features. Practice: Introduction of different types of rolling bearings and choosing them from brand catalogue. | Lecture: Types of chain drives, operation features, application fields. Practice: Sprocket and chain constructions. Design of chain drive, applying design charts. |
| 7th week | 14th week |
| Lecture: Bearing arrangements. Locating, non-locating bearing arrangement. Cross located bearing arrangements with adjusted or floating bearings. Selection of ball and roller bearings for service life. Practice: Explanation of shaft bearing constructions. | Lecture:Types of gear drives. Operation and their application fields. Practice: Explanations of gear drive constructions. Ratio calculation. |
| 15th week | |
| 2nd drawing week |
Requirements
A, for a signature:
Attendance at lectures is recommended, but not compulsory. Participation at practice classes is compulsory. A student must attend the practice classes and may not miss more than three times during the semester. In case a student does so, the subject will not be signed and the student must repeat the course. A student can’t make up any practice with another group. Attendance at practice classes will be recorded by the practice leader. Being late is equivalent with an absence. In case of further absences, a medical certificate needs to be presented. Missed practice classes should be made up for at a later date, to be discussed with the tutor.
Students are required to bring the drawing tasks and drawing instruments of the course to each practice class. Active participation is evaluated by the teacher in every class. If a student’s behavior or conduct doesn’t meet the requirements of active participation, the teacher may evaluate his/her participation as an absence because of the lack of active participation in class.
Students have to submit all the designing tasks as scheduled minimum at a sufficient level.
During the semester there are two tests: the mid-term test in the 8th week and the end-term test in the 15th week. Students have to sit for the tests.
B, for a grade:
The course ends in an examination. Based on the average of the grades of the designing tasks and the examination, the exam grade is calculated as an average of them:
- the average grade of the two designing tasks
- the result of the examination
The minimum requirement for the mid-term and end-term tests and the examination respectively is 60%. Based on the score of the tests separately, the grade for the tests and the examination is given according to the following table:
Score / Grade
0 - 59 % = fail (1); 60 – 69 % = pass (2); 70 – 79 % = satisfactory (3); 80 - 89 % = good (4); 90 - 100 % = excellent (5)
If the score of any test is below 60, students can take a retake test in conformity with the EDUCATION AND EXAMINATION RULES AND REGULATIONS.
An offered grade: it may be offered for students if the average grade of the designing tasks is at least good (3) and the average of the mid-term and end-term tests is at least good (3). The offered grade is the average of them.