Mechanical and Hydraulical Transmissions
| Type | Compulsory |
| Semester | winter |
| Contact hours | 78 (3 + 3) |
| Number of credits | 6 |
| Type of termination | Assessment + Exam |
| Form | Lectures + exercises |
| Lecturers | Doc. Dr. Ing. Gabriela Achtenová |
| Anotation |
TARGET
Educate the basis of design and calculation of frictional driveaway clutches and manually shifted transmissions and their elements
CONTENT
* Introduction
Longitudinal vehicle dynamics. Vehicle resistances, force equilibrium. Speed characteristics of vehicles. Optimal gear ratio definition.
* Friction elements
Friction elements
Clutches (driveaway clutches) – calculation, design
* Manually actuated transmissions
Mechanical transmissions – function, design and trends, determination of ratio
Gear shift systems (Design, calculation, innovations)
Calculation of geometry and stress of gears
Calculation for life of shafts and bearings (specific points for vehicles)
* Automatic transmissions + planetary trains
* Automatic transmissions – function, design and trends
Calculation of elementary gear sets: graphical method, Willis formulae for ratio determination. Energetic study. Calculation of efficiency.
Calculation of nested planetary gear trains: graphical method, Willis formulae and matrix method for ratio determination. Energetic study. Calculation of efficiency.
Conditions of assembly of planetary gear sets
* CVT – function, design and trends
* Hydraulic transmissions
Hydrodynamic torque converter – function, calculation. Laboratory measumerement of characteristic of torque converter.
Hydromechanic transmissions
Mechanisms with split of power flow. Mechanisms combining different transmission types, or different energy sources. Principle and calculation.
Hydrostatic transmissions
* Differentials and mechanisms with more degree of freedom
* 4 wheel drives
Study materials
- Lecturing material and hand-outs
- Lechner, Naunheimer: Automotive Transmissions, Springer Verlag (basis textbook)
- Achtenová G.: Planetary Gear Sests in Automotive Transmissions. Study book. CTU in Prague. 2011
News
03/17/2023
Graduation ceremony - March 202301/20/2020
State exams - February 202005/17/2019
Picnic at CTU in Prague the 28th May 2019CTU
Czech Technical University in Prague
Address
Technicka 4
16607 Prague 6
Czech republic
Phone:
+420 224 352 499
Fax:
+420 224 352 500
E-mail:
gabriela.achtenova@fs.cvut.cz
ITB – Institut Teknologi Bandung
Faculty of Mechanical and Aerospace Engineering
Address
Jl. Ganesa 10
40132 Bandung
Indonesia
Phone:
+62-22-2504243
Fax:
+62-22-2534099
E-mail:
aim@ftmd.itb.ac.id
TU Chemnitz
Technische Universität Chemnitz Fakultät für Maschinenbau
Address
Reichenhainerstr. 70, A016
D-09126 Chemnitz
Deutschland (Germany)
Phone:
+49 371 531 31079
Fax:
+49 371 531 831079
E-mail:
Christian.schmidt@mb.tu-chemnitz.de
HAN – Hogeschool van Arnhem en Nijmegen
Institut of Automotive Engineering and Management
Address
Ruitenberglaan 29
NL-6802 CC Arnhem
The Netherlands
Phone:
+31 (0)6 55 20 88 19
Phone:
+31 (0)26 365 82 15
Fax:
E-mail:
joke.westra@han.nl
ENSTA Bretagne
Ecole Nationale Supérieure de Techniques Avancées Bretagne
Address
2, rue Francois Verny
F-29806 Brest Cedex 9
France
Phone:
+33 (0)2 98 34 89 11
Fax:
+33 (0)2 98 34 88 00
E-mail:
yann.marco@ensta-bretagne.fr
E-mail:
eliane.fonseca@ensta-bretagne.fr
CTU in Prague
Coordinator of MAE
Gabriela Achtenová
gabriela.achtenova@fs.cvut.cz
IT Bandung | Head of Mechanical
Design Research Group
Andi Isra Mahyuddin
aim@ftmd.itb.ac.id
TU Chemnitz
Coordinator of MAE
Diana Lohse
diana.lohse@mb.tu-chemnitz.de
HAN in Arnhem
Masters program manager
Kea Bouwman
Kea.Bouwman@han.nl
ENSTA Bretagne
Coordinator of MAE
Yann Marco
yann.marco@ensta-bretagne.fr