Computational Methods of Transport Machinery

Course guarantor:

Jan Kalivoda

Lecturer:

Jan Kalivoda, Ladislav Rus, Radek Tichánek, Michal Vašíček

Tutor:

Jan Kalivoda, Ladislav Rus, Radek Tichánek, Michal Vašíček

Supervisor:

Department of Automotive, Combustion Engine and Railway Engineering

Synopsis:

Methods for both analysis and synthesis of 3D mechanisms. Computation of elastic joining components. Effects of non-linearities. Development of both mechanical and mathematical models of vehicles. Basic usage of FEM. Local and global coordinate system, matrices of mass, stiffness and damping. Both explicit and implicit solver. Models of materials. Torsional vibration in combustion engines and transmissions, methods of computation. Measurement of torsional vibration. Engine valve train (both kinematics and dynamics). Engine balancing

Requirements:

Conditions for obtaining credit and examination from VMDS

To complete the course, you must obtain credit and pass the examination.

Credit is awarded based on participation in mandatory exercises from VMDS and completion of the so-called Miniproject.

You will receive credit based on a successful presentation of the Miniproject. The credit will include a grade from the evaluation of the Miniproject solution. The credit will be entered in your KOS and is a condition for applying for the VMDS exam.

When solving the Miniproject, consult the progress of the work with the Miniproject lecturers, Dr. Kalivoda, Dr. Tichánek,

and Dr. Vašíček. Consultation days with these lecturers are on the day and time specified in the VMDS exercise schedule.

The exam consists of a written and oral part. Based on the evaluation of the papers by individual lecturers and the grade of the Miniproject, you will receive an overall grade for the exam.

Materials - lectures from VMDS can be found here:

https://studium.fs.cvut.cz/studium/u12120/2211058_VMDS/

Prof. Ing. Ladislav Rus, DrSc

tel. 603169533

Syllabus of lectures:

1. Introduction, terms, conditions of torsional vibrations occurrance, basic procedures of solution

2. Application of procedures based on 1D systems for combustion engines sets

3. Methods of computation of lumped mass systems for combustion engines sets

4. Torsional vibration reduction, clutches, non-linear clutches and dampers

5. Measurements of vibration, analysis of vibration intensity, balancing during operation.

6. Modeling of vehicles dynamic - non-linear systems

7. Optimization of vehicle suspension

8. Computational models of vehicles with non-linear spring and damper elements

9. Vehicle response on excitation from random road bumps

10. Kinematics and dynamics of valve trains

11. Engine balancing

12. Elementals of finite element method

13. Material models in FEM

Syllabus of tutorials:

You must earn credit to complete your degree

The content of the mini-project solution contains some calculations from the calculation areas listed below.

1.Methods of computation of lumped mass systems for combustion engines sets

2.Torsional vibration reduction, clutches, non-linear clutches and dampers

3.Measurements of vibration, analysis of vibration intensity, balancing during operation.

4.Simpack Introduction, Pendulum Model

5.Valve Train Model

6.Modal Analysis of Valve Sprin

7.The computation of natural frequencies of a double-mass systém

8.The creation of a railway two-axle bogie model.

9.The creation of a railway vehicle model, pass curve with superelevation.

10.The computation of natural frequencies of a double-mass system -

individual work.

11.Introduction to Abaqus and static analysis of shell parts

12.FEM analysis of solid parts

13.FEM analysis of assembly and introduction to explicit solver

Study Objective:

Methods of analysis and synthesis of 3D mechanisms.Dynamic of the Vehicle. Stability of the Vehicle.Calculation of elastic elements. Nonlinearity influence. FEM.

Study materials:

-Lectures from VMDS stored on the server: https://studium.fs.cvut.cz/studium/u12120/2211058_VMDS/

-Dynamika kolejových vozidel.Freibauer,Rus,Zahrádka,NADAS,1988

-Teorie kolejových vozidel, Švejnoch a kol.,Skripta ČVUT, 1991

-Dynamické jevy,namáhání a porušování pojezdu lokomotiv,NADAS,1986

-Výpočtové metody ve stavbě motorových vozidel, Apetaur,Stejskal,Baněček,Skripta ČVUT, 1989

Note:

Calculation methods of transport machines-VMDS

Time-table for winter semester 2024/2025:

	06:00–08:0008:00–10:0010:00–12:0012:00–14:0014:00–16:0016:00–18:0018:00–20:0020:00–22:0022:00–24:00
Mon
Tue	roomT4:B1-717 Vašíček M. Kalivoda J. 10:45–12:15 (lecture parallel1 parallel nr.101) Dejvice
Wed
Thu	roomT4:D1-266 Rus L. Tichánek R. 10:45–13:15 (lecture parallel1) Dejvice
Fri

Time-table for summer semester 2024/2025:

Time-table is not available yet

The course is a part of the following study plans:

• 04 109 NSTI DLTT 2012 zaměření MV (compulsory course in the program)
• 05 109 NSTI DLTT 2012 zaměření SM (compulsory course in the program)
• 06 109 NSTI DLTT 2012 zaměření KV (compulsory course in the program)