Course detail

Vibration and Noise of Vehicles

FSI-QDZ-AAcad. year: 2020/2021

In the course, the physical fundamentals of the vibrations and noise sources and propagation are presented. The course introduces analytical and numerical methods of vibration and noise description including experimental methods with subsequent application of these methods to selected problems of motor vehicles. Emphasis is placed on understanding the physical nature of vibrations and noise with subsequent measures to reduce negative effects. The issue is applied to selected cases occurring in technical practice, such as vehicles, powertrains or their components.

Nabízen zahradničním studentům

Pouze domovské fakulty

Learning outcomes of the course unit

The course gives students the opportunity to learn about current computational models, applied at motor vehicle development. Students will gain the knowledge about the up-date numerical methods applied for a solution of noise and vibration problems.

Prerequisites

Matrix calculus, differential and integral calculus, differential equations. Kinematics, Dynamics and Strength of Materials. Fourier analysis and Fourier transformation.

Co-requisites

Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

BRUEL & KJAER. Noise Control. 2nd ed. Naerum, Norsko: Bruel & Kjaer, 1986. ISBN 8787355094.
DE SILVA C. W. Vibration and Shock Handbook. 1st Edition. Taylor and Francis Group. 2005. (EN)
NGUYEN-SCHÄFER, Hung. Aero and Vibroacoustics of Automotive Turbochargers. 1. Stuttgart, Germany: 3, 2013. ISBN 978-3-642-35069-6.
NORTON, M. P. and D. G. Karczub. Fundamentals of Noise and Vibration Analysis for Engineers. Cambridge University Press, second edition, 2004. ISBN 978-0-521-49561-6. (EN)
NGUYEN-SCHÄFER, Hung. Rotordynamics of Automotive Turbochargers. Second Edition. Ludwigsburg, Germany: Springer, 2015. ISBN 978-3-319-17643-7. (EN)
SMETANA, C. et al. Hluk a vibrace: měření a hodnocení. Praha: Sdělovací technika, 1998. ISBN 80-901936-2-5. (CS)
NOVÝ R., KUČERA M. Snižování hluku a vibrací. Praha: Vydavatelství ČVUT Praha, 2009. (CS)

Planned learning activities and teaching methods

The course is taught through lectures explaining the basic principles and theory of the discipline. Exercises are focused on practical topics presented in lectures.

Assesment methods and criteria linked to learning outcomes

Credit conditions are the ability to solve problems independently using software, independent elaboration of assigned tasks without serious deficiencies, fulfillment of tasks during continuous study control and participation in exercises.
Conditions for final examination are orientation in the physical nature of problems, orientation in analytical and numerical problem solving, knowledge with emphasis on understanding the issue, credit and achievement of the prescribed level of points in the final exam.

Language of instruction

English

Work placements

Not applicable.

Aims

The aim of the course is to make students familiar with state-of-the-art of noise and vibration and enable the solution of various problems of motor vehicles by computational and experimentational methods.

Specification of controlled education, way of implementation and compensation for absences

Attendance is monitored in exercises.
The form of replacement of missed lessons is solved individually with the guarantee person of the subject.

Classification of course in study plans

  • Programme N-ADI-P Master's, 1. year of study, summer semester, 6 credits, compulsory
  • Programme N-ENG-A Master's, 1. year of study, summer semester, 6 credits, compulsory-optional

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Syllabus

Basic terms and quantities.
Description and processing of vibroacoustic signals.
Vibration of discrete systems.
Vibration of discrete systems and advanced problems.
Noise propagation through acoustic domain.
Application of finite element method to dynamic problems.
Description of mechanical and aerodynamic sources of noise and vibration.
Vibration and noise of drivetrain components.
Vibration and noise of powertrain components.
Vibration and noise of powertrains.
Vibration and noise of drivetrains.
Vehicle vibration and noise.
Application of methods for noise and vibration solutions.

Computer-assisted exercise

26 hours, compulsory

Teacher / Lecturer

Syllabus

Introduction.
Processing of vibroacoustic signals.
Vibration analysis of vehicle components.
Vibration analysis of vehicle components.
Analysis of vehicle sound sources.
Introduction of commercial tools for dynamic solutions by FEM.
Modal analysis of gearbox housing and analysis of excitation.
Analysis gearbox housing vibrations.
Modal analysis of car cavity and analysis of excitation.
Sound propagation analysis in car cabin.
Vibration and noise analysis of vehicle components.
Vibration and noise analysis of vehicle components.
Vibration and noise analysis of vehicles.

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