Noise and Vibration in Environment

Course Description

Basic noise and vibration parameters. Noise and vibration measurement transducers. Sound propagation in free field, tubes and ducts. Noise protection measures, noise barriers, noise maps. Active noise protection. Personal means of noise protection. Systems with single and multiple degrees of freedom. Methods of vibration damping and protection. Norms and regulation.

Learning Outcomes

  1. distinguish sound and vibration indicators based on sound pressure, intensity and power levels and vibration levels
  2. explain the origin of mechanical vibrations and basic principles of their abatement
  3. calculate measures for indoor and outdoor noise protection
  4. operate instruments for measuring noise and vibration levels
  5. use noise maps and other indicators for estimating imission levels and evaluating soundscapes
  6. apply noise and vibration protection laws and regulations for determining their influence on people

Forms of Teaching

Lectures

Lectures are held in 2 terms, 3 hours per week. Short exams and solving of numerical examples will be integrated into the lectures.

Independent assignments

Individual work for selected topic from the field of the whole course

Laboratory

6 laboratory exercises will be organized, 2 hours each, that follow the contents of the lectures.

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Laboratory Exercises 0 % 20 % 0 % 0 %
Homeworks 0 % 10 % 0 % 0 %
Mid Term Exam: Written 0 % 35 % 0 %
Final Exam: Written 0 % 35 %
Exam: Written 0 % 50 %
Exam: Oral 50 %

Week by Week Schedule

  1. Noise indicators
  2. Methods of noise protection
  3. Airborne sound insulation; Impact noise sound insulation
  4. Noise barriers
  5. Noise maps
  6. Sound in tubes and ducts
  7. Measurement microphones
  8. Midterm exam
  9. Norms and regulation, Personal noise protection
  10. Advanced noise control in single channel and multi channel systems, Control systems with feedback
  11. Single degree of freedom systems, Multi degree of freedom systems
  12. Characteristics and parameters of vibration, Vibration damping methods
  13. Measurement accelerometers
  14. Hand-arm vibration; Whole-body vibration, Norms and regulation
  15. Final exam

Study Programmes

University undergraduate
Computing (study)
Free Elective Courses (5. semester)
Electrical Engineering and Information Technology (study)
Free Elective Courses (5. semester)

Literature

Domitrović, Hrvoje; Jambrošić, Kristian; Petošić, Antonio (2015.), Prijenos zvuka, Element
Tihomil Jelaković (1978.), Zvuk, sluh, arhitektonska akustika, Školska knjiga
Malcolm J. Crocker (2007.), Handbook of Noise and Vibration Control, John Wiley & Sons
David A. Bies, Colin Hansen, Carl Howard (2017.), Engineering Noise Control, Fifth Edition, CRC Press

Laboratory exercises

For students

General

ID 183413
  Winter semester
5 ECTS
L2 English Level
L1 e-Learning
45 Lectures
12 Laboratory exercises

Grading System

89 Excellent
76 Very Good
63 Good
50 Acceptable