units

MEC4444

Faculty of Engineering

Undergraduate - Unit

This unit entry is for students who completed this unit in 2013 only. For students planning to study the unit, please refer to the unit indexes in the the current edition of the Handbook. If you have any queries contact the managing faculty for your course or area of study.

print version

6 points, SCA Band 2, 0.125 EFTSL

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LevelUndergraduate
FacultyFaculty of Engineering
Organisational UnitDepartment of Mechanical and Aerospace Engineering
OfferedSunway First semester 2013 (Day)
Clayton Second semester 2013 (Day)
Coordinator(s)W K Chiu (Clayton); Edwin Sim (Sunway)

Synopsis

Fundamentals of sound and sound propagation, wave equation, Helmholtz equation, absorption, impedance and intensity, silencers. Transmission from one medium to another, applications and optimisation. Transmission through walls, mass law, coincidence and resonance. Sound transmission in the atmosphere, inverse square law, excess attenuation. Radiation of sound, directivity. Sound in enclosed spaces. Noise sources, noise reduction techniques, noise legislation and regulation, acceptable noise levels, hearing conservation, measurement and analysis of noise, design for low noise.

Assessment

Examination (2 hours): 70%
Assignments and tutorials: 25%
Laboratory: 5%

Chief examiner(s)

Contact hours

22 lecture hours plus 22 hours of practice classes and laboratory classes

Prerequisites