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Course Catalog 2013-2014
EDE-34206 Machine Acoustics and Noise Control, 5 cr |
Person responsible
Veli-Matti Järvenpää, Lihong Yuan
Lessons
| Study type | P1 | P2 | P3 | P4 | Summer | Implementations | Lecture times and places |
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Requirements
Exercises,homework assignments, laboratory measurements, exam.
Completion parts must belong to the same implementation
Learning Outcomes
After completing the course the student understands the basic principles of machine acoustics and noise control and can apply them in the profession of a mechanical engineer. The student understands how sound propagates in different environments such as rooms, ducts or open air. The student understands how sound is generated and what type of sound different sources produce. The student will be able to apply techniques of noise insulation and attenuation. The student will be familiar with the basic equipment of sound measurement and measuring techniques.
Content
| Content | Core content | Complementary knowledge | Specialist knowledge |
| 1. | Basics of technical acoustics: Wave equation and its solution. Reflection, transmission, absorption, diffraction, refraction. Sound sources, describing real sound sources using elementary sources. Duct acoustics. Room acoustics. | Hearing. Influence of noise on man. | Computational acoustics. |
| 2. | Noise insulation and attenuation methods: Insulation solutions, resonators, absorption materials, mufflers and silecers. | End corrections. | |
| 3. | Sound measurement techniques and equipment: Basic equipment and measuring techniques, frequency analysis. Measurement of sound power. | Reverberation time measurement. Directivity measurement. | Intensity measurement. |
| 4. | Noise control design examples. | Conveyors, machine tools, impact mechanisms, hydraulic noise, fans, pumps |
Instructions for students on how to achieve the learning outcomes
The grade is based on points achieved in the exam and exercises. Good achievements in the homework assignments increase the exam score, equivalent to maximum one grade. By mastering the core content satisfactorily, the student receives the grade 3. For obtaining the grade 4, the student must also understand the complementary knowledge. For the grade 5 the student must master the core content well and in addition understand the complementary knowledge.
Assessment scale:
Numerical evaluation scale (1-5) will be used on the course
Partial passing:
Study material
| Type | Name | Author | ISBN | URL | Edition, availability, ... | Examination material | Language |
| Book | Foundations of engineering acoustics | Frank Fahy | 0122476654 | No | English | ||
| Book | Sound and Vibration | HP Wallin et al. | 91-7170-434-5 | TTY:n kirjakaupassa | Yes | English |
Prerequisite relations (Requires logging in to POP)
Correspondence of content
| Course | Corresponds course | Description |
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More precise information per implementation
| Implementation | Description | Methods of instruction | Implementation |