《課程名稱聲學基礎(chǔ)》課程教學大綱（本科）

1、課程名稱：聲學基礎(chǔ)Introduction to Acoustics課程代碼：24410030學分：2學時：32 （其中：課堂教學學時：32上機學時：課程實踐學時：）先修課程：高等數(shù)學、大學物理、理論力學、振動力學、彈性力學 適用專業(yè)：工程力學專業(yè)教材：1. Heinrich Kuttruff, Acoustics-an introduction, English edition published 2007 by Taylor & Francis.2.聲學基礎(chǔ)，杜功煥，朱哲民，龔秀芬.大學出版社，2012,第三版。一、課程性質(zhì)與教學目標（一）課程性質(zhì)Acoustics is the scie

2、nce of sound, particularly its production, transmission, and effects. The applications of acoustics can be broken down into four main categories: Earth Sciences, Engineering, Life Sciences, and the Arts. Within Earth Sciences, acoustics is used in such applications as the development and refinement

3、of underwater detection devices, the measurement of seismic waves and sound levels in the atmosphere. Engineering applications of acoustics include Noise Control, Electro-Acoustics, Sonic and Ultrasonic Engineering systems, non-destructive material testing, shock and vibrations of mechanical systems

4、, and sound quality design of products. Life Sciences use Acoustics in hearing, speech production, bioacoustics, and psychoacoustics. In the Arts, Acoustics is involved in musical instruments, room acoustics, and communications. Hence, studying this course will greatly help students in their future

5、carrier.（二）教學目標（需包括知識、能力與素質(zhì)方面的內(nèi)容）The main course objective is introducing the following topics to the students:What is sound and acousticsWave equationPlane and spherical wavesAttenuation and sound radiationSound reflection, refraction, diffraction and scatteringSound waves in isotropic solidsUltras

6、oundHelp the students understand the applications of the acoustics knowledge in practical engineering.（三）課程目標與專業(yè)畢業(yè)要求指標點的對應關(guān)系本課程支撐專業(yè)培養(yǎng)計劃中畢業(yè)要求指標點4、5、6：.畢業(yè)要求4：掌握力學基礎(chǔ)知識和基本理論。掌握理論力學、材料力學、彈性力學、振動力學， 流體力學，計算力學和實驗力學的理論體系，初步利用力學思維對自然和工程問題進行機理性 和定量化的建模與描述，明確各種力學理論的適用范圍與局限性。（畢業(yè)要求4）.畢業(yè)要求5：掌握基本的力學實驗與數(shù)值計算技能。前者包括理

7、論力學及材料力學等基礎(chǔ)力學實 驗，結(jié)構(gòu)健康監(jiān)測和微納米測試等方面的最新實驗技術(shù)，后者要求具有使用數(shù)值模擬軟件或編 程計算典型工程力學案例的能力。（畢業(yè)要求5）.畢業(yè)要求6：初步掌握力學研究的基本方法和手段，具有初步的工程實踐能力，初步具備發(fā)現(xiàn)、 提出、分析和解決與力學有關(guān)的工程技術(shù)問題的能力。（畢業(yè)要求6）程目標畢業(yè)要求磊課程目標1課程目標2畢業(yè)要求3畢業(yè)要求4畢業(yè)要求5注：課程目標與畢業(yè)要求指標點對接的單元格中可輸入也可標注“H、M、L-oII、Course content and teaching requirements (Write for each chapter)Introduct

8、ionCourse contentsDefinition of sound Definition of acousticsTeaching requirementsIn this chapter a lot of examples including; videos are necessary to teach the students the definition of sound and acousticsKey points and difficultiesKey pointsDefinition of sound and acousticsDifficultiesSince the s

9、ound is an invisible phenomenon, the students may face difficulties in understanding the definition of sound and acousticsSome facts on mechanical vibrationsCourse contentsA few examplesDefinition of frequency, wave length, resonance and impedanceTeaching requirementsIn this chapter, mechanical vibr

10、ations must be reviewed for the students which can help the students to understand the following chapters.Key points and difficultiesKey pointsDefinition of frequency, wave length, resonance and impedanceDifficultiesSince the students have studied this chapter in previous semesters, they may not fac

11、e any difficulties in this chapter.Acoustic variables and basic relationsCourse contentsDefinition of acoustic variablesIntroducing basic relations in acousticsWave equationsIntensity and energy density of sound waves in fluidsDefinition of sound pressure levelTeaching requirementsIn this chapter, f

12、irstly acoustic variables must be introduced. Then basic relations in acoustics can be taught which will be used for developing the wave equations.Key points and difficultiesKey pointsDefinition of acoustic variables, basic relations in acoustics and wave equationsDifficultiesDeveloping wave equatio

13、ns may be difficult and complicated for studentsPlane waves attenuation(X) Course contentsDefinition of plane wavesAttenuation of soundTeaching requirementsIn this chapter, solution of wave equation will be presented and the plane waves will be introduced. Moreover, the definition of attenuation of

14、sound will be presented in this chapter.Key points and difficultiesKey pointsPlane waves, definition of plane wave and attenuation of soundDifficultiesSolution of wave equation may be complicated for studentsSpherical wave and sound radiationCourse contentsDefinition of spherical wavesSound radiatio

15、nThe point sourceThe Doppler effectTeaching requirementsIn this chapter, firstly the solution of wave equation for spherical waves will be presented then sound radiation will be taught. Finally, the point source and Doppler effect will be introduced.Key points and difficultiesKey pointsSpherical wav

16、es, sound radiation, the point source and the Doppler effectDifficultiesSolution of wave equation for spherical waves may be complicated for studentsReflectiony Refractiony Diffractiony ScatteringCourse contentsAngels of reflection and refractionSound propagation in atmosphereReflection factor and a

17、bsorption coefficientDefinition of diffraction and scatteringTeaching requirementsIn this chapter, firstly the angels of reflection and refraction will be introduced. Then sound propagation in atmosphere will presented. Finally, reflection factor, absorption coefficient, diffraction and scattering p

18、henomenon will be introduced.Key points and difficultiesKey pointsReflection, Refraction, Diffraction, ScatteringDifficultiesSound propagation in atmosphere may be complicated for students.Sound waves in isotropic solidsCourse contentsSound waves in unbounded solidsReflection and refraction, Rayleig

19、h waveWaves in plates and barsTeaching requirementsIn this chapter, different type of sound waves in isotropic solids will be presented.Key points and difficultiesKey pointsSound waves in plates and bars, Rayleigh waveDifficultiesThe definition of Rayleigh wave may be complicated for the students.Ul

20、trasoundCourse contentsGeneral remarks on ultrasoundGeneration and detection of ultrasoundDiagnostic applications of ultrasoundTeaching requirementsIn this chapter, general remarks and the application of ultrasound will be presented.Key points and difficultiesKey pointsUltrasound characteristics and

21、 applicationsDifficultiesGeneration and detection of ultrasound may be complicated for students.Ill、Allocation of teaching hours and teaching methodsChapter (Fill in order)Teaching form and time assignmentMain teaching methodsCourse objectives supportedLectureExperimentComputer classPracticeSubtotal

22、Chapter 144Lecture1、2Chapter 222Lecture1、2Chapter 344Lecture1、2Chapter 433Lecture1、2Chapter 533Lecture1、2Chapter 655Lecture1、2Chapter 755Lecture1、2Chapter 866Lecture1、2total3232LectureNote: The main teaching methods include lecture, discussion, demonstration, research-based teaching methods (based on problems, projects, cases and other teachi