Download E-books Acoustics for Engineers: Troy Lectures PDF

November 21, 2016 | Engineering | By admin | 0 Comments

By Jens Blauert

Blauert's and Xiang's "Acoustics for Engineers" offers the cloth for an introductory path in engineering acoustics for college kids with simple wisdom in arithmetic. within the moment, enlarged version, the instructing elements of the ebook were considerably greater. conscientiously chosen examples illustrate the applying of acoustic ideas and difficulties are supplied for training.

"Acoustics for Engineers" is designed for broad instructing on the college point. less than the suggestions of an educational instructor it truly is enough because the sole textbook for the topic. each one bankruptcy bargains with a good outlined subject and represents the cloth for a two-hour lecture. The 15 chapters exchange among extra theoretical and extra application-oriented concepts.

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2. 6 simple components of Linear, Oscillating, Acoustic platforms . . . . . . 2. 7 The Helmholtz Resonator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . thirteen 14 sixteen 17 19 22 24 25 three Electromechanic and Electroacoustic Analogies . . . . . . . . . . . . three. 1 The Electromechanic Analogies . . . . . . . . . . . . . . . . . . . . . . . . . . . . three. 2 The Electroacoustic Analogy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . three. three Levers and Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . three. four principles for Deriving Analogous electrical Circuits . . . . . . . . . . . . . . three. five Synopsis of electrical Analogies of easy Oscillators . . . . . . . . . three. 6 Circuit constancy, Impedance constancy and Duality . . . . . . . . . . . . three. 7 Examples of Mechanic and Acoustic Oscillators . . . . . . . . . . . . . 27 28 29 29 31 33 33 34 four Electromechanic and Electroacoustic Transduction . . . . . . . . . four. 1 Electromechanic Couplers as - or Three-Port components . . . four. 2 The Carbon Microphone – A managed Coupler . . . . . . . . . . . . four. three basic Equations of Electroacoustic Transducers . . . . . . . 37 38 39 forty VIII Contents four. four four. five four. 6 four. 7 four. eight Reversibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coupling of Electroacoustic Transducers to the Sound box . . . strain and Pressure-Gradient Receivers . . . . . . . . . . . . . . . . . . extra Directional features . . . . . . . . . . . . . . . . . . . . . . . . Absolute Calibration of Transducers . . . . . . . . . . . . . . . . . . . . . . . forty three forty four forty six forty nine fifty two five Magnetic-Field Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . five. 1 The Magnetodynamic Transduction precept . . . . . . . . . . . . . . . five. 2 Magnetodynamic Sound Emitters and Receivers . . . . . . . . . . . . . five. three The Electromagnetic Transduction precept . . . . . . . . . . . . . . . . five. four Electromagnetic Sound Emitters and Receivers . . . . . . . . . . . . . . five. five The Magnetostrictive Transduction precept . . . . . . . . . . . . . . . . five. 6 Magnetostrictive Sound Transmitters and Receivers . . . . . . . . . . fifty five fifty seven fifty nine sixty five sixty seven sixty eight sixty nine 6 Electric-Field Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. 1 The Piezoelectric Transduction precept . . . . . . . . . . . . . . . . . . . 6. 2 Piezoelectric Sound Emitters and Receivers . . . . . . . . . . . . . . . . . 6. three The Electrostrictive Transduction precept . . . . . . . . . . . . . . . . . 6. four Electrostrictive Sound Emitters and Receivers . . . . . . . . . . . . . . . 6. five The Dielectric Transduction precept . . . . . . . . . . . . . . . . . . . . . . 6. 6 Dielectric Sound Emitters and Receivers . . . . . . . . . . . . . . . . . . . . 6. 7 additional Transducer and Coupler ideas . . . . . . . . . . . . . . . . . seventy one seventy one seventy four seventy eight seventy nine eighty eighty one eighty five 7 The Wave Equation in Fluids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. 1 Derivation of the One-Dimensional Wave Equation . . . . . . . . . . 7. 2 three-d Wave Equation in Cartesian Coordinates . . 7. three ideas of the Wave Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. four box Impedance and tool delivery in airplane Waves . . . . . . . 7. five Transmission-Line Equations and Reflectance . . . . . . . . . . . . . . . 7. 6 The Acoustic Measuring Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 89 ninety four ninety five ninety six ninety seven ninety nine eight Horns and Stepped Ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 eight. 1 Webster’s Differential Equation – the Horn Equation . . . . . . . . . 104 eight. 2 Conical Horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . one zero five eight. three Exponential Horns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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