lect_4_6 - ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS...

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Unformatted text preview: ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS 13.811 Lecture 4 13.811 Advanced Structural Dynamics and Acoustics Acoustics Lecture 4 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS 13.811 Lecture 4 Greens Function U(t) r a Helmholts Equation for Greens Function Proof Greens Function ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS 13.811 Lecture 4 Greens Function Spectral Representations Cylindrical Coordinates Normalized Pressure p(1m) = 1 Radiating Spectrum Far Field Directivity Function Simple Point Source 1 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS 13.811 Lecture 4 Greens Function Spectral Representations Cartesian Coordinates Far Field Directivity Function Normalized Pressure p(1m) = 1 Ewald Sphere 1 Simple Point Source ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS 13.811 Lecture 4 Directivity Function Lloyd-Mirror Pattern Directivity Maxima and Minima Directivity Function ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS 13.811 Lecture 4 Directivity Function Rectangular Baffled Piston L x L y x y z sinc (k L/2) Directivity Function - Definition Fourier Transform Radiated Field x ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS...
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lect_4_6 - ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS...

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