CU-Boulder ASEN 5519 - Lecture (13 pages)

Previewing pages 1, 2, 3, 4 of 13 page document View the full content.
View Full Document

Lecture



Previewing pages 1, 2, 3, 4 of actual document.

View the full content.
View Full Document
View Full Document

Lecture

114 views


Pages:
13
School:
University of Colorado at Boulder
Course:
Asen 5519 - Selected Topics
Selected Topics Documents
Unformatted text preview:

13 811 Advanced Structural Dynamics and Acoustics 13 811 Lectures Instructor MW 2 30 4 00 Rm 5 233 Prof Henrik Schmidt Rm 5 226 E mail henrik mit edu Dr David Battle Rm 5 207 E mail dbattle mit edu TA Mr Hwee Min Charles Low Rm 5 007 E mail lhmc mit edu Office hours Thursday 4 5 Textbook Fourier Acoustics E G Williams Academic Press 1999 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 13 811 Spr i ng 2 0 0 4 Cl a s s Sc he dul e Da t e 29 Ma r Le c t ur e r Le c t ur e Topi c I nt r oduc t i on Ove r vi e w of Oc e a n Ac ous t i c s Cha p 2 1 2 3 Ac ous t i c wa ve e qua t i on Pl a ne wa ve s Wa ve numbe r r e pr e s e nt a t i on Ra di a t i on f r om i nf i ni t e pl a t e 2 d wa ve numbe r s pa c e Sphe r i c a l wa ve s f r om poi nt s our c e Di r e c t i vi t y f unc t i on Ra di a t i on f r om ba f f l e d r e c t a ngul a r pi s t on Ra di a t i on f r om pl a na r s our c e s 2 4 2 6 Hmwk Due Sc hmi dt 31 Ma r Sc hmi dt 5 Apr Sc hmi dt 7 Apr Sc hmi dt 12 Apr 2 7 2 8 2 11 1 2 11 5 2 11 6 2 12 2 13 Sc hmi dt 14 Apr Ra di a t i on f r om e l a s t i c pl a t e s 2 14 2 15 1 Sc hmi dt 19 Apr No c l a s s e s n a 21 Apr Qui z 26 Apr Sphe r i c a l wa ve s Sphe r i c a l ha r moni c s 6 1 6 4 Sphe r i c a l mul t i pol e r a di a t i on 6 5 6 6 Ba t t l e 28 Apr 2 Ba t t l e 3 Ma y Sc a t t e r i ng f r om Sphe r e s 6 1 Ba t t l e 5 Ma y Cyl i ndr i c a l wa ve s 4 1 4 3 3 Ba t t l e 10 Ma y He l i c a l wa ve s 4 4 Ba t t l e 12 Ma y Ra di a t i on f r om c yl i nde r s 4 5 4 7 4 Ba t t l e Text E G Williams Fourier Acoustics Academic Press 1999 Backgroud reading Section 1 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 The Acoustic Equation of Motion Perturbation 1D equation of motion Other Coordinates Equation of Motion 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 The Acoustic Wave Equation Conservation of Mass Equation of Motion Constitutive Equation Speed of Sound Pressure Wave Equation Linearly Elastic Fluid Particle Velocity Wave Equation 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Potential Wave Equations Wavefield Potentials Velocity Potential constant Displacement Potential Pressure Wave Equation Particle Velocity Wave Equation 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Solution of the Wave Equations 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Helmholtz Equation Frequency Time Fourier Transform Solution of Helmholtz Equation 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Helmholtz Equation Homogeneous Media Helmholts Equation Laplacian in Cartesian Coordinates Plane Waves k Wavefronts k r const Wavevector k kx ky kz k k c Wavevector k determines propagation direction of plane waves 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Helmholtz Equation Homogeneous Media 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Radiation of Sound The Point Source Unbounded Homogeneous Medium Simple Point Source 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Green s Function 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Green s Theorem 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2 Source in Infinite Medium Radiation Condition 13 811 ADVANCED STRUCTURAL DYNAMICS AND ACOUSTICS Lecture 2


View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Lecture and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Lecture and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?