MATLAB® software is required to run the .m files in this section. File decompression software, such as Winzip® or StuffIt®, is required to open the .zip files in this section.
13.811 is split into two segments: structural dynamics for the first half of the semester and acoustics for the second half.
NOTE: Only the acoustics component is available on this site. The structural dynamics component has not yet been incorporated into OCW.
| Structural Dynamics |
| 1-13 |
Structural Dynamics |
|
|
| Acoustics |
| 14 |
Introduction
The Acoustic Wave Equation |
Schmidt |
(PDF) |
| 15 |
Helmholtz Equation
Plane Waves
Wavenumber Representation |
Schmidt |
(PDF) |
| 16 |
Radiation from Infinite Plate
2-d Wavenumber Space
Spherical Waves from Point Source |
Schmidt |
(PDF - 1.2 MB) |
| 17 |
Directivity Function
Radiation from Baffled Rectangular Piston |
Schmidt |
(PDF) |
| 18 |
Radiation from Planar Sources |
Schmidt |
(PDF)
Supporting Files (ZIP) (The ZIP file contains: circ.m, circ_arr.m, dba.m, dbp.m, rect.m, rect_arr.m, sinc.m, and wavei.m.) |
| 19 |
Radiation from Elastic Plates |
Schmidt |
(PDF)
Supporting Files (ZIP) (The ZIP file contains: plate.m.) |
| 20 |
Quiz |
|
|
| 21 |
Spherical Waves
Spherical Harmonics |
Battle |
(PDF) |
| 22 |
Spherical Multipole Radiation |
Battle |
(PDF) |
| 23 |
Scattering from Spheres |
Battle |
|
| 24 |
Cylindrical Waves |
Battle |
(PDF) |
| 25 |
Helical Waves |
Battle |
(PDF)
Supporting Files (ZIP) (This ZIP file contains: readme.txt, cylrad.m, dH_ndx.m, dhndx.m, dipole.m, djndx.m, H_n.m, hard_sphere.m, helical.m, hn.m, jn.m, lpoly.m, monopole.m, sharm.m, soft_sphere.m, Ymn.m, and yn.m.) |
| 26 |
Radiation from Cylinders |
Battle |
|
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