Vibroacoustics/Statistical Energy Analysis

four_4_f

Like Robert Frost, I have miles to go before I sleep, and all because I took the road less traveled…

This is a long-term work-in-progress…

I am including SEA in my Matlab GUI package.

The functions can be accessed via:

vibrationdata > Miscellaneous Functions I > Acoustics & Vibroacoustics

I am using textbooks by Lyon, DeJong, Wijker, Norton & Karczub, along with AutoSEA and VAPEPS manuals.

I am compiling SEA parameter equations scattered among various references into a single document.  He is my result so far: SEA_parameters.pdf

Please feel free to recommend additions or corrections.

* * *

fairing_ring_shelf_diagram

cylindrical_shell_shelf_diagram

Launch vehicle example: SEA_cylindrical_shell_shelf.pdf

Payload fairing example:  SEA_payload_fairing_acoustics.pdf

SCLV Slides

SEA_Slides, Part II

A Comparison of Vibroacoustic Coupling in Launch Vehicles between Diffuse Acoustic Field and Turbulent Boundary Layer Excitation:  SEA_DAF_TBL_power.pdf

* * *

See also:

Honeycomb Sandwich Panels

Notes on the Barrett Scaling Method

Acoustic Power Spectra

* * *

NASA References:

Compendium of Modal Densities for Structures, NASA-CR-1773

Techniques for Predicting Localized Vibratory Environments of Rocket Vehicles, Barrett, R. E.,  NASA TN D-1836

Statistical Techniques for Predicting Localized Vibratory Environments of Rocket Vehicles, Barrett, R. E.,  NASA TN D-2158

Using the Saturn V and Titan III. Vibroacoustic Databanks for Random. Vibration Criteria Development, R.C. Ferebee, Marshall Space Flight Center, Alabama
NASA-TM-2009-215902

* * *

Other References:

Cremer, Heckl, Ungar, Structure-Borne Sound: Structural Vibrations and Sound Radiation at Audio Frequencies

* * *

Tom Irvine
Email: tom@irvinemail.org

3 thoughts on “Vibroacoustics/Statistical Energy Analysis

  1. Pingback: Tom’s Conference Papers & Slide Index | Vibrationdata

  2. Pingback: Damping References | Vibrationdata

  3. Pingback: Vibrationdata Matlab Signal Analysis & Structural Dynamics Package | Vibrationdata

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