FDS of Base Input Acceleration PSD via the Dirlik Method

Version 1.2 (9.71 KB) by Tom Irvine
The script calculates the fatigue Damage Spectrum (FDS) of a base input PSD using the Dirlik method.
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Updated 2 Apr 2023

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fds_sdof_response_Dirlik_damage.m is the main function. The other scripts are supporting functions.
The script calculates the response PSD for an SDOF system subjected a base input acceleration PSD using a textbook power transmissibilty function. The relative fatigue damage of the response PSD is then calculated via the semi-empirical Dirlik method for each natural frequency of interest.

Cite As

Tom Irvine (2026). FDS of Base Input Acceleration PSD via the Dirlik Method (https://www.mathworks.com/matlabcentral/fileexchange/127264-fds-of-base-input-acceleration-psd-via-the-dirlik-method), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2022a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.2

Added missing function/
1.1

Replaced some functions
1.0.0