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Bounding the frequency response of structures with variable levels of random uncertainty without the need for Monte Carlo simulation

posted on 2023-06-08, 16:17 authored by T Cheepsomsong, Julian DunneJulian Dunne
A method is presented for predicting the amplitude bounds associated with the dynamic response of engineering structures with varying levels of parameter uncertainty. In particular, a novel SEA Extreme-Value-based bounding method is discussed and tested across the frequency range on a non-simple built-up structure with high and low-level random uncertainties. This method does not use expensive Monte-Carlo simulation and is therefore computationally very efficient. The paper shows that for a built-up structure, with both low and high-level uncertainty in a single parameter, the proposed SEA-EV-based prediction method compares extremely well at high frequency with FE-based Monte-Carlo simulation.


Publication status

  • Published

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  • Published version

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Presentation Type

  • paper

Event name

20th International Conference on Sound and Vibration

Event location

Bangkok, Thailand

Event type


Event date

7th-11th July 2013

Department affiliated with

  • Engineering and Design Publications

Full text available

  • No

Peer reviewed?

  • Yes

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