Optimal PPF controller for multimodal vibration suppression

Title:

Optimal PPF controller for multimodal vibration suppression

Creator:

Fenik, Štefan and Starek, Ladislav

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4977ad6b-d378-4f2d-bafa-f96c7df87be1
uuid:4977ad6b-d378-4f2d-bafa-f96c7df87be1

Subject:

vibration, suppression, PPF control, root-locus method, optimization, and piezoactuator

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

Positive Position Feedback (PPF) is one of the most attractive vibration control method due to its stability and ease of implementation. On the other hand, low robustness makes the PPF design more complicated in multimodal control case. It is known that a little change in optimal parameters setup, especially the change in controller frequency, can strongly degrade the control effort. Thus knowing a good approximation of optimal PPF parameters can be very helpful in practical implementations and simplified analytical relations between optimal parameters and modal properties of the structure are inevitable for efficient control design. In this paper derivation of such relations is introduced, based on simplified transfer function of controlled structure. Furthermore influence of the parallel PPF controllers in multimodal vibration suppression is analyzed and formulae for optimal parameters updating are suggested. Optimal multimodal PPF control design is demonstrated on experimental example of vibration suppression of beam structure. and Obsahuje seznam literatury

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

153-173

Source:

Engineering mechanics: international journal for theoretical and applied mechanics | 2008 Volume:15 | Number:3

Harvested from:

CDK

Metadata only:

false