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Carte Multi-mode Active Vibration Control Using H∞ Optimization MIMO Positive Position Feedback Based Genetic Algorithm Zhonghui Wu

Multi-mode Active Vibration Control Using H∞ Optimization MIMO Positive Position Feedback Based Genetic Algorithm

Autor: Zhonghui Wu
Limbă: engleză
Legare: Carte broșată
Editura: Grin Publishing
Disponibilitate: În depozitul extern
Expediem în 5-8 zile
255.17 lei
Master's Thesis from the year 2014 in the subject Engineering - General, Basics, Flinders University...

Informații despre carte

Autor
Zhonghui Wu
Limbă
engleză
Legare
Carte - Carte broșată
Publicat
2017
Pagini
178
EAN
9783668270718
ISBN
3668270716
Enbook ID
15720672
Editura
Grin Publishing
Greutate
240
Dimensiuni
148 x 210 x 10

Descriere completă

Master's Thesis from the year 2014 in the subject Engineering - General, Basics, Flinders University (School of Computer Science, Engineering and Mathematics), language: English, abstract: In this thesis, experimental, analytical and numerical analysis are used for distributed parameter plate structure modeling, an infinite-dimensional and a very high-order plate mathematical transfer function model is derived based on modal analysis and numerical analysis results. A feed-through truncated plate model which minimizing the effect of truncated modes on spatial low-frequency dynamics of the system by adding a spatial zero frequency term to the truncated model is provided and numerical software MATLAB is used to compare the feed-through truncated plate model with traditional balanced reduction plate model which is used to decrease the dimensions and orders of the infinite-dimensional and very high-order plate model. Active vibration control strategy is presented for a flexible plate structure with bonded three self-sensing magnetic transducers which guarantee unconditional stability of the closed-loop system similar as collocated control system. Both multi-mode SISO and MIMO control laws based upon positive position feedback is developed for plate structure vibration suppression. The proposed multi-mode PPF controllers can be tuned to a chosen number of modes and increase the damping of the plate structure so as to minimize the chosen number of resonant responses. Stability conditions for multi-mode SISO and MIMO PPF controllers are derived to allow for a feed-through term in the model of the plate structure which is needed to ensure little perturbation in the in-bandwidth zeros of the model. A minimization criterion based on the H8 norm of the closed-loop system is solved by a genetic algorithm to derive optimal parameters of the controllers. Numerical simulation and experimental implementation are performed to verify the effectiveness of multi-mode SISO and MIMO PPF controllers' vibration suppression for the feed-through truncated plate structure.

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