A Novel Fuzzy-PID HFFT Controller to Advance on the Dynamic Characteristics

Xiong Xin Hu

doi:10.4028/www.scientific.net/AMM.43.242

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 43A Novel Fuzzy-PID HFFT Controller to Advance on...

A Novel Fuzzy-PID HFFT Controller to Advance on the Dynamic Characteristics

Abstract:

Structural components are subjected to high-frequency vibration. But today, the fatigue tester is required to provide higher precision, robust system performance and more powerful functionality because of the increasing arduousness of industrial material selection. The novel fuzzy-PID HFFT (High frequency fatigue tester) controller advances on the static/dynamic load accuracy, the running stability, the resonant frequency seeking ability, and the frequency stability. Firstly the HFFT mechanical system model is introduced. Secondly the HFFT controller is developed, which includes the static/dynamic load control loop and the frequency locked loop. Finally some experimental data in PLG-100 are shown. Compared to the conventional PID system, the fuzzy-PID tester’s accuracy is higher, and the load/frequency control loops possess the premium dynamic characteristics.

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Periodical:

Applied Mechanics and Materials (Volume 43)

Pages:

242-246

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.43.242

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Online since:

December 2010

Authors:

Xiong Xin Hu

Keywords:

Dynamic Characteristic, Fuzzy PID, HFFT

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