System identification of a gyroscopic rotor throughout rotor-model-free control using the frequency domain LMS

被引：3

作者：

Jungblut, Jens ^{[1
]}

Fischer, Christian ^{[1
]}

Rinderknecht, Stephan ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Otto Berndt Str 2, D-64287 Darmstadt, Germany

来源：

IFAC PAPERSONLINE | 2022年 / 55卷 / 25期

关键词：

Piezoelectric Bearing; Rotor Dynamics; System Identification; ACTIVE NOISE-CONTROL;

D O I：

10.1016/j.ifacol.2022.09.350

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A gyroscopic rotor is controlled and studied. A rotor-model-free control which is based on the transform domain least mean squares algorithm is implemented. An algorithm is proposed which compensates the delay of the transformation for quasi-periodic signals. Experiments show that this algorithm has a positive effect on the first resonance and that it is sufficient to compute the transformation only once per revolution. The rotor-model-free control is then used to excite the system during operation for its identification. A non-parametric model is estimated using two run-outs, one with and one without adaptive feedforward control. Transient phenomena occur after passing the first lightly damped resonance causing a distortion in the estimation. This is remedied by fitting a modal model to the estimation. Copyright (C) 2022 The Authors.

引用

页码：217 / 222

页数：6

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