Suppression of Harmonic Vibration in AMB-Rotor Systems Using Double-Input Adaptive Frequency Estimator

2021 ◽  
pp. 1-1
Author(s):  
Jinlei Li ◽  
Gang Liu ◽  
Peiling Cui ◽  
Shiqiang Zheng ◽  
Qi Chen
Keyword(s):  
Harmonic Vibration ◽  
Rotor Systems ◽  
Frequency Estimator

Suppression of Imbalance Vibration in AMB-Rotor Systems Using Adaptive Frequency Estimator

2015 ◽  
Vol 62 (12) ◽  
pp. 7696-7705 ◽  
Author(s):  
Qi Chen ◽  
Gang Liu ◽  
Bangcheng Han
Keyword(s):  
Rotor Systems ◽  
Frequency Estimator

scholarly journals Field Balancing and Harmonic Vibration Suppression in Rigid AMB-Rotor Systems with Rotor Imbalances and Sensor Runout

Sensors ◽  
2015 ◽  
Vol 15 (9) ◽  
pp. 21876-21897 ◽  
Author(s):  
Xiangbo Xu ◽  
Shao Chen
Keyword(s):  
Vibration Suppression ◽  
Harmonic Vibration ◽  
Rotor Systems

Reduction of structural vibrations with the piezoelectric stacks ring

2020 ◽  
Vol 64 (1-4) ◽  
pp. 729-736
Author(s):  
Jincheng He ◽  
Xing Tan ◽  
Wang Tao ◽  
Xinhai Wu ◽  
Huan He ◽  
...  
Keyword(s):  
Vibration Control ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Structural Vibrations ◽  
Rotor Systems ◽  
Fea Model ◽  
Piezoelectric Stacks ◽  
Shunt Damping ◽  
Reduction Effect ◽  
Euler Bernoulli Beam

It is known that piezoelectric material shunted with external circuits can convert mechanical energy to electrical energy, which is so called piezoelectric shunt damping technology. In this paper, a piezoelectric stacks ring (PSR) is designed for vibration control of beams and rotor systems. A relative simple electromechanical model of an Euler Bernoulli beam supported by two piezoelectric stacks shunted with resonant RL circuits is established. The equation of motion of such simplified system has been derived using Hamilton’s principle. A more realistic FEA model is developed. The numerical analysis is carried out using COMSOL® and the simulation results show a significant reduction of vibration amplitude at the specific natural frequencies. Using finite element method, the influence of circuit parameters on lateral vibration control is discussed. A preliminary experiment of a prototype PSR verifies the PSR’s vibration reduction effect.

Effects of Cyclic Pitch on Time Delayed Dynamics in Coaxial Rotor Systems

2021 ◽  
Author(s):  
Ethan S. Genter ◽  
Cory A. Seidel ◽  
David A. Peters
Keyword(s):  
Rotor Systems ◽  
Coaxial Rotor

Intrusive Stochastic Galerkin Method Applied to Rotor Systems

2019 ◽  
Author(s):  
Paulo Henrique Gonzaga ◽  
Helio Fiori de Castro
Keyword(s):  
Galerkin Method ◽  
Rotor Systems ◽  
Stochastic Galerkin Method ◽  
Stochastic Galerkin

A Modified Approach for Torsional Vibration Analysis of Some Rotor Systems Using Holzer and Matlab GUI Techniques

2019 ◽  
Vol 19 (2) ◽  
pp. 18-26
Author(s):  
Ameen Ahmed Nassar ◽  
Duna Tariq Yaseen
Keyword(s):  
Torsional Vibration ◽  
Vibration Analysis ◽  
Rotor Systems

ACCURACY RATING MEASUREMENT OF VIBRATION ELECTROMECHANICAL DEVICES

2019 ◽  
Vol 1 (7) ◽  
pp. 42-45
Author(s):  
V. A. Golubkov ◽  
V. F. Shishlakov ◽  
A. G. Fedorenko ◽  
E. Yu. Vataeva
Keyword(s):  
Technical Condition ◽  
Rotor System ◽  
Vibration Measurement ◽  
Random Errors ◽  
Mass Ratio ◽  
Signal Flow Graph ◽  
Bond Graphs ◽  
Rotor Systems ◽  
Electromechanical Devices ◽  
Main Components

Electromechanical devices consist mainly of rotor systems. Vibration is the result of the interaction of the elements of the rotor system and is largely determined by the accuracy of manufacturing elements at the production stage and defects arising in the process of operation. The main components of the rotor systems that affect vibration are bearings. To determine the technical condition of the bearings and the service life of the rotor system, it is necessary to accurately measure the unobservable vibrations of the rotor. The article describes the model of the channel for measuring the vibration of an electromechanical system, built using the apparatus of bond graphs. The transfer function is obtained by analyzing the signal flow graph. The systematic and random errors of vibration measurement are analyzed depending on the mass ratio between the system case and the vibration transducer for various sensor masses and attachment rigidity.

FSK detection using frequency estimator

1995 ◽  
Vol 31 (19) ◽  
pp. 1631-1632 ◽  
Author(s):  
Pooi Yuen Kam
Keyword(s):  
Frequency Estimator
Sign in / Sign up

Export Citation Format

Share Document