Active Vibration Control Test of High-speed Compound Unmanned Rotorcraft Using Scaled Airframe Model

2021 ◽  
Vol 31 (6) ◽  
pp. 642-653
Author(s):  
Sung-Boo Hong ◽  
Jae-Sang Park
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
Active Vibration Control ◽  
Control Test ◽  
Active Vibration

Application of a Bandpass Filter for the Active Vibration Control of High-Speed Rotors

2019 ◽  
Vol 24 (3) ◽  
pp. 608-615 ◽  
Author(s):  
Miroslav Pawlenka ◽  
Miroslav Mahdal ◽  
Jiri Tuma ◽  
Adam Burecek
Keyword(s):  
Control System ◽  
Vibration Control ◽  
High Speed ◽  
Control Algorithm ◽  
Bandpass Filter ◽  
Active Vibration Control ◽  
Orthogonal Direction ◽  
Sliding Bearings ◽  
Active Vibration ◽  
Proportional Controller

This study concerns the active vibration control of journal bearings, which are also known as sliding bearings. The control system contains a non-rotating loose bushing, the position of which is controlled by piezoelectric actuators. For governing the respective orthogonal direction of the journal motion, the control algorithm realizes a proportional controller in parallel with a bandpass filter of the IIR type. The bandpass filter is of the second order and its centre frequency is self-tuned to be the same as the whirl frequency that results from the instability of the bearing journal due to the oil film. The objective of active vibration control is to achieve the highest operational speed of the journal bearing at which the motion of the rotor is stable. The control algorithm for the active vibration control is implemented in Simulink and realized in a dSPACE control system.

Semi-Active Vibration Control of High-Speed Elevators Using the LQR Method

2002 ◽  
Vol 2002.77 (0) ◽  
pp. _12-23_-_12-24_
Author(s):  
Takenori KUBO ◽  
Hiroshi MATSUHISA ◽  
Kenji UTSUNOMIYA
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
Active Vibration Control ◽  
Active Vibration

Hardware Design for Active Vibration Isolation Controller

2011 ◽  
Vol 211-212 ◽  
pp. 1061-1065
Author(s):  
Qiang Hong Zeng ◽  
Shi Jian Zhu ◽  
Jing Jun Lou ◽  
Shui Qing Xie
Keyword(s):  
Control System ◽  
Vibration Control ◽  
Active Control ◽  
High Speed ◽  
Vibration Isolation ◽  
Active Vibration Control ◽  
Signal Acquisition ◽  
Acceleration Sensor ◽  
Series Acceleration ◽  
Active Vibration

The active vibration control system are described in this paper, and the controller was designed for the active control system, the controller is based on ARM Cortex M3 microcontroller core, ICP series acceleration sensor is use for signal acquisition module, the A / D converter module was designed based on ADS1158 chip, the D/ A converter module was designed based on DAC8564 chip. The controller has the characteristics of high speed and versatility.

scholarly journals Active vibration control of mechanical servo high speed fine-blanking press

2020 ◽  
Author(s):  
Yan xiong Liu ◽  
Yuwen Shu ◽  
Wen tao Hu ◽  
Xin hao Zhao ◽  
Zhi cheng Xu
Keyword(s):  
Vibration Control ◽  
Mechanical Model ◽  
High Speed ◽  
Active Vibration Control ◽  
Vibration Measurement ◽  
Machining Accuracy ◽  
Forming Process ◽  
Fine Blanking ◽  
Active Vibration ◽  
Blanking Process

Abstract The fine-blanking process as an advanced sheet metal forming process has been widely applied in the industrial area. However, special designed equipment is required for this process. In this paper, a novel mechanical servo high speed fine-blanking press with the capacity of 3200kN is proposed, and the vibration control for this machine is researched to achieve the requirement of fine-blanked parts of high dimensional accuracy, since the vibration of the fine-blanking machine will cause the machining displacement error and reduce the machining accuracy. The self-adaptive feed forward control is used to simulate the active vibration control of the mechanical fine-blanking machine. The vibration control principle of the fine-blanking machine is described and the control algorithm is established. At the same time, the vibration mechanical model of the fine-blanking machine as the controlled object is established, and the parameters of the excitation input and the mechanical model are obtained by the fine-blanking finite element simulation and the experiments of the vibration measurement of the press. Finally, the numerical simulation and analysis of active vibration control based on Matlab are carried out. The results show that the control effect is good, and the vibration response is effectively reduced.

scholarly journals Active Vibration Control of a Mechanical Servo High-speed Fine-Blanking Press

2021 ◽  
Vol 67 (9) ◽  
pp. 445-457
Author(s):  
Yanxiong Liu ◽  
Yuwen Shu ◽  
Wentao Hu ◽  
Xinhao Zhao ◽  
Zhicheng Xu
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
Active Vibration Control ◽  
Vibration Measurement ◽  
Machining Accuracy ◽  
Control Effect ◽  
Forming Process ◽  
Fine Blanking ◽  
Active Vibration ◽  
Blanking Process

The fine-blanking process as an advanced sheet metal forming process has been widely applied in industry. However, specially designed equipment is required for this process. In this paper, a novel mechanical servo high-speed fine-blanking press with the capacity of 3200 kN is proposed, and the vibration control for this machine is researched to achieve the requirement of fine-blanked parts of high dimensional accuracy, since the vibration of the fine-blanking machine will cause the machining displacement error and reduce the machining accuracy. Self-adaptive feed-forward control is used to simulate the active vibration control of the mechanical fine-blanking machine. The vibration control principle of the fine-blanking machine is described, and the control algorithm is established. At the same time, the mechanical vibration model of the fine-blanking machine as the controlled object is established, and the parameters of the excitation input and the mechanical model are obtained by the fine-blanking finite element simulation and the experiments of the vibration measurement of the press. Finally, the numerical simulation and analysis of active vibration control based on MATLAB are carried out. The results show that the control effect is good, and the vibration response is effectively reduced, thus greatly increasing the processing accuracy, saving a significant amount of energy, and reducing the energy consumption and defective rate.

Active vibration control for high speed train bogies

2004 ◽  
Vol 14 (1) ◽  
pp. 1-18 ◽  
Author(s):  
Alexander Peiffer ◽  
Stefan Storm ◽  
Arno Röder ◽  
Rudolf Maier ◽  
Paul-Gerhard Frank
Keyword(s):  
Vibration Control ◽  
High Speed ◽  
Active Vibration Control ◽  
High Speed Train ◽  
Active Vibration
Sign in / Sign up

Export Citation Format

Share Document