New method of measuring errors of active-control devices

1977 ◽  
Vol 20 (1) ◽  
pp. 87-89
Author(s):  
I. A. Khasin ◽  
M. I. �tingof
Keyword(s):  
Active Control ◽  
New Method ◽  
Control Devices

Semi-Active Control of Structural Systems Aiming to Approximate the Performance of the Targeted Active Control Law: Output Emulation Approach

2013 ◽  
Author(s):  
Kazuhiko Hiramoto ◽  
Taichi Matsuoka ◽  
Katsuaki Sunakoda
Keyword(s):  
Control System ◽  
Active Control ◽  
Variable Parameter ◽  
Control Law ◽  
Structural Systems ◽  
Control Force ◽  
Control Performance ◽  
Control Devices ◽  
Active Control System ◽  
Control Output

As a method for semi-active control of structural systems, the active-control-based method that emulates the control force of a targeted active control law by semi-active control devices has been studied. In the active-control-based method, the semi-active control devices are not necessarily able to generate the targeted active control force because of the dissipative nature of those devices. In such a situation, the meaning of the targeted active control law becomes unclear in the sense of the control performance achieved by the resulting semi-active control system. In this study, a new semi-active control strategy that approximates the control output (not the control force) of the targeted active control is proposed. The variable parameter of the semi-active control device is selected at every time instant so that the predicted control output of the semi-active control system becomes close to the corresponding predicted control output of the targeted active control as much as possible. Parameters of the targeted active control law are optimized in the premise of the above “output emulation” strategy so that the control performance of the semi-active control becomes good and the “error” of the achieved control performance between the targeted active control and the semi-active control becomes small.

Study on Water Source Emergency Protection in an Active Mode in China

2010 ◽  
Vol 113-116 ◽  
pp. 864-870 ◽  
Author(s):  
Xin Xi Zhang ◽  
Lei Ding ◽  
Ming Ming Wang ◽  
Xiao Bing Hu ◽  
Hui Ping Deng
Keyword(s):  
Water Pollution ◽  
Active Control ◽  
Water Source ◽  
Pollution Source ◽  
New Method ◽  
Emergency Protection ◽  
Active Mode ◽  
Mode Method ◽  
Control Technologies ◽  
Set Up

In order to build an emergency system for emergency accident of water pollution, the technological ideology of active emergency protection was put forward. The fixed point pollution source was taken as the study object and the diffusion model of water was used to set up the new method of water resource protection area division in active mode. Based on this new method, the water protection system with active control was built and the roles of different government departments in this system were given. The various active control technologies, such as storage tank for emergency accident, zero discharge, etc, discussed in this paper will help to water pollution control for emergency accident. The active mode method provides reference for water resources management.

scholarly journals Displacement control of isolated structures with semi-active control devices

2003 ◽  
Vol 10 (2) ◽  
pp. 77-100 ◽  
Author(s):  
Chin-Hsiung Loh ◽  
L. Y. Wu ◽  
P. Y. Lin
Keyword(s):  
Active Control ◽  
Displacement Control ◽  
Control Devices ◽  
Isolated Structures

Dynamic characteristics of active-control devices

1977 ◽  
Vol 20 (1) ◽  
pp. 73-76
Author(s):  
V. M. Mashinistov ◽  
M. P. Sobolev ◽  
V. I. Surkov ◽  
I. A. Khasin ◽  
M. I. �tingof
Keyword(s):  
Active Control ◽  
Dynamic Characteristics ◽  
Control Devices

Active control devices of violet-excited plasmonic fields

2018 ◽  
Vol 2018.9 (0) ◽  
pp. 31pm2PN122
Author(s):  
Kazune Ikeda ◽  
Nobuhiro Chizawa ◽  
Hiroaki Nishiyama
Keyword(s):  
Active Control ◽  
Control Devices

scholarly journals The active control devices of the size of products based on sapphire measuring tips with three degrees of freedom

2018 ◽  
Vol 944 ◽  
pp. 012073 ◽  
Author(s):  
E V Leun ◽  
V I Leun ◽  
V K Sysoev ◽  
K A Zanin ◽  
A V Shulepov ◽  
...  
Keyword(s):  
Active Control ◽  
Degrees Of Freedom ◽  
Control Devices ◽  
Three Degrees Of Freedom

Optimized Fuzzy Logic Controller for Semi-Active Control of Buildings Using Particle Swarm Optimization

2011 ◽  
Vol 255-260 ◽  
pp. 2505-2509 ◽  
Author(s):  
Mohammadreza Ostadali Makhmalbaf ◽  
Mohammad Amin Tutunchian ◽  
Masoud Zabihi Samani
Keyword(s):  
Fuzzy Logic ◽  
Particle Swarm Optimization ◽  
Active Control ◽  
Fuzzy Logic Controller ◽  
Particle Swarm ◽  
Engineering Structures ◽  
Swarm Optimization ◽  
Mr Dampers ◽  
Control Devices ◽  
Current Monitoring

Control devices can be used in structures to attenuate undesirable vibration on engineering structures. In order to mitigate the response of structures during the earthquakes and high intensity winds semi active control has been widely used. Semi-active control need less energy in compare with active control. So they are more reliable and more effective in mitigating the effects of earthquakes. MR damper are semi active control devices that are managed by sending external voltage supply. The inducing current monitoring of MR dampers are intelligently managed by fuzzy logic control (FLC). Validation of fuzzy logic controller that is optimized by a particle swarm optimization(PSO) is pursued in this study. Finally, optimal fuzzy logic controller is identified and validated through numerical simulation for seismic excitation. In 3-storey benchmark building, results showed that optimized fuzzy logic controller was robust and effective in reduction of both displacement and acceleration responses.

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