Vibration Control of Two-mass System with Low Inertia Ratio Considering Practical Use

1997 ◽  
Vol 117 (11) ◽  
pp. 1593-1599
Author(s):  
Shigeo Morimoto ◽  
Akira Hamamoto ◽  
Yoji Takeda
Keyword(s):  
Vibration Control ◽  
Mass System

Vibration control and feedback control of crane rope-and-mass system

2016 ◽  
Vol 2016 (0) ◽  
pp. 426
Author(s):  
Xiaolan ZHENG ◽  
Muneharu SAIGO ◽  
Hiroyuki IWAMOTO
Keyword(s):  
Feedback Control ◽  
Vibration Control ◽  
Mass System

Realization of Resonance of a Diaphragm at Any Desired Frequency

2015 ◽  
Vol 34 (1) ◽  
pp. 29-34
Author(s):  
Y. Zhang ◽  
L. Huang
Keyword(s):  
Mechanical Property ◽  
Resonance Frequency ◽  
Vibration Control ◽  
Mechanical System ◽  
Electromechanical Coupling ◽  
Mass System ◽  
Low Frequencies ◽  
Control Applications ◽  
Noise And Vibration ◽  
Lc Circuit

AbstractIn noise control, the reactance of a mechanical system needs to be minimized while the resistance is chosen suitably. This work illustrates the possibility of and the ease at which such design tasks may be accomplished by utilizing strong electromechanical coupling. Moving-coil loudspeaker is chosen as the vehicle of illustration and it is considered as a simple spring-mass system when operated below its first diaphragm mode. It is shown that the system mechanical property may be tuned easily by a simple R-LC circuit. In addition to the assigned resonance frequency, there can be a maximum of two other resonances. It is argued that the ability to tune the system mechanical resonance to any frequency, such as the ones at very low frequencies, can be very useful for noise and vibration control applications.

Theoretical and Experimental Investigation of Fuzzy Logic Based Active Vibration Control of Beams

2003 ◽  
Author(s):  
Manu Sharma ◽  
S. P. Singh ◽  
B. L. Sachdeva
Keyword(s):  
Fuzzy Logic ◽  
Feedback Control ◽  
Vibration Control ◽  
Fuzzy Logic Controller ◽  
Fuzzy Controller ◽  
Active Vibration Control ◽  
Test Beam ◽  
Mass System ◽  
Velocity Feedback ◽  
Active Vibration

This paper presents fuzzy logic based velocity feedback control for active vibration control of beams. The controller is first developed for a single degree of freedom spring mass system. Rule base consisting of three simple rules based on velocity is used. It is found theoretically as well as experimentally, that for the same settling time maximum applied force required by fuzzy logic controller is much less than that required by direct negative velocity feedback control. The fuzzy controller so developed is then applied for active vibration control of beams. The controller is implemented experimentally on a test beam and the results are found satisfactory. The test system consists of a cantilevered beam with piezoelectric sensor and actuator patches mounted in collocated fashion. The fuzzy logic controller is based on modal velocity of the beam. Modal velocity of the beam acts as an input to the fuzzy controller and actuation force is output from the inference engine. The issues related to design of fuzzy logic controller based on velocity are discussed.

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