functional generator
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2020 ◽  
Vol 17 (4) ◽  
pp. 1812-1817
Author(s):  
F. Fredrick Gnanaraj ◽  
K. R. Vijaya Kumar

The main objective of this work is to analyze the active vibration control using smart sensors and actuators in a laminated E-Glass/epoxy cyanate composite beam. The cantilevered composite beam has piezoelectric ceramic patches as smart sensors and actuators. Hand layup technique for vibration suppression is done on the fabricated E-Glass/Epoxy-cyanate composite laminated beam. Experimental modal testing is performed to achieve vibration suppression on the flexible composite beam bonded with seven circular type piezoelectric actuator elements and seven circular type sensor elements. The complete vibration suppression utilizes a data acquisition system, a real-time control system, and a functional generator, in addition to the composite beam with PZT sensor and actuator. The data acquisition hardware consists of model NI 9233 (4 channel +5 V 24 Bit IEPE Analog input I2VA 1-to earth ground).


Optik ◽  
2018 ◽  
Vol 172 ◽  
pp. 203-219 ◽  
Author(s):  
Roman Sotner ◽  
Jan Jerabek ◽  
Norbert Herencsar

2017 ◽  
Vol 32 (08) ◽  
pp. 1750048 ◽  
Author(s):  
Antonio Accioly ◽  
Gilson Correia ◽  
Gustavo P. de Brito ◽  
José de Almeida ◽  
Wallace Herdy

Simple prescriptions for computing the D-dimensional classical potential related to electromagnetic and gravitational models, based on the functional generator, are built out. These recipes are employed afterward as a support for probing the premise that renormalizable higher-order systems have a finite classical potential at the origin. It is also shown that the opposite of the conjecture above is not true. In other words, if a higher-order model is renormalizable, it is necessarily endowed with a finite classical potential at the origin, but the reverse of this statement is untrue. The systems used to check the conjecture were D-dimensional fourth-order Lee–Wick electrodynamics, and the D-dimensional fourth- and sixth-order gravity models. A special attention is devoted to New Massive Gravity (NMG) since it was the analysis of this model that inspired our surmise. In particular, we made use of our premise to resolve trivially the issue of the renormalizability of NMG, which was initially considered to be renormalizable, but it was shown some years later to be non-renormalizable. We remark that our analysis is restricted to local models in which the propagator has simple and real poles.


2015 ◽  
Vol 46 (2) ◽  
pp. 143-152 ◽  
Author(s):  
Roman Sotner ◽  
Jan Jerabek ◽  
Norbert Herencsar ◽  
Tomas Dostal ◽  
Kamil Vrba

2004 ◽  
Vol 47 (3) ◽  
pp. 350-351
Author(s):  
V. A. Chulkov
Keyword(s):  

2003 ◽  
Vol 16 (1) ◽  
pp. 93-102
Author(s):  
Rumen Arnaudov ◽  
Ivo Dochev

This paper presents a functional generator controlled by Internet. We describe a computer-system architecture, a block diagram of generator and working algorithms. The remote control is realized by computer networks and using the TCP/IP protocols. For that purpose is used "Customer-Server" architecture. The software algorithms is based on Linux operating system Apache web server, MySql database, HTML and PHP languages.


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