scholarly journals Design of Zero-phase FIR Filters Through the Modeling and Analysis of A Frequency-domain Error Function

2011 ◽  
Vol 36 (7C) ◽  
pp. 451-458
Author(s):  
Joon-Hyeon Jeon
Keyword(s):  
Frequency Domain ◽  
Error Function ◽  
Fir Filters ◽  
Modeling And Analysis ◽  
Zero Phase

Frequency Domain Modeling and Analysis of DFIG Considering Power Control Loop

2021 ◽  
Author(s):  
Chuanyun Zhang ◽  
Hang Su ◽  
Maohai Wang ◽  
Lin Jia ◽  
Peng Zi ◽  
...  
Keyword(s):  
Power Control ◽  
Frequency Domain ◽  
Domain Modeling ◽  
Control Loop ◽  
Modeling And Analysis

Frequency domain synthesis of IIR digital filters by means of associated FIR filters

1977 ◽  
Vol 65 (4) ◽  
pp. 574-576
Author(s):  
M. Decina ◽  
F. Riciniello ◽  
A. Roveri
Keyword(s):  
Frequency Domain ◽  
Digital Filters ◽  
Fir Filters ◽  
Iir Digital Filters

Modeling and Analysis of Piezoelectric Energy Harvesting From Aeroelastic Vibrations Using the Doublet-Lattice Method

2010 ◽  
Vol 133 (1) ◽  
Author(s):  
Carlos De Marqui ◽  
Wander G. R. Vieira ◽  
Alper Erturk ◽  
Daniel J. Inman
Keyword(s):  
Energy Source ◽  
Energy Harvesting ◽  
Frequency Domain ◽  
Electromechanical Coupling ◽  
Lattice Method ◽  
Modeling And Analysis ◽  
Piezoelectric Energy ◽  
Doublet Lattice Method ◽  
Aeroelastic Vibrations ◽  
Air Vehicles

Multifunctional structures are pointed out as an important technology for the design of aircraft with volume, mass, and energy source limitations such as unmanned air vehicles (UAVs) and micro air vehicles (MAVs). In addition to its primary function of bearing aerodynamic loads, the wing/spar structure of an UAV or a MAV with embedded piezoceramics can provide an extra electrical energy source based on the concept of vibration energy harvesting to power small and wireless electronic components. Aeroelastic vibrations of a lifting surface can be converted into electricity using piezoelectric transduction. In this paper, frequency-domain piezoaeroelastic modeling and analysis of a cantilevered platelike wing with embedded piezoceramics is presented for energy harvesting. The electromechanical finite-element plate model is based on the thin-plate (Kirchhoff) assumptions while the unsteady aerodynamic model uses the doublet-lattice method. The electromechanical and aerodynamic models are combined to obtain the piezoaeroelastic equations, which are solved using a p-k scheme that accounts for the electromechanical coupling. The evolution of the aerodynamic damping and the frequency of each mode are obtained with changing airflow speed for a given electrical circuit. Expressions for piezoaeroelastically coupled frequency response functions (voltage, current, and electrical power as well the vibratory motion) are also defined by combining flow excitation with harmonic base excitation. Hence, piezoaeroelastic evolution can be investigated in frequency domain for different airflow speeds and electrical boundary conditions.

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