scholarly journals Current-Modulation-Based On-Line Resonance Tuning Strategy for Linear Generator Drives

2021 ◽  
Vol 68 (4) ◽  
pp. 2812-2822
Author(s):  
Min Zhang ◽  
Alexey Bodrov ◽  
Roger Shuttleworth ◽  
Matteo Felice Iacchetti
Keyword(s):  
Current Modulation ◽  
Linear Generator ◽  
Resonance Tuning ◽  
Line Resonance ◽  
On Line ◽  
Tuning Strategy

Adaptive-passive structural vibration attenuation using distributed absorbers

2002 ◽  
Vol 216 (3) ◽  
pp. 223-235 ◽  
Author(s):  
N Jalili ◽  
E Esmailzadeh
Keyword(s):  
Vibration Suppression ◽  
Sufficient Conditions ◽  
Structural Vibration ◽  
Dynamic Vibration Absorber ◽  
Vibration Attenuation ◽  
Adaptive Capability ◽  
On Line ◽  
Lumped Masses ◽  
Necessary And Sufficient ◽  
Tuning Strategy

A distributed dynamic vibration absorber with adaptive capability is presented to improve vibration suppression characteristics of harmonically excited structures. A double-ended cantilever beam carrying intermediate lumped masses forms the absorber subsection. The adaptive capability is achieved through concurrent adjustment of the positions of the moving masses, along the beam, to comply with the desired optimal performance. The necessary and sufficient conditions for the existence of periodic oscillatory behaviour, along with some physical bounds placed on the absorber parameters, form a constrained optimization problem for the optimum tuning strategy. Through numerical simulations it is shown that adaptive tuning is achieved by the variation of tuning mass locations such that the first-mode natural frequency is modulated on-line. The optimally tuned absorber provides considerable vibration suppression improvement over the passive and detuned absorbers.

On-line resonance of116Sbg cryogenically oriented at the DOLIS-COLD facility

1987 ◽  
Vol 34 (1-4) ◽  
pp. 111-114
Author(s):  
N. J. Stone ◽  
V. R. Green ◽  
T. L. Shaw ◽  
J. Rikovska ◽  
C. Ashworth ◽  
...  
Keyword(s):  
Line Resonance ◽  
On Line

Cable Aging Assessment and Condition Monitoring Using Line Resonance Analysis (LIRA)

2008 ◽  
Author(s):  
Gary J. Toman ◽  
Paolo F. Fantoni
Keyword(s):  
Frequency Domain ◽  
Condition Monitoring ◽  
Field Experiments ◽  
Global Changes ◽  
Electrical Parameters ◽  
Cable System ◽  
Resonance Analysis ◽  
Line Resonance ◽  
Frequency Domain Reflectometry ◽  
On Line

This paper describes a method for cable system condition monitoring, developed at the IFE Halden Reactor Project, which is based on Frequency Domain Reflectometry. This method resulted in the development of a system called LIRA (LIne Resonance Analysis), which can be used on-line to detect local or global changes in the cable electrical parameters as a consequence of insulation faults or degradation. This paper presents some results achieved in field experiments on signal cables for nuclear installations, in USA and Europe.

On-line tuning strategy for model predictive controllers

2001 ◽  
Vol 11 (3) ◽  
pp. 265-284 ◽  
Author(s):  
Ashraf Al-Ghazzawi ◽  
Emad Ali ◽  
Adnan Nouh ◽  
Evanghelos Zafiriou
Keyword(s):  
On Line ◽  
Model Predictive Controllers ◽  
Tuning Strategy ◽  
Predictive Controllers
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