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Michael Reiterer and Joachim Muik
In this paper, parametric forced tuned solid ball dampers (TSBD) are considered for vibration control of engineering structures in an untypical way. The special feature of the presented investigation is to evaluate the potential application of parametric...
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Pablo Vidal García, Stefano Sarti, Martina Carillo, Lucia Giuliano, Augusto Marcelli, Bruno Spataro, Andrea Alimenti, Kostiantyn Torokhtii, Enrico Silva and Nicola Pompeo
In this work, a detailed parametric study assessing the impact of low-conductivity coatings on the radio-frequency accelerating cavity quality factor and resonance frequency shift is presented. In particular, this study is aimed at proving the feasibilit...
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Qingchao Yang, Zhaozhao Ma, Ruiping Zhou, Heow Pueh Lee and Kai Chai
In recent times, there has been a significant focus on electromagnetic resonant shunt damping (ERSD) and quasi-zero-stiffness vibration isolators (QZS VI) as prominent solutions for vibration mitigation or energy harvesting. In this paper, an innovative ...
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Mihai Bugaru and Ovidiu Vasile
Time?history analysis (THA), the Lyapunov Exponents Approach (LEA), and the Poincaré Map (PM) are enhanced to investigate the dynamic instability of forced torsional vibrations (FTV) for a double tripod industrial driveshaft (DTID) in transition through ...
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Victoria Semenova, Kirill Rozhdestvensky, Danil Albaev and Zin Min Htet
Hydrodynamical analysis of the conditions for the occurrence of chaotic ship roll, leading in some cases to the capsizing of the vessel, showed that such conditions are most likely to occur in the zone of the main parametric resonance of the roll when it...
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Tarek S. Amer, Roman Starosta, Ashraf Almahalawy and Abdelkarim S. Elameer
This paper examines a new vibrating dynamical motion of a novel auto-parametric system with three degrees of freedom. It consists of a damped Duffing oscillator as a primary system attached to a damped spring pendulum as a secondary system. Lagrange?s eq...
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Raj Kumar, Yedukondalu Kamatham, Samineni Peddakrishna, Ajitha Gaddam
Pág. 66 - 76
A compact triple T-shaped stub with meander loaded strip antenna for penta band applications is proposed. The rectangular patch antenna with meandered and open-ended slot cuts is utilized to realize four operating bands at 2.45 GHz, 3.1 GHz, 5.3 GHz, and...
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Bochong Li, Ryo Oka, Ping Xuan, Yuichiro Yoshimura and Toshiya Nakaguchi
The role of multi-parametric magnetic resonance imaging (mp-MRI) is becoming increasingly important in the diagnosis of the clinical severity of prostate cancer (PCa). However, mp-MRI images usually contain several unaligned 3D sequences, such as DWI ima...
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Wael S. Amer, Tarek S. Amer, Roman Starosta and Mohamed A. Bek
The major objective of this research is to study the planar dynamical motion of 2DOF of an auto-parametric pendulum attached with a damped system. Using Lagrange?s equations in terms of generalized coordinates, the fundamental equations of motion (EOM) a...
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Simona Di Nino, Daniele Zulli and Angelo Luongo
A base isolation system, aimed to passively control the nonlinear dynamics of an internally resonant tower, exposed to turbulent wind flow, is studied. A continuous visco-elastic beam, constrained at the bottom end by a nonlinear visco-elastic device and...
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