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Published in 2020 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2020.115594
Abstract: Abstract Parametric resonances of pipes caused by pulsating fluids have received much attention. However, the main concern is the pulsation of subcritical flow. Moreover, it is usually based on the Euler-Bernoulli pipe model. This paper…
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Keywords:
pulsation;
speed fluids;
parametric resonances;
resonances timoshenko ... See more keywords
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Published in 2022 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2023/04/043
Abstract: In this letter we uncover a new parametric resonance of axionic cosmic strings. This process is triggered by the presence on the string of internal mode excitations that resonantly amplify the amplitude of transverse displacements…
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Keywords:
cosmic strings;
resonances axionic;
axionic cosmic;
cosmology ... See more keywords
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Published in 2020 at "Applied Sciences"
DOI: 10.3390/app10217849
Abstract: Varying compliance (VC) is an unavoidable form of parametric excitation in rolling bearings and can affect the stability and safety of the bearing and its supporting rotor system. To date, we have investigated VC primary…
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Keywords:
period period;
period;
varying compliance;
ball bearing ... See more keywords