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Open AccessJournal ArticleDOI

Ground resonance: nonlinear modeling and analysis

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TLDR
In this article, the authors show that nonlinearity inherent in the lead-lag and flap equations will result in limit cycle oscillations and this is also demonstrated through experimental studies.
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This article is published in IFAC-PapersOnLine.The article was published on 2020-01-01 and is currently open access. It has received 1 citations till now. The article focuses on the topics: Nonlinear system & Ground resonance.

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References
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Journal ArticleDOI

Matrix pencil method for estimating parameters of exponentially damped/undamped sinusoids in noise

TL;DR: It is found through perturbation analysis and simulation that, for signals with unknown damping factors, the pencil method is less sensitive to noise than the polynomial method.
Journal ArticleDOI

An application of Floquet theory to prediction of mechanical instability

TL;DR: In this paper, the problem of helicopter mechanical instability is considered for the case where one blade damper is inoperative, and it is shown that if the hub is considered to be nonisotropic, the equations of motion have periodic coefficients which cannot be eliminated.
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