Results 11 to 20 of about 427,874 (264)
Applied Sciences, 2018 To avoid stick-slip vibration, one of the most important forms of self-excited vibrations in deep hole drilling, this paper studies the stability and bifurcation characteristics of a drilling system based on a two-degree-of-freedom discrete model.
Jianwei Huang +5 more
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Curved and Layered Structures, 2022 In this work, magneto-electro-mechanical size-dependent nonlinear vibration analysis of nanobeam embedded in multi-layer of Winkler, Pasternak, quadratic and cubic nonlinear elastic media is presented.
Sobamowo Gbeminiyi Musibau
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Stability of motion and drift of a rigid body in a non-contact inductive electromagnetic suspension [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамикаPurpose of this work is to study the nonlinear dynamics and stability of the motion of a conducting thin ring in the electromagnetic field of two circular inductors. Methods.
Udalov, Pavel Pavlovich +4 more
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A nonlinear model for vibro-acoustic analysis of a submerged axially moving cylindrical shell [PDF]
مهندسی مکانیک شریفInvestigating the acoustic vibrations of moving cylindrical shells in fluid is of interest to researchers due to their many applications in marine structures.
A. H. Orafa, M.M. Jalili, A.R. Fotuhi
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Modelling multiple time-scales with flexible parametric survival models
BMC Medical Research Methodology, 2022 Background There are situations when we need to model multiple time-scales in survival analysis. A usual approach in this setting would involve fitting Cox or Poisson models to a time-split dataset.
Nurgul Batyrbekova +7 more
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Hopf bifurcation analysis of scalar implicit neutral delay differential equation
Electronic Journal of Qualitative Theory of Differential Equations, 2018 Hopf bifurcation analysis is conducted on a scalar implicit Neutral Delay Differential Equation (NDDE) by means of the extension of two analytical methods: 1) center manifold reduction combined with normal form theory; 2) method of multiple scales.
Li Zhang, Gábor Stépán
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Journal of Rock Mechanics and Geotechnical Engineering, 2020 The greatest challenges of rigorously modeling coupled hydro-mechanical (HM) processes in fractured geological media at different scales are associated with computational geometry.
Mengsu Hu, Jonny Rutqvist
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A note on the method of multiple scales [PDF]
Quarterly of Applied Mathematics, 1980 A modification of the method of multiple scales makes use of the expansion of parameters of the system in order to remove undesirable characteristics of the solution obtained by the usual multiple-scale method. When applied to the damped harmonic oscillator, the modification leads to the exact solution.
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NONLINEAR PRIMARY RESONANCE OF A CIRCULAR SANDWICH PLATE UNDER STATIC LOAD
Jixie qiangdu, 2021 Based on Reissner’s sandwich plate theory,the nonlinear dynamic equations of the circular sandwich plate under static load are established by using the Hamilton principle.
GUO Wei, DU GuoJun, HU YuDa
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Stability Analysis of a Strongly Displacement Time-Delayed Duffing Oscillator Using Multiple Scales Homotopy Perturbation Method [PDF]
Journal of Applied and Computational Mechanics, 2018 In the present study, some perturbation methods are applied to Duffing equations having a displacement time-delayed variable to study the stability of such systems.
Yusry El-Dib
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