Results 91 to 100 of about 1,050 (195)

The Two-Parameter Bifurcation and Evolution of Hunting Motion for a Bogie System

open access: yesApplied Sciences
The complex service environment of railway vehicles leads to changes in the wheel–rail adhesion coefficient, and the decrease in critical speed may lead to hunting instability.
Shijun Wang, Lin Ma, Lingyun Zhang
doaj   +1 more source

Role of Detuning in the Final Stage of Subharmonic Mode Transition in Boundary Layers

open access: yes, 2007
This work involves mechanisms for transition to turbulence in a Blasius boundary layer through resonant interactions between a plane Tollmien-Schlichting Wave and pairs of oblique waves with equal-but-opposite wave angles.
Corke, Thomas C.
core  

Characterization of MEMS resonators via feedthrough de-embedding of harmonic and subharmonic pulsed-mode response

open access: yes, 2015
International audienceIn this paper, we model and give experimental evidence of the efficiency of pulsed-mode actuation for the characterization of capacitive MEMS resonators.
Brenes, Alexis   +3 more
core   +1 more source

Period-tripling subharmonic oscillations in a driven superconducting resonator

open access: yes, 2017
We have observed period-tripling subharmonic oscillations in a driven superconducting coplanar waveguide resonator operated in the quantum regime, kappa T-B
Bylander, Jonas,   +17 more
core   +1 more source

Observation of Optical Chaotic Solitons and Modulated Subharmonic Route to Chaos in Mode-Locked Laser

open access: yesPhysical Review Letters
We reveal a new scenario for the transition of solitons to chaos in a mode-locked fiber laser: the modulated subharmonic route. Its universality is confirmed in two different laser configurations, namely, a figure-of-eight and a ring laser. Numerical simulations of the laser models agree well with the experiments.
Huiyu Kang   +8 more
openaire   +3 more sources

On the Use of the Subharmonic Resonance as a Method for Filtration

open access: yes, 2011
We study the feasibility of employing subharmonic resonance of order one-half to create a bandpass filter. A filter made up of two clamped-clamped microbeam resonators coupled by a weak beam is employed as a test design.
Eihab M. Abdel-Rahman   +2 more
core   +1 more source

Subharmonics and Ultraharmonics in the Forced Oscillations of Weakly Nonlinear Systems

open access: yes, 1976
The characteristics of subharmonic and ultraharmonic modes appearing in the forced, steady?state oscillations of weakly nonlinear systems are considered from the physical, rather than mathematical, viewpoint.
Prosperetti, Andrea, Andrea Prosperetti
core   +1 more source

On subharmonic instability in boundary layers

open access: yes, 2012
The subharmonic instability in two-dimensional boundary layer on a flat plate is analyzed using the parametric instability model and the resonant triad model.
Masad, Jamal A.
core  

LOW-THRESHOLD SUBHARMONIC GENERATION IN COMPOSITE STRUCTURES WITH CANTOR-LIKE CODE

open access: yes, 1992
We show experimental evidence of extremely low thresholds for subharmonic generation of ultrasonic waves in one-dimensional artificial piezoelectric plates with Cantor-like structure, as compared to the corresponding homogeneous and periodical plates ...
BETTUCCI A   +5 more
core  

Two-parameter nonsmooth grazing bifurcations of limit cycles: classification and open problems

open access: yes, 2005
This paper proposes a strategy for the classification of codimension-two grazing bifurcations of limit cycles in piecewise smooth systems of ordinary differential equations.
Homer, ME   +7 more
core  

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