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Effect of dry friction on a parametric nonlinear oscillator
Parametrically excited oscillators are used in several domains, in particular to improve the dynamical behaviour of systems like in the case of the...
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Nonlinear dynamics of dry friction oscillator subjected to combined harmonic and random excitations
The dynamics of a nonlinear single degree freedom oscillator on a moving belt subjected to combined harmonic and random excitations is numerically...
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Seismic Isolation of NPP Turbine Unit Using Dry Friction Devices
The possibility of reducing the acceleration of NPP turbine unit during earthquakes with the use of devices working on the principle of dry friction...
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Friction-Induced Vibrations of a Two DOF Self-Excited SD Oscillator
PurposeAn archetypal two degree-of-freedom (DOF) self-excited system driven by moving belt friction is proposed based upon the smooth and...
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Solving the transient response of the randomly excited dry friction system via piecewise RBF neural networks
Over the years, practical importance and interesting dynamical features have caused a growing interest in dry friction systems. Nevertheless, an...
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Invariant torus and its destruction for an oscillator with dry friction
Mechanical systems with dry friction are typical Filippov systems. Such class of systems have complicated dynamical behaviors due to the existence of...
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Simulating Nonlinear Beating Phenomena Induced by Dry Friction in Dynamic Systems
Self-excitation and beating phenomena are the result of nonlinear constitutive behavior of vibrating structures with nonlinear components. These...
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Discontinuous Dynamics of a 2-DOF Friction Oscillator with Rigid and Elastic Composite Constraints
PurposeThe switching of motion states and grazing/sliding motion for an oscillator are typical dynamic phenomena in some discontinuous/non-smooth...
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Periodic solution and stability analysis of dry friction system based on an alternate state-space shooting algorithm
Dry frictions have significant effects on the dynamic responses of engineering systems, due to the strong nonlinear/non-smooth stick and slip...
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Nonlinear analysis of complex mechanisms with multi-clearances considering dry friction and lubricated joints
To investigate the bifurcation and chaotic behavior of complex mechanisms with multi-clearance lubricated joints, the planar six-bar feeding...
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Discontinuous dynamics of a 3-DOF oblique-impact system with dry friction and single pendulum device
Based on the high-dimensional flow switchability theory in discontinuous dynamical systems, this paper aims at investigating the dynamical behaviors...
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A Study on Friction Dampers and Their Contact Geometry Design
Increasing energy efficiency remains, alongside with lightweight design, one of the most important global goals of the technological development for...
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Asymmetric and chaotic responses of dry friction oscillators with different static and kinetic coefficients of friction
The responses of a simple harmonically excited dry friction oscillator are analysed in the case when the coefficients of static and kinetic...
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Krylov–Bogolyubov Averaging Method-Based Analytical Solution of an Unforced Nonlinear Coulomb Damped Oscillator
PurposeThe signum function is highly non-linear and discontinuous in nature, hence obtaining a closed-form solution is extremely difficult. The...
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Global dynamics of the dry friction oscillator with shape memory alloy
As a new functional material, shape memory alloy (SMA) can simplify the traditional mechanical structure and design a compact vibration control...
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Investigation on vibration mitigation methodology with synergistic friction and electromagnetic dam** energy dissipation
Friction dampers are widely used in vibration control of mechanical and civil architectures as a highly robust contact-based energy dissipation...
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Dynamics and energy harvesting from parametrically coupled self-excited electromechanical oscillator
The investigated parametrically coupled electromechanical structure is composed of a mechanical Duffing oscillator whose mass sits on a moving belt...
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Quantum “contact” friction: The contribution of kinetic friction coefficient from thermal fluctuations
A thermal model of kinetic friction is assigned to a classical loaded particle moving on a fluctuating smooth surface. A sinusoidal wave resembles...
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Experimental characterization of a nonlinear mechanical oscillator with softening behaviour for large displacements
This paper presents an experimental insight into the performance of a mechanical oscillator consisting of an X-shaped-spring configuration. This...
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Friction Analysis of an Unbalanced Disk with Recurrence Plot by Using Simpson Integration and Empirical Mode Decomposition
The most common failures that raise vibration levels in rotating machines are friction and unbalanced faults of their components. This kind of fault...