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RISDiscussion: “The Determination of Squeeze Film Dynamic Coefficients From Transient Two-Dimensional Experimental Data” (Roberts, J. B., Ellis, J., and Hosseini Sianaki, A., 1990, ASME J. Tribol., 112, pp. 288–296)
Publisher: The American Society of Mechanical Engineers (ASME)
Research on the Interior Noise Reduction of an Elastic Cavity by the Multipoint Panel Acoustic Contribution Method Based on Moore–Glasberg Loudness Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: More and more attention has been paid to reduce the low frequency interior noise of the elastic cavity, such as automobiles, ships, airplanes, and railway vehicles, to provide the more comfortable riding environment for ...
Mitigation of Stick-Slip Vibrations in Drilling Systems With Tuned Top Boundary Parameters
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Aiming at preventing stick-slip oscillations in drilling systems for oil and gas explorations, a reduced-order model is proposed to capture the nonlinear torsional dynamics of drilling operations. In this model, the drill ...
Inertia Modulated Meta-Structure With Time-Varying Inertia Amplification
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, a new inertia modulated meta-structure is proposed to enable time-dependent inertia parameters, and thereby realize non-reciprocal wave propagation via spatiotemporal modulation. The designed cell structure ...
State Dependent Delay Influenced Drill String Oscillations and Stability Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the authors present a discrete system model to study the coupled axial–torsional dynamics of a drill string. The model is developed taking into account statedependent time delay and nonlinearities due to ...
Effect of Three Dimensional Surface Topography on Gas Flow in Rough Micronozzles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The gas flow characteristics in rectangular cross section converging–diverging micronozzles incorporating the effect of threedimensional (3D) rough surface topography are investigated. The fractal geometry is utilized ...
Scale Effect on Tension Induced Intermodal Coupling in Nanomechanical Resonators
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Scale effect on the tensioninduced intermodal coupling between the flexural modes in nanomechanical resonators is investigated. Based on the nonlocal theory of elasticity, a theoretical model is developed to depict the ...
Transverse Vibrations of Mixed Mode Cracked Nanobeams With Surface Effect
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Slant edge cracked effect considering the inherent relation between surface energy and mixedmode crack propagations on the free transverse vibrations of nanobeams with surface effect is investigated. First, the slant edge ...
A Continuum Damage Mechanics Model on Creep Rupture Life Assessment of a Steam Turbine Rotor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A nonlinear continuum damage mechanics model is proposed to assess the high temperature creep life of a steam turbine rotor, in which the effect of mean stress is taken into account and the ...
Stiffness and Damping Properties of (Semi) Floating Ring Bearing Using Magnetorheological Fluids as Lubricant
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Magnetorheological fluids (MRFs) are applicable for achieving semi-active control in smart bearings. For hydrodynamic bearings lubricated with MRF, changes of the viscosity induced by magnetic field lead to changes of the ...