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Model Based Control of Laminar Wake Using Fluidic Actuation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Control of fluid-structure interaction is of practical importance from the perspective of wake modification and reduction of vortex-induced vibrations (VIVs). The aim of this study is to design ...
Vertical Vibration of Machine Foundations
Publisher: American Society of Civil Engineers
Abstract: A perturbation technique, the method of multiple scales, is used to obtain an approximate analytical solution of the nonlinear dynamic response of foundations on soils. The analysis takes into account the nonlinearity of ...
Simulation of Squeeze-Film Damping of Microplates Actuated by Large Electrostatic Load
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: We present a new method for simulating squeeze-film damping of microplates actuated by large electrostatic loads. The method enables the prediction of the quality factors of microplates under a ...
Active Control of Nonlinear Oscillations in Bridges
Publisher: American Society of Civil Engineers
Abstract: In this paper, the nonlinear oscillations of a hinged‐hinged single‐span bridge due to midplane stretching is controlled by a combined active and passive control mechanism. The passive control enables one to shift to a ...
Passive Control of Nonlinear Oscillations in Bridges
Publisher: American Society of Civil Engineers
Abstract: This paper shows how to design the parameters of a passive control mechanism in order to keep bridges safe at all possible resonant frequencies caused by nonlinear effects due to midplane stretching. The control mechanism ...
Perturbation Methods in Nonlinear Dynamics—Applications to Machining Dynamics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The role of perturbation methods and bifurcation theory in predicting the stability and complicated dynamics of machining is discussed using a nonlinear single-degree-of-freedom model that accounts ...
On the Use of the Subharmonic Resonance as a Method for Filtration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: 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 ...
A van der Pol–Duffing Oscillator Model of Hydrodynamic Forces on Canonical Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical simulations of the flow past elliptic cylinders with different eccentricities have been performed using a parallel incompressible computational fluid-dynamics (CFD) solver. The pressure ...
Nonlinear Response of Infinitely Long Circular Cylindrical Shells to Subharmonic Radial Loads
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The method of multiple scales is used to analyze the nonlinear response of infinitely long, circular cylindrical shells (thin circular rings) in the presence of a two-to-one internal (autoparametric) ...
Computations of the Compressible Multiphase Flow Over the Cavitating High-Speed Torpedo
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: For high-speed cavitating flows, compressibility becomes significant in the liquid phase as well as in the vapor phase. In addition, the compressible energy equation is required for studying the ...