Journal of Vibration and Acoustics: Recent submissions
Now showing items 541-560 of 3913
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Voltage-Induced Snap-Through of an Asymmetrically Laminated, Piezoelectric, Thin-Film Diaphragm Micro-Actuator—Part 1: Experimental Studies and Mathematical Modeling
(The American Society of Mechanical Engineers (ASME), 2018)A piezoelectric thin-film microactuator in the form of an asymmetrically laminated diaphragm is developed as an intracochlear hearing aid. Experimentally, natural frequencies of the microactuator bifurcate with respect to ... -
Influence of Rotor Suspension Anisotropy on Oil Film Instability
(The American Society of Mechanical Engineers (ASME), 2018)A crucial problem of turbomachinery is the oil film instability on increasing the angular speed, which is correlated with the asymmetry of the bearing stiffness matrix and resembles the hysteretic instability somehow. As ... -
A Method of Panel Flutter Suppression and Elimination for Aeroelastic Structures in Supersonic Airflow
(The American Society of Mechanical Engineers (ASME), 2018)In traditional active flutter control, piezoelectric materials are used to increase the stiffness of the aeroelastic structure by providing an active stiffness, and usually the active stiffness matrix is symmetric. That ... -
Study on Wind-Induced Vibration Behavior of Railway Catenary in Spatial Stochastic Wind Field Based on Nonlinear Finite Element Procedure
(The American Society of Mechanical Engineers (ASME), 2018)Due to its long-span structure and large flexibility, an electrified railway catenary is very sensitive to environmental wind load, especially the time-varying stochastic wind, which may lead to a strong forced vibration ... -
A Linearization Method of Piecewise Linear Systems Based on Frequency Domain Characteristics With Application to Semi-Active Control of Vibration
(The American Society of Mechanical Engineers (ASME), 2018)In this paper, a new approach is presented for linearization of piecewise linear systems with variable dry friction, proportional with absolute value of relative displacement. The transmissibility factors of considered ... -
Optimal Vibration Absorber With a Friction Damper
(The American Society of Mechanical Engineers (ASME), 2018)The response of a single degree-of-freedom spring mass system connected to a vibration absorber with a friction damper and subjected to a sinusoidal excitation is considered in this paper. Two possible configurations of ... -
Active Control of Viscoelastic Systems by the Method of Receptance
(The American Society of Mechanical Engineers (ASME), 2018)Viscoelastic materials have frequency and temperature-dependent properties and they can be used as passive controlling devices in wide range of vibration applications. In order to design active control for viscoelastic ... -
Vibration Absorbers for a Mistuned Bladed Disk
(The American Society of Mechanical Engineers (ASME), 2018)Mistuning refers to variations in modal properties of blades due to manufacturing tolerances and material defects. This can result in the amplification of a blade vibratory amplitude. This paper deals with the design of ... -
On Instability Pockets and Influence of Damping in Parametrically Excited Systems
(The American Society of Mechanical Engineers (ASME), 2018)In most parametrically excited systems, stability boundaries cross each other at several points to form closed unstable subregions commonly known as “instability pockets.” The first aspect of this study explores some general ... -
Analytical Method for Stroboscopically Sampling General Periodic Functions With Arbitrary Frequency Sweep Rates
(The American Society of Mechanical Engineers (ASME), 2018)Parameter sweeps are commonly used to explore the behavior of dynamical systems. This paper derives exact solutions for the instances in time to stroboscopically sample the response of a dynamical system subject to varying ... -
Selective Band Gap to Suppress the Spurious Acoustic Mode in Film Bulk Acoustic Resonator Structures
(The American Society of Mechanical Engineers (ASME), 2018)In this work, we investigate numerically the propagation of Lamb waves in a film bulk acoustic resonator (FBAR) structure formed by piezoelectric ZnO layer sandwiched between two Mo electrodes coupled with Bragg reflectors; ... -
Analysis of Dynamic Behavior of the Finite Elastic Metamaterial-Based Structure With Frequency-Dependent Properties
(The American Society of Mechanical Engineers (ASME), 2018)For practical applications of the elastic metamaterials, dynamic behavior of finite structures made of elastic metamaterials with frequency dependent properties are analyzed theoretically and numerically. First, based on ... -
Optimum Tuning of Passive Tuned Mass Dampers for the Mitigation of Pulse-Like Responses
(The American Society of Mechanical Engineers (ASME), 2018)Tuned mass dampers (TMDs) are typically introduced and calibrated as natural passive control devices for the vibration mitigation of the steady-state response of primary structures subjected to persistent excitations. ... -
Elastic–Viscoelastic Composite Structures Analysis With an Improved Burgers Model
(The American Society of Mechanical Engineers (ASME), 2018)Composite structures integrated with viscoelastic materials are becoming more and more popular in the application of vibration suppression. This paper presents a comprehensive approach for analyzing this class of structures ... -
An Accurate and Robust Geometrically Exact Curved Beam Formulation for Multibody Dynamic Analysis
(The American Society of Mechanical Engineers (ASME), 2018)An accurate and robust geometrically exact beam formulation (GEBF) is developed to simulate the dynamics of a beam with large deformations and large rotations. The undeformed configuration of the centroid line of the beam ... -
Suspension Design, Modeling, and Testing of a Thermo-Acoustic-Driven Linear Alternator
(The American Society of Mechanical Engineers (ASME), 2018)The Score-Stove™ generates electricity from a wood-burning cooking stove using a thermo-acoustic engine (TAE) that converts heat to sound through a linear alternator (LA). This paper introduces a prototype hemitoroidal ... -
Study the Effect of Tapering on the Nonlinear Behavior of an Exponentially Varying Width Piezoelectric Energy Harvester
(The American Society of Mechanical Engineers (ASME), 2018)It has been shown that exponentially tapering the width of a vibration-based piezoelectric energy harvester will result in increasing electric power per mass in a specified frequency. In this paper, a nonlinear solution ... -
Integer and Fractional Order-Based Viscoelastic Constitutive Modeling to Predict the Frequency and Magnetic Field-Induced Properties of Magnetorheological Elastomer
(The American Society of Mechanical Engineers (ASME), 2018)Magnetorheological elastomer (MRE)-based semi-active vibration mitigation device demands a mathematical representation of its smart characteristics. To model the material behavior over broadband frequency, the simplicity ... -
Dynamics of Slightly Curved Pipe Conveying Hot Pressurized Fluid Resting on Linear and Nonlinear Viscoelastic Foundations
(The American Society of Mechanical Engineers (ASME), 2018)One of the most important facilities in the oil and gas industry is the pipeline. These pipelines convey high pressure with high temperature (HPHT) fluids and transit several kilometers traveling through different seafloor ... -
A Refinement of Mindlin Plate Theory Using Simultaneous Rotary Inertia and Shear Correction Factors
(The American Society of Mechanical Engineers (ASME), 2018)We revisit Mindlin's theory for flexural dynamics of plates using two correction factors, one for shear and one for rotary inertia. Mindlin himself derived and considered his equations with both correction factors, but ...