Journal of Vibration and Acoustics: Recent submissions
Now showing items 401-420 of 3913
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Linear Finite Element Modeling of Joined Structures With Riveted Connections
(The American Society of Mechanical Engineers (ASME), 2020)Riveted connections are widely used to join basic components, such as beams and panels, for engineering structures. However, accurately modeling joined structures with riveted connections can be a challenging task. In this ... -
Transmission Loss and Dynamic Response of Hierarchical Membrane-Type Acoustic Metamaterials
(The American Society of Mechanical Engineers (ASME), 2020)A deployment-scale array of locally resonant membrane-type acoustic metamaterials (MAMs) is fabricated. The acoustic performance of the array is measured in a transmission loss chamber, and a complex interaction between ... -
Modular Vibration Control Unit Formed by an Electromagnetic Proof-Mass Transducer and Sweeping Resistive–Inductive Shunt
(The American Society of Mechanical Engineers (ASME), 2020)This paper presents a vibration control unit formed by an electromagnetic proof-mass transducer connected to a sweeping resistive–inductive (RL)-shunt, which can be used to control broadband flexural vibrations of thin ... -
A Multi-domain Approach to the Stabilization of Electrodynamic Levitation Systems
(The American Society of Mechanical Engineers (ASME), 2020)The Hyperloop transportation system paradigm has gained increasing attention in the last years due to its potential advantages in technology, territory, and infrastructure. From an engineering point of view, it would lead ... -
Tuned Sloshing Dampers With Large Rectangular Core Penetrations
(The American Society of Mechanical Engineers (ASME), 2020)Space restrictions at the top of tall buildings may necessitate using tuned sloshing dampers (TSD) tanks with large rectangular penetrations to accommodate the structural core of the tower. A finite element model is employed ... -
Acoustic Performance of a Periodically Voided Viscoelastic Medium With Uncertainty in Design Parameters
(The American Society of Mechanical Engineers (ASME), 2020)The effect of uncertainties in material and geometric parameters on the acoustic performance of a viscoelastic coating is investigated. The model of the coating comprises a structure conventionally used in underwater ... -
A Model for the Fast Determination of Modal Sound Transmission of Large Rectangular Opening
(The American Society of Mechanical Engineers (ASME), 2020)The existence of openings affects the sound insulation performance of structures significantly. The determination of sound transmission through large rectangular openings is often time-consuming, because of the large number ... -
Investigation on Nonlinear Dynamic Characteristics of a New Rigid-Flexible Gear Transmission With Wear
(American Society of Mechanical Engineers (ASME), 2019)At present, the mean value of the meshing stiffness and the gear backlash is a fixed value in the nonlinear dynamic model. In this study, wear is considered in the model of the gear backlash and time-varying stiffness. ... -
Extracting Mode Shapes for Beams Through a Passing Auxiliary Mass
(American Society of Mechanical Engineers (ASME), 2019)This paper shows an approach to evaluate mode shapes for beams through using a passing auxiliary mass. The coupled system of an auxiliary mass passing over a beam is time-dependent, and the corresponding instantaneous ... -
Model and Control System Development for a Distributed Actuation Magnetic Bearing and Thin-Walled Rotor Subject to Noncircularity
(American Society of Mechanical Engineers (ASME), 2019)This paper considers the problem of controlling the vibration of a lightweight thin-walled rotor with a distributed actuation magnetic bearing (DAMB). A theoretical flexible rotor model is developed that shows how multiharmonic ... -
Asymmetric Lamb Wave Propagation and Mode Isolation in Thin Plate With Spatiotemporal Periodic Stiffness
(American Society of Mechanical Engineers (ASME), 2019)The Lamb wave propagation through a thin plate with periodic spatiotemporal variation of material property was investigated through numerical simulations. It was found that regular oscillations of Young's modulus in both ... -
Separating Multiple Moving Sources by Microphone Array Signals for Wayside Acoustic Fault Diagnosis
(American Society of Mechanical Engineers (ASME), 2019)Wayside acoustic defective bearing detector (ADBD) system is a potential technique in ensuring the safety of traveling vehicles. However, Doppler distortion and multiple moving sources aliasing in the acquired acoustic ... -
Damage-Mitigating Predictive Control of Airfoil Flutter for a General Hypersonic Flight Vehicle
(American Society of Mechanical Engineers (ASME), 2019)This paper aims to investigate the airfoil flutter damage-mitigating problem in hypersonic flow. A new adaptive robust nonlinear predictive control law is designed in this paper to mitigate the damage during airfoil flutter ... -
Development of Vibration Isolator With Controllable Stiffness Using Permanent Magnets and Coils
(American Society of Mechanical Engineers (ASME), 2019)In this study, a novel vibration isolator is presented. The presented isolator possesses the controllable stiffness and can be employed in vibration isolation at a low-resonance frequency. The controllable stiffness of the ... -
An Enhanced Axisymmetric Solid Element for Rotor Dynamic Model Improvement
(American Society of Mechanical Engineers (ASME), 2019)The authors present an improved formulation for the axisymmetric solid harmonic finite element (FE) modeling of a flexible, spinning rotor. A thorough comparison of beam-type FE and axisymmetric solid FE rotor models is ... -
Stochastic Dynamic Load Identification on an Uncertain Structure With Correlated System Parameters
(American Society of Mechanical Engineers (ASME), 2019)A stochastic dynamic load identification algorithm is proposed for an uncertain dynamic system with correlated random system parameters. The stochastic Green's function is adopted to establish the relationship between the ... -
A Semianalytical Vibration Analysis of Partially Wet Square Cantilever Plate With Numerical and Experimental Verification: Partially Wet Modeshapes
(American Society of Mechanical Engineers (ASME), 2019)A semianalytical study of a uniform homogenous partially submerged square cantilever plate vibration is presented. The structure is assumed to be a Kirchhoff's plate, clamped on one edge and free on the other edges. The ... -
Elastic Wave Propagation in Hierarchical Honeycombs With Woodpile-Like Vertexes
(American Society of Mechanical Engineers (ASME), 2019)This paper investigates the dispersion behavior of elastic wave propagation in hierarchical honeycombs using the finite element method in conjunction with the Bloch's theorem. The hierarchical honeycomb is constructed by ... -
On the Nonlinear Energy Interactions in Harmonically Excited Post-Buckled Flexible Inverted Pendulum in the Presence of Friction
(American Society of Mechanical Engineers (ASME), 2019)Nonlinear energy interaction is a fascinating feature of nonlinear oscillators and has been drawing the attention of researchers since the last few decades. Omnipresent friction in mechanical systems can play a crucial ... -
Smart Rotor With Trailing Edge Flap Considering Bend–Twist Coupling and Aerodynamic Damping: Modeling and Control
(American Society of Mechanical Engineers (ASME), 2019)Aerodynamic damping and bend–twist coupling significantly affect the dynamic response of wind turbines. In this paper, unsteady aerodynamics, aerodynamic damping, and bend–twist coupling (twist-towards-feather) are combined ...