Journal of Vibration and Acoustics: Recent submissions
Now showing items 621-640 of 3913
-
Optimal Design of Double-Mass Dynamic Vibration Absorbers Minimizing the Mobility Transfer Function
(The American Society of Mechanical Engineers (ASME), 2018)Although the vibration suppression effects of precisely adjusted dynamic vibration absorbers (DVAs) are well known, multimass DVAs have recently been studied with the aim of further improving their performance and avoiding ... -
Evaluation of Meniscal Mechanics and Proteoglycan Content in a Modified Anterior Cruciate Ligament Transection Model
(The American Society of Mechanical Engineers (ASME), 2018)In noncontact annular labyrinth seals used in turbomachinery, fluid prerotation in the direction of shaft rotation effectively increases fluid velocity in the circumferential direction and generates fluid forces with ... -
Transfer Function Analysis of Constrained, Distributed Piezoelectric Vibration Energy Harvesting Beam Systems
(The American Society of Mechanical Engineers (ASME), 2018)This paper presents a novel formulation and exact solution of the frequency response function (FRF) of vibration energy harvesting beam systems by the distributed transfer function method (TFM). The method is applicable ... -
Vibrational Response of Initially Deformed Bistable Microbeams Under the Combined Effect of Mechanical Shock Loads and Electrostatic Forces
(The American Society of Mechanical Engineers (ASME), 2018)This paper focuses on the influence of sudden drop tests on the nonlinear structural behavior of electrically actuated bi-table shallow microelectromechanical system (MEMS) arches. The assumed structure consists of an ... -
Band Gap Characteristics of Nonrotating Passive Periodic Drill String
(The American Society of Mechanical Engineers (ASME), 2018)A new class of drill strings is investigated whereby strategically designed and placed periodic inserts are utilized to filter out the vibration transmission along the drill strings. Such mechanical filtering capabilities ... -
Adjustable-Smooth Polynomial Command-Shaping Control With Linear Hoisting
(The American Society of Mechanical Engineers (ASME), 2018)Great amount of work has been dedicated to eliminate residual vibrations in rest-to-rest motion. Considerable amount of these methods is based on convolving a general input signal with a sequence of timed impulses. These ... -
Damping Design of Flexible Structures With Graded Materials Under Harmonic Loading
(The American Society of Mechanical Engineers (ASME), 2018)This article presents a novel moving isosurface threshold (MIST) method for designing flexible structures using graded materials with multivolume fractions and constraints and viscous or hysteretic damping under harmonic ... -
Experimental Application of Time-Domain Transmissibility Identification to Fault Detection and Localization in Acoustic Systems
(The American Society of Mechanical Engineers (ASME), 2018)This paper considers a technique for fault detection and localization based on time-domain transmissibility identification. This technique takes the advantage of unknown external (ambient) excitation to identify a ... -
Flutter Limit Investigation for a Horizontal Axis Wind Turbine Blade
(The American Society of Mechanical Engineers (ASME), 2018)This work presents a new aeroelastic model that governs the extensional, chordwise, flapwise, and torsional vibrations of an isolated horizontal axis wind turbine blade. The model accounts for the sectional offsets between ... -
Free Vibration of Thin Spherical Shells
(The American Society of Mechanical Engineers (ASME), 2017)This research introduces a new approach to analytically derive the differential equations of motion of a thin spherical shell. The approach presented is used to obtain an expression for the relationship between the transverse ... -
An Efficient Iterative Approach for the Analysis of Thermal Instabilities in Rotating Machines
(The American Society of Mechanical Engineers (ASME), 2017)Most of the technological developments achieved in the turbomachinery field during the last years have been obtained through the introduction of fluid dynamic bearings, in particular tilting pad journal bearings (TPJBs). ... -
Wind Turbine Blade Damage Detection Using Supervised Machine Learning Algorithms
(The American Society of Mechanical Engineers (ASME), 2017)Wind turbine blades undergo high operational loads, experience variable environmental conditions, and are susceptible to failure due to defects, fatigue, and weather-induced damage. These large-scale composite structures ... -
Hopf Bifurcation Control for Rolling Mill Multiple-Mode-Coupling Vibration Under Nonlinear Friction
(The American Society of Mechanical Engineers (ASME), 2017)Rolling mill system may lose its stability due to the change of lubrication conditions. Based on the rolling mill vertical–torsional–horizontal coupled dynamic model with nonlinear friction considered, the system stability ... -
Free Vibration Characteristics of a Finite Ring-Stiffened Elliptic Cylindrical Shell
(The American Society of Mechanical Engineers (ASME), 2017)A theoretical method is employed to study the free vibration characteristics of a finite ring-stiffened elliptic cylindrical shell. Vibration equations of the elliptic cylindrical shell are derived based on Flügge shell ... -
Prediction of Vibrations and Reradiated Noise Due to Railway Traffic: A Comprehensive Hybrid Model Based on a Finite Element Method and Method of Fundamental Solutions Approach
(The American Society of Mechanical Engineers (ASME), 2017)The growing of railway infrastructures in urban environments demands accurate methods to predict and mitigate potential annoyance of the inhabitants of the surrounding buildings. The present paper aims to contribute to the ... -
Experimental Study on Complex Modes of an End-Damped Continuous Beam
(The American Society of Mechanical Engineers (ASME), 2017)The complex modes of an end-damped cantilevered beam are studied as an experimental example of a nonmodally damped continuous system. An eddy-current damper is applied, for its noncontact and linear properties, to the end ... -
Theoretical and Experimental Study of an Electromechanical System Actuated by a Brusselator Electronic Circuit Simulator
(The American Society of Mechanical Engineers (ASME), 2017)This paper deals with the theoretical and experimental study of an electromechanical system (EMS) actuated by a chemo-inspired oscillator, namely, the Brusselator oscillator. The modeling of such a system is presented. ... -
Variability Analysis of Modal Characteristics of Frequency-Dependent Visco-Elastic Three-Layered Sandwich Beams With Spatial Random Geometrical and Material Properties
(The American Society of Mechanical Engineers (ASME), 2017)Material and physical properties of a frequency-dependent visco-elastic sandwich beam are modeled as a set of spatial random fields and represented by means of the Karhunen–Loève expansion. Variability analysis of frequency ... -
Dynamic Analyses of Axisymmetric Rotors Through Three-Dimensional Approaches and High-Fidelity Beam Theories
(The American Society of Mechanical Engineers (ASME), 2017)This paper evaluates the differences between two existing ways to derive the governing equations of axisymmetric rotors in an inertial frame of reference. According to the first approach, only a skew-symmetric gyroscopic ... -
Acousto-Elastic Interactions in High-Pressure CO2 Centrifugal Compressors
(The American Society of Mechanical Engineers (ASME), 2017)Accurate determination of acousto-elastic natural frequencies in centrifugal compressors is important in order to avoid resonance events that may lead to machine failure. Compressors operating with CO2 at high pressures, ...