Journal of Vibration and Acoustics: Recent submissions
Now showing items 801-820 of 3913
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Sound Transmission Through Double Leaf Partitions: A Criterion for Quick Convergence Using Space Harmonic Analysis
(The American Society of Mechanical Engineers (ASME), 2016)Space harmonic expansion has been used successfully to model sound transmission through infinite, periodically ribstiffened double leaf partitions. Since the solution to this method is obtained in a series form, computational ... -
Vibration Frequencies and Modes of a Z Shaped Beam With Variable Folding Angles
(The American Society of Mechanical Engineers (ASME), 2016)In this paper, we investigate the vibration characteristics of a Zshaped beam with variable folding angles which is used to model a folding wing of a morphing aircraft under the condition of a fixed structure. The governing ... -
Multimodal Vibration Control of Photo Electric Laminated Thin Cylindrical Shells Via Self Organizing Fuzzy Sliding Mode Control
(The American Society of Mechanical Engineers (ASME), 2016)In this paper, a novel multipiece actuator configuration is first proposed. This configuration exhibits several advantages over the existing ones, such as: (1) the ability to overcome the deficiency of oneway actuation of ... -
Wave Propagation Through a Micropolar Slab Sandwiched by Two Elastic Half Spaces
(The American Society of Mechanical Engineers (ASME), 2016)The problem of wave propagation through a micropolar elastic slab sandwiched by two classical elastic halfspaces is studied in this paper. Different from the classical elastic solids, the particle in micropolar solids can ... -
Nonlinear Friction Induced Vibration of a Slider–Belt System
(The American Society of Mechanical Engineers (ASME), 2016)A mass–spring–damper slider excited into vibration in a plane by a moving rigid belt through friction is a major paradigm of frictioninduced vibration. This paradigm has two aspects that can be improved: (1) the contact ... -
Wave Propagation in Sandwich Structures With Multiresonators
(The American Society of Mechanical Engineers (ASME), 2016)A new sandwich beam with embedded multiresonators is presented. Two continuum Timoshenko beam models are adopted for modeling sandwich beams. Numerical results show that multiple resonators can lead to multiple resonanttype ... -
Movable Rigid Scatterer Model for Flexural Wave Scattering on Thin Plates
(The American Society of Mechanical Engineers (ASME), 2016)Rigid scatterers are fundamentally important in the study of scattering of many types of waves. However, in the recent literature on scattering of flexural waves on thin plates, a “rigid scatterer†has been used to ... -
Numerical Investigation on the Selection of the System Outputs for Feedback Vibration Control of a Smart Blade Section
(The American Society of Mechanical Engineers (ASME), 2016)This study presents the possible and effective output signals for the feedback vibration control of the smart blade section undergoing different aerodynamic conditions. Equations of motions of the smart blade section are ... -
Frequencies and Modes of the Helmholtz Equation With Zero Normal Derivatives in Isosceles Triangular and Rhombic Domains
(The American Society of Mechanical Engineers (ASME), 2016)The twodimensional Helmholtz equation with zero normal derivatives on the boundary is studied using boundary collocation. The frequencies and modes are found for the isosceles triangular and rhombic domains. The solutions ... -
Study of Targeted Energy Transfer Inside Three Dimensional Acoustic Cavity by Two Nonlinear Membrane Absorbers and an Acoustic Mode
(The American Society of Mechanical Engineers (ASME), 2016)As a new approach to passive sound control in lowfrequency domain, the targeted energy transfer (TET) phenomenon has been investigated inside a threedimensional (3D) acoustic cavity by considering a two degreesoffreedom ... -
Experimental and Analytical Investigations of Dynamic Characteristics of Magnetorheological and Nanomagnetorheological Fluid Film Journal Bearing
(The American Society of Mechanical Engineers (ASME), 2016)The integrity and reliability of a rotor depend significantly on the dynamic characteristics of its bearings. Bearing design has been altered in many ways in order to achieve improvement in terms of damping and stiffness. ... -
On the Use of Ultrasound Based Technology for Cargo Inspection
(The American Society of Mechanical Engineers (ASME), 2016)A new guided wave imaging application for fast, lowcost ultrasoundbased cargo scanning system is proposed. The ultimate goal is the detection of highatomicnumber, shielding containers used to diminish the radiological ... -
On the Capability of Structural–Acoustical Fluid–Structure Interaction Simulations to Predict Natural Frequencies of Rotating Disklike Structures Submerged in a Heavy Fluid
(The American Society of Mechanical Engineers (ASME), 2016)Predicting natural frequencies of rotating disklike structures submerged in water is of paramount importance in the field of hydraulic machinery, since the dynamic response of disks presents similarities to the dynamic ... -
Dynamics of Cubic and Vibro Impact Nonlinear Energy Sink: Analytical, Numerical, and Experimental Analysis
(The American Society of Mechanical Engineers (ASME), 2016)This paper is devoted to study and compare dynamics of primary linear oscillator (LO) coupled to cubic and vibroimpact (VI) nonlinear energy sink (NES) under transient and periodic forcing. The classic analytical procedure ... -
Simulation of Wide Sense Stationary Random Time Series With Specified Spectral Densities
(The American Society of Mechanical Engineers (ASME), 2016)In this paper, an effective approach to the simulation of widesense stationary random timeseries, defined by its power spectral density (PSD) is presented. This approach is based on approximating the sample paths of target ... -
Time Dependent Reliability Analysis of Vibratory Systems With Random Parameters
(The American Society of Mechanical Engineers (ASME), 2016)The field of random vibrations of largescale systems with millions of degreesoffreedom (DOF) is of significant importance in many engineering disciplines. In this paper, we propose a method to calculate the timedependent ... -
Rotordynamic Force Prediction of a Shrouded Centrifugal Pump Impeller—Part II: Stability Analysis
(The American Society of Mechanical Engineers (ASME), 2016)In Paper I, some test cases of centrifugal pump impellers which showed unconventional impedances curves were reviewed and possible sources of the bump and dip in the impedance curves were investigated by simulating a ... -
Rotordynamic Force Prediction of a Shrouded Centrifugal Pump Impeller—Part I: Numerical Analysis
(The American Society of Mechanical Engineers (ASME), 2016)Computational fluid dynamics (CFD) is employed to calculate the fluidinduced forces in the leakage path of an incompressible shrouded centrifugal impeller. Numerical solutions of the whirling shrouded impeller at the ... -
A Noncontacting Approach for Full Field Strain Monitoring of Rotating Structures
(The American Society of Mechanical Engineers (ASME), 2016)The threedimensional pointtracking (3DPT) measurement approach is used in conjunction with finite element (FE) method and modal expansion technique to predict fullfield dynamic response on a rotating structure. A rotating ... -
Component Mode Synthesis Order Reduction for Dynamic Analysis of Structure Modeled With NURBS Finite Element
(The American Society of Mechanical Engineers (ASME), 2016)Nonuniform rational Bsplines (NURBS) finite element has advantages in analyzing the structure with curved surface geometry. In this research, we develop a component mode synthesis (CMS) based orderreduction technique which ...