Journal of Vibration and Acoustics: Recent submissions
Now showing items 1261-1280 of 3913
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Vibration Behavior of Flexible Rotor System Mounted on MR Squeeze Film Damper With Thermal Growth Effect
(The American Society of Mechanical Engineers (ASME), 2012)Semiactive vibration reduction devices using magnetorheological fluid (MR fluid) have proven to be effective in different engineering applications. MR squeeze film damper (MR-SFD) is one type of ... -
The Effects of Drilling Mud and Weight Bit on Stability and Vibration of a Drill String
(The American Society of Mechanical Engineers (ASME), 2012)The main goal of this research is to analyze the effects of drilling mud flow rate, drill string weight, weight on bit and angular velocity on stability and vibration of a drill string. To ... -
Time-Varying Meshing Stiffness Calculation and Vibration Analysis for a 16DOF Dynamic Model With Linear Crack Growth in a Pinion
(The American Society of Mechanical Engineers (ASME), 2012)A modified mathematical model for simulating gear crack from root with linear growth path in a pinion is developed, in which an improved potential energy method is used to calculate the ... -
Multi-channel Active Vibration Isolation for the Control of Underwater Sound Radiation From A Stiffened Cylindrical Structure: A Numerical Study
(The American Society of Mechanical Engineers (ASME), 2012)Numerical simulation of vibration control of a submerged stiffened cylindrical structure with active vibration isolators is presented. Vibration transmission from vibrating machinery to the cylindrical ... -
Natural Vibration of Functionally Graded Cylindrical Shells With Infinite and Finite Lengths
(The American Society of Mechanical Engineers (ASME), 2012)Upon the basic theory of functionally graded material cylindrical shell, the original 3-D foundational equations with variable coefficients are transformed into anisotropic and membrane-bending ... -
Effective Stiffening and Damping Enhancement of Structures With Strongly Nonlinear Local Attachments
(The American Society of Mechanical Engineers (ASME), 2012)We study the stiffening and damping effects that local essentially nonlinear attachments can have on the dynamics of a primary linear structure. These local attachments can be designed to act ... -
On Boundary Damping for an Axially Moving Tensioned Beam
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, an initial-boundary value problem for a linear-homogeneous axially moving tensioned beam equation is considered. One end of the beam is assumed to be simply-supported and to the ... -
Coupling of In-Plane Flexural, Tangential, and Shear Wave Modes of a Curved Beam
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, the coupling effects among three elastic wave modes, flexural, tangential, and radial shear, on the dynamics of a planar curved beam are assessed. Two sets of equations of ... -
Automatic Balancing of Twin Co-Planar Rotors
(The American Society of Mechanical Engineers (ASME), 2012)This paper explores the dynamics and stability of a twin rotor system fitted with passive automatic balancing devices (ABD). Essentially, autobalancers consist of several freely moving eccentric ... -
Vibration Modeling of a Rigid Rotor Supported on the Lubricated Angular Contact Ball Bearings Considering Six Degrees of Freedom and Waviness on Balls and Races
(The American Society of Mechanical Engineers (ASME), 2012)Nonlinear vibration analysis of angular contact ball bearings supporting a rigid rotor is presented herein considering the frictional moments (load dependent and load independent components of ... -
Fluidic Composite Tunable Vibration Isolators
(The American Society of Mechanical Engineers (ASME), 2012)Coupling a fluidic flexible matrix composite (F2MC) to an air-pressurized fluid port produces a fundamentally new class of tunable vibration isolators. This Fluidlastic device provides significant ... -
Onset of Self-Excited Oscillations of Traveling Wave Thermo-Acoustic-Piezoelectric Energy Harvester Using Root-Locus Analysis
(The American Society of Mechanical Engineers (ASME), 2012)The onset of self-excited oscillations is developed theoretically for a traveling wave thermo-acoustic-piezoelectric (TAP) energy harvester. The harvester is intended for converting thermal energy, ... -
Parametric Stability of Axially Accelerating Viscoelastic Beams With the Recognition of Longitudinally Varying Tensions
(The American Society of Mechanical Engineers (ASME), 2012)In this paper, the parametric stability of axially accelerating viscoelastic beams is revisited. The effects of the longitudinally varying tension due to the axial acceleration are highlighted, ... -
Harvesting Wind Energy Using a Galloping Piezoelectric Beam
(The American Society of Mechanical Engineers (ASME), 2012)Galloping of structures such as transmission lines and bridges is a classical aeroelastic instability that has been considered as harmful and destructive. However, there exists potential to harness ... -
Scattering of S0 and A0 Lamb Modes in a Plate With Multiple Damage
(The American Society of Mechanical Engineers (ASME), 2012)A study of scattering characteristics of S0 and A0 Lamb modes in an infinite isotropic plate with multiple damage is presented in this paper. Both plate theory and the wave function expansion ... -
Force Feedback Control for Active Stabilization of Synchronous Whirl Orbits in Rotor Systems With Nonlinear Stiffness Elements
(The American Society of Mechanical Engineers (ASME), 2012)Synchronous vibration in rotor systems having bearings, seals, or other elements with nonlinear stiffness characteristics is prone to amplitude jump when operating close to critical speeds as ... -
Cylindrical Shell Control With Center- and Corner-Placed Photostrictive Skew-Quad Actuator Systems
(The American Society of Mechanical Engineers (ASME), 2012)Light-driven photostrictive actuators can induce control actions for wireless non-contact actuation and control of precision structures and systems. Conventional distributed actuators laminated on ... -
Dynamic Modeling and Analysis of Mechanical Snubbing
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents four alternate models of varying complexity to examine mechanical snubbing in elastomeric isolators. Although the modeling, analysis, and experimentation presented is limited ... -
Rapid Heating Induced Vibration of Magnetostrictive Functionally Graded Material Plates
(The American Society of Mechanical Engineers (ASME), 2012)The thermal vibration study of magnetostrictive functionally graded material (FGM) plate under rapid heating is computed by using the generalized differential quadrature (GDQ) method. The dynamic ... -
A Comparison of the Effects of Nonlinear Damping on the Free Vibration of a Single-Degree-of-Freedom System
(The American Society of Mechanical Engineers (ASME), 2012)This article concerns the free vibration of a single-degree-of-freedom (SDOF) system with three types of nonlinear damping. One system considered is where the spring and the damper are connected ...