Journal of Vibration and Acoustics: Recent submissions
Now showing items 1801-1820 of 3913
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An Experimentally Verified Model of a Membrane Mirror Strip Actuated Using a Piezoelectric Bimorph
(The American Society of Mechanical Engineers (ASME), 2007)The behavior of a membrane mirror strip actuated using a piezoelectric bimorph is treated. An improved model for the transverse vibration is presented. The model accounts for the changes in ... -
A New Bypass Magnetorheological Fluid Damper
(The American Society of Mechanical Engineers (ASME), 2007)This study presents theoretical and experimental investigations of a novel external bypass, fail-safe, magnetorheological fluid (MRF) damper. A fail-safe MRF damper is referred to as a device ... -
Effects of Randomness on Band Gap Formation in Models of Fiber-Reinforced Composite Panels Having Quasirandom Fiber Arrangements
(The American Society of Mechanical Engineers (ASME), 2007)Large-scale deterministic simulations are performed in order to observe the band gap formation in composite models having quasirandom fiber arrangements. Unidirectional fiber-reinforced composite ... -
A Method for Designing and Fabricating Broadband Vibration Absorbers for Structural Noise Control
(The American Society of Mechanical Engineers (ASME), 2007)In this paper, a method for designing and fabricating broadband vibration absorbers (BBVAs) for structural noise control is described. The BBVA’s consist of a series of cantilevered masses, ... -
Dynamic Characteristics of a One-Unit Ball-Rod-Spring Balancer
(The American Society of Mechanical Engineers (ASME), 2007)The traditional ball-type automatic balancer consisting of several balls moving on a circular orbit is widely used in the optical disk drive industry for vibration reduction. Under proper working ... -
Gas Pulsation Reductions in a Multicylinder Compressor Suction Manifold Using Valve-to-Valve Mass Flow Rate Phase Shifts
(The American Society of Mechanical Engineers (ASME), 2007)This paper investigates the pressure pulsations caused by each mass flow rate through the suction valves and ports of a multicylinder compressor in order to attribute high-pressure pulsation ... -
Identification of Structural Stiffness and Damping Coefficients of a Shoed-Brush Seal
(The American Society of Mechanical Engineers (ASME), 2007)The multiple-shoe brush seal, a variation of a standard brush seal, accommodates arcuate pads at the bristles’ free ends. This novel design allows reverse shaft rotation operation and reduces ... -
Closure to “Discussion of ‘Improved Concept and Model of Eddy Current Damper’ ” (2007, ASME J. Vib. Acoust., 129, p. 396)
(The American Society of Mechanical Engineers (ASME), 2007)The author has commented that magnetic fields add vectorially and thus the addition of a second magnet results in a magnetic field with exactly twice the radial component. This is indeed true ... -
A State-Switched Absorber Used for Vibration Control of Continuous Systems
(The American Society of Mechanical Engineers (ASME), 2007)A state-switched absorber (SSA) is a device that is capable of switching between discrete stiffnesses; thus, it is able to instantaneously switch between resonance frequencies. The state-switched ... -
The Biot Model and Its Application in Viscoelastic Composite Structures
(The American Society of Mechanical Engineers (ASME), 2007)Application of viscoelastic materials in vibration and noise attenuation of complicated machines and structures is becoming more and more popular. As a result, analytical and numerical techniques ... -
Vibrations and Power Flows in a Coupled Beam System
(The American Society of Mechanical Engineers (ASME), 2007)Vibrations of and power flow between coupled beams have been the subject of many investigations, and various techniques have been developed over the years. However, most of the existing methods ... -
Synchronous Position Recovery Control for Flexible Rotors in Contact with Auxiliary Bearings
(The American Society of Mechanical Engineers (ASME), 2007)This paper details a methology for the active recovery of contact free levitation of a rotor from a state of persistent contact with auxiliary bearings. An analytical method to describe contact ... -
Experimental and Theoretical Nonlinear Dynamic Response of Intact and Cracked Bone-Like Specimens With Various Boundary Conditions
(The American Society of Mechanical Engineers (ASME), 2007)The potentiality of employing nonlinear vibrations as a method for the detection of osteoporosis in human bones is assessed. We show that if the boundary conditions (BC), relative to the ... -
Frame Flexibility Effects on Engine Mount Optimization for Vibration Isolation in Motorcycles
(The American Society of Mechanical Engineers (ASME), 2007)This paper examines the influence of frame flexibility on the optimization of an engine mounting system for enhanced vibration isolation in motorcycles. A theoretical model is developed to ... -
Pole Placement Techniques for Active Vibration Control of Smart Structures: A Feasibility Study
(The American Society of Mechanical Engineers (ASME), 2007)It is well known that there is degradation in the performance of a fixed parameter controller when the system parameters are subjected to a change. Conventional controllers can become even ... -
Integration of a Quantitative Feedback Theory (QFT)-Based Active Noise Canceller and 3D Audio Processor to Headsets
(The American Society of Mechanical Engineers (ASME), 2007)This paper seeks to enhance the quality of spatial sound reproduction by integrating two advanced signal processing technologies, active noise control (ANC) and three-dimensional (3D) audio, to ... -
Nonstationary Vibration of a Fully Flexible Parallel Kinematic Machine
(The American Society of Mechanical Engineers (ASME), 2007)This paper studies the problem of the nonstationary vibration of a fully flexible parallel kinematic machine (PKM) that has flexibilities both in links and in joints. In the stationary case, ... -
Piezoelectric Networks for Vibration Suppression of Mistuned Bladed Disks
(The American Society of Mechanical Engineers (ASME), 2007)Extensive investigations have been conducted to study the vibration localization phenomenon and the excessive forced response that can be caused by mistuning in bladed disks. Most previous ... -
An Optimal Sensitivity-Enhancing Feedback Control Approach via Eigenstructure Assignment for Structural Damage Identification
(The American Society of Mechanical Engineers (ASME), 2007)The concept of using sensitivity-enhancing feedback control to improve the performance of frequency-shift-based structural damage identification has been recently explored. In previous studies, ... -
Random Response Relationships to Transfer Function and State-Space Properties
(The American Society of Mechanical Engineers (ASME), 2007)Output variables of dynamic systems subject to random inputs are often quantified by mean-square calculations. Computationally for linear systems, these typically involve integration of the output ...