Journal of Vibration and Acoustics: Recent submissions
Now showing items 1281-1300 of 3913
-
Reliable and Evolvable Vibration Suppression by Self-Powered Digital Vibration Control
(The American Society of Mechanical Engineers (ASME), 2012)A reliable and evolvable vibration suppression technique using a digital processor powered by energy harvested from a piezoelectric element was developed and investigated. This technique, called ... -
Structural Damping Identification for Mistuned Bladed Disks and Blisks
(The American Society of Mechanical Engineers (ASME), 2012)To accurately predict the dynamics of most structures, a representation of damping must be used. This paper focuses on structural damping and the identification of structural damping for complex ... -
Active Vibration Control of Beams by Combining Precompressed Layer Damping and ACLD Treatment: Performance Comparison of Various Robust Control Techniques
(The American Society of Mechanical Engineers (ASME), 2012)It is a well known fact that system parameters of the flexible structures keep on changing due to several reasons. Ordinary controllers lose their effectiveness in changed situations and do ... -
A Squeeze-Flow Mode Magnetorheological Mount: Design, Modeling, and Experimental Evaluation
(The American Society of Mechanical Engineers (ASME), 2012)This paper presents a dual-mode magnetorheological (MR) fluid mount. Combining the fluid’s flow and squeeze modes of operation gives this MR mount a unique possibility for varying dynamic stiffness ... -
Active Damping of Nonlinear Vibrations of Functionally Graded Laminated Composite Plates using Vertically/Obliquely Reinforced 1-3 Piezoelectric Composite
(The American Society of Mechanical Engineers (ASME), 2012)This paper deals with a study on the active constrained layer damping (ACLD) of geometrically nonlinear vibrations of functionally graded (FG) laminated composite plates. The constraining layer ... -
An Experimental Investigation of State-Variable Modal Decomposition for Modal Analysis
(The American Society of Mechanical Engineers (ASME), 2012)This work presents the experimental evaluation of the state-variable modal decomposition method for a modal parameter estimation of multidegree-of-freedom and continuous vibration systems. Using ... -
Phase Space Feature Based on Independent Component Analysis for Machine Health Diagnosis
(The American Society of Mechanical Engineers (ASME), 2012)This paper proposes a new feature extraction method based on Independent Component Analysis (ICA) and reconstructed phase space. The ICA-based phase space feature unifies the system dynamics ... -
Wave Analysis of In-Plane Vibrations of L-Shaped and Portal Planar Frame Structures
(The American Society of Mechanical Engineers (ASME), 2012)This paper concerns in-plane vibration analysis of coupled bending and longitudinal vibrations in L-shaped and portal planar frame structures. An exact analytical solution is obtained using wave ... -
Vibration Analysis of a Self-Excited Vibration in a Rotor System Caused by a Ball Balancer
(The American Society of Mechanical Engineers (ASME), 2012)The ball balancer has been used as a vibration suppression device in rotor systems. It has a superior characteristic that the vibration amplitude is reduced to zero theoretically at a rotational ... -
Optimal Parameters and Characteristics of a Three Degree of Freedom Dynamic Vibration Absorber
(The American Society of Mechanical Engineers (ASME), 2012)The present study is devoted to the determination of the optimal parameters and characteristics of a three degree of freedom dynamic vibration absorber (3 DOF DVA) for the vibration reduction ... -
Fully Coupled Finite-Element Modeling of Active Sandwich Panels With Poroelastic Core
(The American Society of Mechanical Engineers (ASME), 2012)Active sandwich panels are an example of smart noise attenuators and a realization of hybrid active-passive approach for the problem of broadband noise reduction. The panels are composed of ... -
Efficiency Improvement of an Automatic Ball Balancer
(The American Society of Mechanical Engineers (ASME), 2012)An automatic ball balancer is a unique vibration suppression device for rotor systems. Theoretically, two balls in a cylindrical chamber of the rotor are located at the optimal positions on ... -
Investigation of Period-Doubling Islands in Milling With Simultaneously Engaged Helical Flutes
(The American Society of Mechanical Engineers (ASME), 2012)This paper investigates the stability of a milling process with simultaneously engaged flutes using the state-space TFEA and Chebyshev collocation methods. In contrast to prior works, multiple ... -
Vibration Reduction Index of a T-Junction With a Flexible Interlayer
(The American Society of Mechanical Engineers (ASME), 2012)This paper describes the procedure followed to evaluate the vibration reduction index for T-junctions with inserted flexible elements and proposes new equations to complement the standard EN ... -
Two Algorithms for Mass Normalizing Mode Shapes From Impact Excited Continuous-Scan Laser Doppler Vibrometry
(The American Society of Mechanical Engineers (ASME), 2012)Continuous-scan laser Doppler vibrometry (CSLDV), a concept where a vibrometer measures the motion of a structure as the laser measurement point sweeps over the structure, has proven to be an ... -
Extreme-Value-Based Statistical Bounding of Low, Mid, and High Frequency Responses of a Forced Plate With Random Boundary Conditions
(The American Society of Mechanical Engineers (ASME), 2012)The problem of statistically bounding the response of an engineering structure with random boundary conditions is addressed across the entire frequency range: from the low, through the mid, to ... -
Quadratic Mode Shape Components From Ground Vibration Testing
(The American Society of Mechanical Engineers (ASME), 2012)Points on a vibrating structure generally move along curved paths rather than straight lines. For example, the tip of a cantilever beam vibrating in a bending mode experiences axial displacement ... -
A Novel Active Online Electromagnetic Balancing Method—Principle and Structure Analysis
(The American Society of Mechanical Engineers (ASME), 2012)Vibrations caused by the imbalance of a rotor are a frequently encountered problem in machining processes. Especially in high-precision finishing, the workpiece quality is strongly related to the ... -
Genetic Algorithm Optimization on a Venting System With Three-Chamber Hybrid Mufflers Within a Constrained Back Pressure and Space
(The American Society of Mechanical Engineers (ASME), 2012)Recently, research on new techniques for dissipative mufflers in dealing with the higher frequencies has been addressed. However, the shape optimization of hybrid mufflers in reducing broadband ... -
Specified Motion of Piezoelectrically Actuated Structures
(The American Society of Mechanical Engineers (ASME), 2012)The problem considered is that of solving for the control input that generates partly specified motion of a deformable structure with distributed piezoelectric actuation. The motion constraint, ...