Journal of Vibration and Acoustics: Recent submissions
Now showing items 1961-1980 of 3913
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Energy Conserving Equations of Motion for Gear Systems
(The American Society of Mechanical Engineers (ASME), 2005)A system of two meshing gears exhibits a stiffness that varies with the number of teeth in instantaneous contact and the location of the corresponding contact points. A classical Newtonian ... -
Transient Vibration Analysis of a Pinned Beam With Transverse Magnetic Fields and Thermal Loads
(The American Society of Mechanical Engineers (ASME), 2005)The research investigates the transient vibrations of a pinned beam with transverse magnetic fields and thermal loads. The equation of motion is derived by the Hamilton’s principal, and the ... -
Active Vibration Isolation of Metrology Frames; A Modal Decoupled Control Design
(The American Society of Mechanical Engineers (ASME), 2005)For a six degree-of-freedom active vibration isolation system, a control strategy based on modal decoupling is proposed. This has the advantage of controlling the modal directions on a centralized ... -
Reduction of Noise Effects for In Situ Balancing of Rotors
(The American Society of Mechanical Engineers (ASME), 2005) -
Numerical Study of Some Nonlinear Dynamics of a Rotor Supported on a Three-Pad Tilting Pad Journal Bearing (TPJB)
(The American Society of Mechanical Engineers (ASME), 2005)The use of tilting pad journal bearings (TPJBs) has increased in the recent past due to their stabilizing effects on the rotor bearing system. However, in this paper two mechanisms capable ... -
Statistical Analysis of the Dynamic Mean Excitation for a Spur Gear
(The American Society of Mechanical Engineers (ASME), 2005)An innovative statistical methodology and generic expressions have been developed for the ratio of the dynamic mean excitation to the transmitted mean load under the influence of the important ... -
Numerical and Experimental Investigations on Flexible Multi-bearing Rotor Dynamics
(The American Society of Mechanical Engineers (ASME), 2005)An experimental test rig is built to verify the dynamics of a multi-bearing rotor. It consists of two flexibly coupled shafts and is connected to a motor at one end via a flexible coupling. ... -
SMA Hybrid Composites for Dynamic Response Abatement Applications
(The American Society of Mechanical Engineers (ASME), 2005)A recently developed constitutive model and a finite element formulation for predicting the thermomechanical response of shape memory alloy hybrid composite (SMAHC) structures are briefly described. ... -
General Interpolated Fast Fourier Transform: A New Tool for Diagnosing Large Rotating Machinery
(The American Society of Mechanical Engineers (ASME), 2005)Vibration monitoring and diagnosis of rotating machinery is an important part of a predictive maintenance program to reduce operating and maintenance costs. In order to improve the efficiency ... -
Nonlinear Analysis on Hunting Stability for High-Speed Railway Vehicle Trucks on Curved Tracks
(The American Society of Mechanical Engineers (ASME), 2005)Based on the heuristic nonlinear creep model, the nonlinear coupled differential equations of the motion of a ten-degree-of-freedom truck system, considering the lateral displacement, the vertical ... -
Extending Den Hartog’s Vibration Absorber Technique to Multi-Degree-of-Freedom Systems
(The American Society of Mechanical Engineers (ASME), 2005)The most common method to design tuned dynamic vibration absorbers is still that of Den Hartog, based on the principle of invariant points. However, this method is optimal only when attaching ... -
Effect of Material Coupling on Wave Vibration of Composite Timoshenko Beams
(The American Society of Mechanical Engineers (ASME), 2005)This paper presents the effect of coupling between bending and torsional deformations on vibrations of composite Timoshenko beams from the wave standpoint. The dispersion characteristics and the ... -
Convergence Behaviors of Reduced-Order Models For Frictional Contacts
(The American Society of Mechanical Engineers (ASME), 2005)Numerical models to simulate interface behavior of friction connections under cyclic loading are investigated. The question of validity of lower-order models in successfully capturing response of ... -
Analysis of Static Deformation, Vibration and Active Damping of Cylindrical Composite Shells with Piezoelectric Shear Actuators
(The American Society of Mechanical Engineers (ASME), 2005)An analytical solution is presented for the static deformation and steady-state vibration of simply supported hybrid cylindrical shells consisting of fiber-reinforced layers with embedded piezoelectric ... -
Hopf Bifurcation of a Magnetic Bearing System with Time Delay
(The American Society of Mechanical Engineers (ASME), 2005)This paper is concerned with a study of the influence of a time delay occurring in a PD feedback control on the dynamic stability of a rotor suspended by magnetic bearings. In the presence ... -
Wave Reflection and Transmission in Timoshenko Beams and Wave Analysis of Timoshenko Beam Structures
(The American Society of Mechanical Engineers (ASME), 2005)This paper concerns wave reflection, transmission, and propagation in Timoshenko beams together with wave analysis of vibrations in Timoshenko beam structures. The transmission and reflection ... -
Nonlinear Vibrations of an Inclined Cable
(The American Society of Mechanical Engineers (ASME), 2005)The goal of this experimental and theoretical study is to highlight the nonlinear dynamic behavior of an inclined cable consisting of a steel wire surrounded by copper wire. Measurements around ... -
An Advanced Strategy for Detecting Impulses in Mechanical Signals
(The American Society of Mechanical Engineers (ASME), 2005)The appearance of overlapping in the results derived by continuous wavelet transform (CWT) smears the spectral features and makes the results difficult to interpret. This will significantly affect ... -
A Temperature-based Controller for a Shape Memory Alloy Actuator
(The American Society of Mechanical Engineers (ASME), 2005)This paper presents a robust nonlinear control that uses a state variable estimator for control of a single degree of freedom rotary manipulator actuated by shape memory alloy (SMA) wire. A ... -
Simulating and Measuring Structural Intensity Fields in Plates Induced by Spatially and Temporally Random Excitation
(The American Society of Mechanical Engineers (ASME), 2005)The structure-borne power in bending waves is well understood, and has been studied by many investigators in ideal beam and plate structures. All studies to date, however, have considered only ...