Results 211 to 220 of about 3,164 (256)

Experiment on the characteristics of torsional vibration of rotor-to-stator rub in turbomachinery

Tribology International, 2000
Abstract By use of the DK-II torsional vibration measuring system, the characteristics of torsional vibration of a rotor with rotor-to-stator rub are studied. It can be concluded that the measured natural torsional frequency (frub) with rub is higher than the one (fori) without rub.
Huang Diangui
exaly   +2 more sources

Torsional vibration characteristics of a power-split hybrid system

International Journal of Electric and Hybrid Vehicles, 2013
A torsional vibration dynamic model is built to predict the torsional vibration characteristics of a power–split hybrid system. On the basis of this dynamic model, the system dynamic equations of hybrid driveline are set, from which the natural frequencies and relevant mode shapes under different driving modes are solved using the corresponding ...
Tang Xiaopeng, Jianwu Zhang
exaly   +2 more sources

Molecular dynamics study of the torsional vibration characteristics of boron-nitride nanotubes

Physics Letters, Section A: General, Atomic and Solid State Physics, 2014
Abstract In recent years, synthesizing inorganic nanostructures such as boron nitride nanotubes (BNNTs) has led to extensive studies on their exceptional properties. In this study, the torsional vibration behavior of boron-nitride nanotubes (BNNTs) is explored on the basis of molecular dynamics (MD) simulation.
Shahram Ajori, Reza Ansari
exaly   +2 more sources

Analysis of vibration characteristics and adaptive continuous perturbation control of some torsional vibration system with backlash

Chaos, Solitons and Fractals, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Liu, Shuang, Ai, Hongling, Lin, Zhenjun, Meng, Zong   +3 more
exaly   +2 more sources

Vibration characteristics of piezoelectric torsional transducers

Journal of Sound and Vibration, 2003
Abstract The vibrational characteristics of Langevin–type torsional transducers, which consist of two piezoelectric torsional disks and two elastic blocks, are studied theoretically and experimentally in this paper. The differential equations of piezoelectric torsional motions are derived in terms of the circumferential displacement and the electric ...
Jin O. Kim, Oh Soo Kwon
openaire   +1 more source

Sensitivity of rotor blade vibration characteristics to torsional oscillations

14th Structures, Structural Dynamics, and Materials Conference, 1973
A theoretical investigation of dynamic response characteristics of helicopter rotor blades in forward flight was carried out with special emphasis on the torsional degrees-of-freedom. The finite element method was applied in the formulation of the coupled equations of motion for flapwise bending and torsion for blades with non-collinear elastic, mass ...
Theodore Bratanow, Akin Ecer
openaire   +1 more source

Radial and torsional vibration characteristics of a rub rotor

Nonlinear Dynamics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lu, Wenxiu, Chu, Fulei
openaire   +1 more source

Study on torsional vibration characteristics of conical horn

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011
The realization of torsional vibration by conical horn has more valuable application in project than by exponential horn and stepped horn. The wave equation of torsional wave propagating in the conical horn is analyzed based on one-dimensional wave theory, and the obtained wave equation is a standard Bessel equation.
Jianxin Zheng, Jie Han, Chuanshao Liu
openaire   +1 more source

Characteristics of torsional vibrations of a shaft with unbalance

Journal of Sound and Vibration, 2007
The aim of this paper is to study the characteristics of torsional vibration of a rotor with unbalance by numerical simulation. It can be concluded that synchronous torsional vibration accompanying with small higher harmonic components are excited, except when the speed of rotation is near, or equal to, half the natural frequency of torsional vibration,
openaire   +1 more source

Inherent Characteristic Analysis for Torsional Vibration of a Planetary Transmission

Advanced Materials Research, 2013
A torsional vibration mechanical model of the transmission system of a certain cetarpillar vehicle is established using mass distribution method. The torsional vibration model, containing multi-stage simple and compound planetary gear transmissions, fixed-axis transmission and power split/converge system, is established based on Lagrange Equation ...
Yang Yang, Yan Xiao Fu, Liang Yi Cui, Xiang Yang Xu   +3 more
openaire   +1 more source