Results 261 to 270 of about 32,294 (305)

Radial and torsional vibration characteristics of a rub rotor

Nonlinear Dynamics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fulei Chu
exaly   +2 more sources

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.
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.
Reza Ansari, Shahram Ajori
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

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

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

Longitudinal and Torsional Vibration Characteristics of Boron Nitride Nanotubes

Journal of Vibration Engineering & Technologies, 2019
Boron nitride nanotubes (BNNTs) are new cousins of carbon nanotubes (CNTs), which alternately substitute boron and nitrogen atoms for carbon atoms entirely. Its excellent physical and chemical properties, such as excellent thermal stability, chemical inertness and strong acid corrosion resistance, make BNNTs products be favorable to machine, thus ...
J. W. Yan, J. B. He, L. H. Tong
openaire   +1 more source

Study on Torsional Vibration Characteristics of Cross Shaft Universal Coupling

Journal of Ship Research, 2020
In this work, the ship propulsion shaft system with cruciform universal coupling is studied. First, based on the analysis of the structure and characteristics of the cross-axis universal coupling, the motion relations and expressions between the components of the universal coupling are established by using the coordinate transformation method.
Nengqi Xiao, Xiang Xu, Ruiping Zhou, Baojia Chen   +3 more
openaire   +1 more source