Results 231 to 240 of about 3,164 (256)
Some of the next articles are maybe not open access.
Effect of Torsion on Stability, Dynamic Forces, and Vibration Characteristics in Drillstrings
Journal of Energy Resources Technology, 1997Traditionally, the analysis of stability in drillstrings is based on longitudinal vibrations only. However, field experience indicates the presence of torsional effects in the form of modulations in longitudinal vibrations. Moreover, torsional dynamic forces are significant and lead to joint problems during drilling.
M. A. Elsayed +2 more
openaire +1 more source
Rotational speed oscillation characteristic and decomposition algorithm of torsional vibration
2008 7th World Congress on Intelligent Control and Automation, 2008For analysing the torsional vibration characteristic of rotary mechanical drive system, a new highly active calculation decomposition algorithm was proposed by using series decoupled method. When the elastic driving shaft and motor shaft had speed oscillation, the decomposition algorithm could develop nonlinear differential equation into a series of ...
null Bin Liu +2 more
openaire +1 more source
Torsional vibration transmissibility characteristics of reinforced viscoelastic flexible pipes
Journal of Sound and Vibration, 1988The dynamic complex shear moduli of fibre and steel reinforced viscoelastic flexible pipes are determined by using a torsional non-resonance method. Material property master curves as a function of frequency and temperature are obtained by using reduced modulus methods.
I. Kennedy, G.R. Tomlinson
openaire +1 more source
SAE Technical Paper Series, 1995
<div class="htmlview paragraph">The unknown characteristics of the bending vibration coupled with torsional vibration (hereafter called“coupled torsional, bending vibration”) are investigated from the experimental and analytical viewpoints. The torsional and bending vibration stresses of the crankshafts of a 6 cylinder, in - line engine and an 8 ...
Katsuhiko Wakabayashi +3 more
openaire +1 more source
<div class="htmlview paragraph">The unknown characteristics of the bending vibration coupled with torsional vibration (hereafter called“coupled torsional, bending vibration”) are investigated from the experimental and analytical viewpoints. The torsional and bending vibration stresses of the crankshafts of a 6 cylinder, in - line engine and an 8 ...
Katsuhiko Wakabayashi +3 more
openaire +1 more source
Mechanics of Advanced Materials and Structures, 2018
In this paper, the torsional vibration characteristics of the high-speed and high-power reciprocating compressor shafting is investigated based on the modal superposition method (MSM) and the sensi...
Jian Liu +3 more
openaire +1 more source
In this paper, the torsional vibration characteristics of the high-speed and high-power reciprocating compressor shafting is investigated based on the modal superposition method (MSM) and the sensi...
Jian Liu +3 more
openaire +1 more source
FLEXURAL–TORSIONAL COUPLING EFFECT ON VIBRATIONAL CHARACTERISTICS OF ANGLE-PLY LAMINATES
Journal of Sound and Vibration, 1998Abstract A mainly experimental investigation is presented on the vibrational characteristics of angle-ply laminate made of carbon/epoxy composite material, considering the effect of flexural–torsional coupling stiffness. This consists of a resonance test on a cantilevered laminated plate model by using laser holographic interferometry.
T. Maeda, V. Baburaj, Y. Ito, T. Koga
openaire +1 more source
Free torsional vibration characteristics of compound planetary gear sets
Mechanism and Machine Theory, 2001A family of torsional dynamic models of compound gear sets is developed to predict the free vibration characteristics under different kinematic configurations resulting in different speed ratios. The compound gear sets considered consist of two planes of single- or double-planet gear sets connected by a straight long planet.
openaire +2 more sources
Study on Torsional Vibration Response Characteristics of Marine Propulsion Shafting
Journal of Ship Research_ The paper establishes the lumped parameter vibration mathematical model of shafting and uses the system matrix method to calculate and analyze steady-state frequency domain vibration characteristics of the shaft system in the range of diesel engine speed.
Nengqi Xiao +4 more
openaire +1 more source
Characteristic Frequencies and Mode Shapes for TurboGenerator Shaft Torsional Vibrations
IEEE Transactions on Power Apparatus and Systems, 1980Fundamental to the study of turbogenerator shaft torsional vibrations, as occur in subsynchronous resonance and high speed reclosing, is the calculation of the characteristic frequencies and associated mode shapes of the vibrations. A calculation procedure is discussed which is based on distributed ed system concepts and does not require matrix ...
openaire +1 more source
Study on Torsional Vibration Characteristics of Wind Turbine Drive Train
2022 5th International Conference on Energy, Electrical and Power Engineering (CEEPE), 2022Cai Jionghui +3 more
openaire +1 more source