Results 221 to 230 of about 3,164 (256)
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Longitudinal and Torsional Vibration Characteristics of Boron Nitride Nanotubes
Journal of Vibration Engineering & Technologies, 2019Boron 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
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Study on Torsional Vibration Characteristics of Cross Shaft Universal Coupling
Journal of Ship Research, 2020In 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 +3 more
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Torsional Free Vibration Characteristics of Hybrid Clinched Joints
2010 International Conference on Measuring Technology and Mechatronics Automation, 2010The aim of this study is to predict the torsional free vibration characteristics of single lap-jointed cantilevered hybrid clinched joints. The focus of the analysis is to reveal the influence on the natural frequencies, natural frequency ratios and mode shapes of single lap-jointed cantilevered hybrid clinched joints caused by variations in the ...
Xiaocong He, Shanfeng Gao, Wenbin Zhang
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Analysis on Torsional Vibration Characteristics of Tracked Vehicle Gearbox
Applied Mechanics and Materials, 2013According to the dynamic characteristics of tracked vehicle gearbox system, the integrated influence of elasticity of shaft, gear meshing stiffness and transmission error in the system is considered, and mathematics models of two type configurations are created, Matlab/Simulink model of which are provided.
Yi Cheng Xu +3 more
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Torsion and free vibration characteristics of turbogenerator end windings
Journal of Sound and Vibration, 1992Summary: Stator end windings of large turbogenerators are subjected to static and harmonic forces due to electromagnetic interaction of the electric currents in them. In this paper the free vibration characteristics of these end winding coils are analyzed by using a transfer matrix approach, with account taken of the flexural and torsional rigidities ...
Narayanan, S. +3 more
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SAE Technical Paper Series, 2009
<div class="htmlview paragraph">The working principle of dual mass flywheel - radial spring (DMF-RS) type torsional vibration damper was analyzed, and the design method of natural torsional vibration characteristics control of DMF-RS type torsional damper for automotive powertrains was studied herein.
Hu Jianjun +3 more
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<div class="htmlview paragraph">The working principle of dual mass flywheel - radial spring (DMF-RS) type torsional vibration damper was analyzed, and the design method of natural torsional vibration characteristics control of DMF-RS type torsional damper for automotive powertrains was studied herein.
Hu Jianjun +3 more
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Influence of Torsional Vibrations on the Photoluminescence Characteristics of Dye Solutions
Journal of Fluorescence, 1998The influence of torsional vibrations of fluorophore molecule on polarization spectra and absorption/emission vibronic band profiles of isotropic dye solutions has been considered. Basing on the concept of luminescence center (LC) and assuming that (1) electronic transitions in the LC may be assisted by torsion-vibrational excitations, and (2 ...
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Applied Mechanics and Materials, 2014
The tool’s unique movement trajectory in longitudinal and torsional ultrasonic machining technology can help chip extraction. Cutting liquid can offer good lubrication, cleaning and cooling. It also can prolong tool’s life, improve the processing quality and processing efficiency, so it is widely used in precision and ultra-precision machining.
Hong Bing Zhao, Xue Hong Shen
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The tool’s unique movement trajectory in longitudinal and torsional ultrasonic machining technology can help chip extraction. Cutting liquid can offer good lubrication, cleaning and cooling. It also can prolong tool’s life, improve the processing quality and processing efficiency, so it is widely used in precision and ultra-precision machining.
Hong Bing Zhao, Xue Hong Shen
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Analysis on Torsional Vibration Characteristics of Steam Turbine Generator Shafts
Advanced Materials Research, 2011This article introduced the four-terminal network method, Riccati transfer matrix method and finite element method respectively, and the applications of three methods in inherent characteristics analysis of turbine generator units’ torsional vibration. Considering an actual case of 600 MW units in one power, the natural frequencies and normal vibration
Tian Xiao Wang, Cheng Bing He, Di Jiang
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Characteristics of Torsional Vibrations of a Shaft System with Parallel Misalignment
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2005Couplings are important parts in the movement of a shaft system. A coupling can transfer the torque from one shaft to another through deforming itself. If parallel misalignment exists, the couplings will produce an extra deformation besides the deformation produced by transferring the torque.
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