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Vibrational characteristics of metalloporphyrins
2014The goal of this M.Phil. project is to study the vibrational and electronic properties of three types of metalloporphyrins (MP) in their ground electronic state by means of Fourier Transform (FT) Raman scattering and infrared absorption sprctroscopies and by vibrational analysis.
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Physical Characteristics of Vibration in Relation to Vibration-Induced White Finger
American Industrial Hygiene Association Journal, 1990Predicted and observed prevalences and latency periods of vibration-induced white finger (VWF) were examined among workers exposed to hand-arm vibration. The different physical characteristics of vibration--spectra and impulsiveness--were measured. The following groups of workers were included in the study: forest workers (n = 199), pedestal grinders ...
J, Starck, P, Jussi, P, Ilmari
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Influences of vibration form on the grinding characteristics of a vibration mill
Powder Technology, 1972Abstract After grinding tests of coal particles in a batch, vertically vibrating mill under such three different vibration forms as sine, deformed square and pulse, grinding by the use of the deformed square vibration was found to be most efficient if the required waveform can be obtained without great difficulties, granted that the energy ...
H. Iwata, T. Homma
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Vibration Characteristic Similarity Appraisal of Conticaster Vibration Table
Advanced Materials Research, 2012Measured vibration displacement data of conticaster vibration table at different casting speeds, use of "correlation" theory to evaluate the measured data. Get similarity change curve and oscillation amplitude change curve of the four measured points at different casting speeds.
Wen Zhi Yang +3 more
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Vibration characteristics of ultrasonic complex vibration for hole machining
AIP Conference Proceedings, 2012Complex vibration sources that use diagonal slits as a longitudinal-torsional vibration converter have been applied to ultrasonic motors, ultrasonic rock drilling, and ultrasonic welding. However, there are few examples of the application of these sources to ultrasonic machining in combination with an abrasive.
Takuya Asami, Hikaru Miura
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Effects of vibration characteristics on improvement of deployment repeatability by vibration
Aerospace Science and Technology, 2019Abstract A method of improving the positioning accuracy of deployable space structures using vibrations was developed, and its effectiveness was demonstrated. The effects of vibration characteristics on improvements to shape repeatability were investigated via experiments and numerical simulations.
Hiroaki Tanaka, Ryotaro Sakamoto
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Analysis of the Vibration Characteristic for an Orbital Friction Vibration Actuator
Applied Mechanics and Materials, 2013Orbital Friction Vibration Actuator (OFVA) is a core component of Orbital Friction Welding (OFW), which is a novel apertureless welding technology utilizing friction heat to implement solid-state. By taking advantage of the special electromagnetic structure, OFVA can produce a contactless, radial, synchronous and rotating force with adjustable ...
Yong Li +4 more
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Vibrational and Acoustic Characteristics
2006In many treatments of powder in industrial processes, mechanical vibration and sonic energy have been used to increase the efficiency of the operation, and to enhance the transport rates in various industrial operations such as emulsification, drying, and agglomeration.
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Experimental Research on the Vibration Characteristics of Flexural Vibration Disk
Advanced Materials Research, 2010The vibration characteristics of flexural vibration disk in ultrasonic vibration system are studied through experiments. The results show that the resonant frequency of flexural vibration disk reduces with the reducing of its thickness and the resonant frequency increases with the reducing of its diameter. When designing the ultrasonic vibration system,
Lin Zhu, Ji Yun Li
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Research on Vibration Characteristics of Horn with Longitudinal Bending Vibration
Applied Mechanics and Materials, 2014Based on the theory of the chute can achieve single excitation longitudinal and bending vibration, design chute horn with longitudinal bending vibration . Using finite element analysis method combined with experiment,research on vibration characteristics of horn with longitudinal bending vibration, obtained the resonance frequency and the amplitude of ...
Ying Niu +4 more
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