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Chapter and Conference Paper
Influence of Slight Gravitational Effect on the Characteristics of Onset Speeds of Instability and Stability in the Vertical Rotating Shaft Supported by Journal Bearing
In rotating machinery such as vertical pumps supported vertically by sliding bearings, it is difficult to predict the dynamic characteristics because of the strong influence of the nonlinearity of the sliding ...
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Chapter and Conference Paper
Modeling of the Divergently Worn Annular Seal for the Two-Way Coupled Fluid–Structure Interaction Analysis of Shaft Vibration and Clearance Flow
One of the causes of shaft vibration in turbomachinery is the rotordynamic (RD) fluid force. RD fluid force has a significant impact on the stability of the system, so it is necessary to carry out shaft vibrat...
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Chapter and Conference Paper
Prediction of Instability in Rotating Shaft System with Casing by Operational Modal Analysis
In recent years, as rotating machinery has become smaller and more efficient, various types of shaft vibration have become problems. Therefore, to prevent failures of rotating machinery, there is a growing nee...
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Chapter and Conference Paper
Stability Analysis Based on Energy Balance of Motion of the Gyroscopic Exercise Tool
This paper deals with the motion of a gyroscopic exercise tool called as the ‘Power Ball’. This gyroscopic exercise tool, which is used to train the hand muscles utilizes a gyroscopic effect caused by a whirli...
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Chapter and Conference Paper
Three-Dimensional Simulation of Molecular Cloud Formation
Using three-dimensional magnetohydrodynamics simulation with the effects of radiative cooling/heating, chemical reactions, and thermal conduction, we investigate the formation of molecular cloud in the multi-p...
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Chapter and Conference Paper
Web Service Systems for Cooperative Work Support in Knowledge Creation Processes
The emergence of Web service results from the business needs as mentioned below. Web service as the evolution of software engineering is also required to explore the possibility of adapting to cooperative work...
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Chapter and Conference Paper
The equivariant whitehead torsions of equivariant homotopy equivalences between the unit spheres of representations of cyclic groups