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A Methodology to Characterize Modal Damping in Vibrating Systems: Application to the Case of Gas Turbine Combustion Chambers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The present paper proposes a methodology to characterize the modal damping ratio as a function of frequency in vibrating systems, with a focus on gas turbine combustion chambers. Proposed methodology correlates the modal ...
Structural Analysis of a Small H Darrieus Wind Turbine Using Beam Models: Development and Assessment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present wind energy research, Darrieustype vertical axis wind turbines (VAWTs) are increasingly appreciated, especially in small installations. In particular, Hshaped turbines can provide attractive spaces for novel ...
An Efficient Quasi Three Dimensional Model of Tilting Pad Journal Bearing for Turbomachinery Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The constant increase of turbomachinery rotational speed has brought the design and the use of journal bearings to their very limits: tilting pad journal bearings (TPJBs) have been introduced for highspeed/highload ...
Efficient Models of Three Dimensional Tilting Pad Journal Bearings for the Study of the Interactions Between Rotor and Lubricant Supply Plant
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In many industrial applications, tilting pad journal bearings (TPJBs) are increasingly used because they are very suitable both for highspeed and high external loads. Their study is fundamental in rotating machines and a ...
Static and Modal Topology Optimization of Turbomachinery Components
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The need to be more and more competitive is pushing the complexity of aerodynamic and mechanical design of rotating machines at very high levels. New concepts are required to improve the current machine performances from ...
An Efficient Iterative Coupled Model for the Study of the Insurgence of the Morton Effect in Tilting Pad Journal Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The introduction of the tilting pad journal bearing (TPJB) technology has allowed the achievement of important goals regarding turbomachinery efficiency in terms of high peripheral speed, enhanced power density, higher ...