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RISObservational Determination of Cloud Mass Flux Distributions
Publisher: American Meteorological Society
Abstract: Using Arakawa's spectral representation of cumulus convection, the cloud mass flux distributions and other cloud properties are diagnostically determined from large-scale observations. Observational data over the tropical ...
Response of Cumulus Updraft and Downdraft to GATE A/B-Scale Motion Systems
Publisher: American Meteorological Society
Abstract: Large-scale mass, heat and moisture budgets have been computed over the GATE A/B-scale area during two priority periods in Phase 3. The computed budget results are well-correlated with the activities of the cloud clusters ...
Nonlinear Vibration Prediction of a Highly Flexible Rotor Supported by an Axial Groove Journal Bearing Considering Journal Angular Whirling Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The difference in dynamic behavior of the rotor-bearing system supported by the bearing model that considers both lateral and angular whirling motions of the journal (model A), and the model that considers only lateral ...
Nonlinear Transient Analysis of Tilting Pad Journal Bearings Under Starved Lubrication
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Tilting pad journal bearings (TPJBs) have high vibration stability and are widely used in high-speed turbomachinery. In recent years, direct-lubricated TPJBs have been used to reduce bearing losses and bearing ...
Internal Resonance Phenomena of the Jeffcott Rotor With Nonlinear Spring Characteristics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Jeffcott rotor is a two-degree-of-freedom linear model with a disk at the midspan of a massless elastic shaft. This model, executing lateral whirling motions, has been widely used in the ...
Detection of a Rotor Crack Using a Harmonic Excitation and Nonlinear Vibration Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Detection of a rotor crack based on the nonlinear vibration diagnosis using harmonic excitation force is investigated. The open-close mechanism of crack is firstly modeled by a piecewise linear ...
Chaotic Vibration and Internal Resonance Phenomena in Rotor Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Rotating machinery has effects of gyroscopic moments, but most of them are small. Then, many kinds of rotor systems satisfy the relation of 1 to (−1) type internal resonance approximately. In ...
The Equation of State and the Temperature, Pressure, and Shear Dependence of Viscosity for a Highly Viscous Reference Liquid, Dipentaerythritol Hexaisononanoate
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Measurements are reported for dipentaerythritol hexaisononanoate (DiPEiC9) of pressure–volume–temperature (pVT) response to pressures to 400 MPa and temperatures to 100 °C, and of viscosity at pressures to 700 MPa and ...
Heat and Moisture Budget Analyses Using BOMEX Data
Publisher: American Meteorological Society
Abstract: Large-scale heat and moisture budgets over the tropical Atlantic Ocean are examined during Phase 3 (22?30 June 1969) of the Barbados Oceanographic and Meteorological Experiment (BOMEX). From the satellite cloud photographs ...
Relative Impacts of Snow and Sea Surface Temperature Anomalies on an Extreme Phase in the Winter Atmospheric Circulation
Publisher: American Meteorological Society
Abstract: In association with extreme anomalies in the extratropical atmosphere, numerical experiments using an atmospheric general circulation model are performed to investigate the relative impact of the anomalous snow with SST ...