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RISRevisiting Forced Convection Flow Through a Porous Medium Saturated Channel Using Singular Perturbation Analysis
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accounting for the fact that thermal conductivity of fluid is much less than the thermal conductivity of solid in most of the porous medium-related applications, this study applies perturbation approach in analyzing forced ...
Effect of the Aero-Engine Mounting Stiffness on the Whole Engine Coupling Vibration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A finite element (FE) model of the rotor tester of an aero-engine, having a thin-walled casing structure, mounted with the way of an actual engine, is developed to simulate the intrinsic vibration characteristics under ...
Simulation Analysis of Casing Vibration Response and Its Verification Under Blade–Casing Rubbing Fault
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new rotor–stator rubbing model considering the blade–casing rubbing fault is put forward in this paper. The model couples the rotor together with its suspension (ball or roller bearings), the disk, the (multiple) ...
Asynchronous Vibration Response Characteristics of Aero Engine With Support Looseness Fault
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the mechanism of the asynchronous vibration response phenomenon caused by the looseness fault in the aeroengine whole vibration system is investigated by numerical integration methods. A single degreeoffreedom ...
Gravitational Character of Cold Surges during Winter MONEX
Publisher: American Meteorological Society
Abstract: The surface pressure, temperature, dew point and wind data over the South China Sea and vicinity during Winter MONEX are examined to determine the timing of the passage of cold surges at various reporting stations. It is ...
Evaluation of the Surface Prognoses of Cyclones and Anticyclones of the JMA and FNOC Models over East Asia and the Western Pacific during the 1983 Mei-Yu Season
Publisher: American Meteorological Society
Abstract: This study compares the systematic errors of 36-h surface cyclone and anticyclone forecasts for two operational numerical weather prediction models over East Asia and the western North Pacific Ocean: the U.S. Navy's ...
Sensitivity Analysis and Experimental Research on Ball Bearing Early Fault Diagnosis Based on Testing Signal From Casing
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The ball bearings of an aeroengine are key parts that frequently fail, and it is very important to effectively carry out fault diagnosis of the ball bearings. However, in the present research work, the ball bearing faults ...
Friction Induced, Self Excited Vibration of a Pantograph Catenary System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A dynamic model of a pantographcatenary system is established. In the model, motion of the pantograph is coupled with that of the catenary by friction. Stability of the pantographcatenary system is studied using the finite ...
The Development of an Intense East Asian Summer Monsoon Disturbance with Strong Vertical Coupling
Publisher: American Meteorological Society
Abstract: The East Asian summer monsoon (Mei-yu) disturbance of 17?25 June 1992 was the most intense 850-hPa low center of such systems during a 7-yr period. Due to the moisture fluxes associated with the southwesterlies from the ...
Compressive Behavior of CFRP-Confined Recycled Aggregate Concrete in Different-Sized Circular Sections
Publisher: American Society of Civil Engineers
Abstract: Structural applications of recycled aggregate concrete (RAC) have been rare in practice owing to its inferior strength and durability compared with natural aggregate concrete (NAC). Among the various methods attempted to ...