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RISAnalytical Characterization of the Unique Properties of Planetary Gear Free Vibration
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work develops an analytical model of planetary gears and uses it to investigate their natural frequencies and vibration modes. The model admits three planar degrees of freedom for each ...
Measuring Spatial Structure of China’s Megaregions
Publisher: American Society of Civil Engineers
Abstract: Reflecting upon China’s current path of regional urbanization, this research studies the polycentric structure of China’s megaregions. It defines the concept and measurement for megaregional polycentricity and utilizes the ...
Slip-Line Solution to Earth Pressure of Narrow Backfill against Retaining Walls on Yielding Foundations
Publisher: ASCE
Abstract: When a retaining wall is adjacent to a natural slope, the overturning of the wall is usually caused by a yielding foundation. At the point of overturning, the narrow backfill behind the wall has reached the active limit ...
Mesh Stiffness Variation Instabilities in Two-Stage Gear Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mesh stiffness variation, the change in stiffness of meshing teeth as the number of teeth in contact changes, causes parametric instabilities and severe vibration in gear systems. The operating ...
Active Earth Pressure against Inverted T-Type Retaining Walls under Translation Mode
Publisher: ASCE
Abstract: Inverted T-type retaining walls are widely used in civil engineering. Classic earth pressure theories cannot accurately predict the failure mechanism of soils behind inverted T-type retaining walls. Under wall translation ...
Active Earth Pressure of Narrow Backfill on Inverted T-Type Retaining Walls under Translation Mode
Publisher: ASCE
Abstract: It is well known that there are multiple sliding surfaces behind inverted T-type retaining walls and that reflective sliding surfaces may develop in narrow backfill. Combined with numerical analysis, this paper establishes ...
A Vibration Diagnosis Approach to Structural Fault
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper the sensitivity of structural vibration parameters to fault is analyzed. The frequency response function, which is sensitive to structural fault and able to reflect structural ...
Active Earth Pressure of Narrow Cohesionless Backfill on Inclined Rigid Retaining Walls Rotating about the Bottom
Publisher: ASCE
Abstract: In engineering constructions, the backfill behind retaining walls is usually narrow, and its boundary conditions are asymmetric due to the space limitation. When the retaining wall rotates about the bottom, the direction ...
Effect of Mn Substitution on the Structure and Hydrogen Storage Properties of La0.75Ce0.25Ni5−xMnx Alloy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, La0.75Ce0.25Ni5−xMnx (x = 0, 0.1, 0.2, 0.3) alloys were prepared by vacuum arc melting. The effect of the addition of Mn on the alloy microstructure and hydrogen absorption/desorption properties were explored ...
Effect of Mn Substitution on the Structure and Hydrogen Storage Properties of La0.75Ce0.25Ni5−xMnx Alloy
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, La0.75Ce0.25Ni5−xMnx (x = 0, 0.1, 0.2, 0.3) alloys were prepared by vacuum arc melting. The effect of the addition of Mn on the alloy microstructure and hydrogen absorption/desorption properties were explored ...