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RISThe Effect of Oil Droplet on the Lubrication Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Oil–air lubrication is widely used in the highspeed rotary machines; the oil is usually in the form of discrete droplets. The lubrication behavior of the oil droplet is rarely investigated. This paper investigates the ...
An Evolutionary Soft-Add Topology Optimization Method for Synthesis of Compliant Mechanisms With Maximum Output Displacement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents an evolutionary soft-add topology optimization method for synthesis of compliant mechanisms. Unlike the traditional hard-kill or soft-kill approaches, a soft-add scheme is proposed in this study where ...
A New Method for Eyring Shear-Thinning Models in Elliptical Contacts Thermal Elastohydrodynamic Lubrication
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new method for solving the shear stress and the effective viscosity of Eyring shear-thinning fluid in thermal elastohydrodynamic lubrication (EHL) was proposed and applied to two models. Model 1 is the thermal EHL model ...
Impact of Oil Supply Conditions on Water Lubrication Assisted With Minimal Secondary Lubricating Medium
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Previous research has revealed that introducing a secondary lubricating medium can temporarily enhance water-lubricated bearing performance, thereby reducing the risk of lubrication failure under challenging conditions. ...
A Review of Testing and Suppression Strategies for Electrically Induced Failure in Rolling Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Bearing voltages damage bearing surfaces and lead to early failure, particularly in motors powered by inverter-driven systems. With the growing adoption of electric vehicles, the operating conditions of their ...
Study on Tribological Performance of Enhancing Water Lubrication by Environmentally Friendly Lubricating Oil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. This study focuses on the film-forming characteristics of the secondary lubricating medium in a water environment under different working conditions, and the roller-on-disc lubrication film test rig, along with ...
Effect of Laser Parameters on Microstructure and Fracture Properties of Repaired Cracks with Micro/Nano Material Addition
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Compact tension specimens with prefabricated cracks are repaired by laser with micro/nano materials added at the crack tip. Different combinations of laser parameters, i.e., laser power, laser spot diameter and heating ...
Analysis of the Film-Forming Characteristics of Water Lubrication Assisted by Small Amount of Secondary Lubricating Oil
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This study investigates the film formation mechanism of lubrication using a small quantity of lubricating medium in a water environment. A roller-on-disc test rig combined with a fluorescent technique is employed to directly ...
Characteristics of Microseismicity during Breakthrough in Deep Tunnels: Case Study of Jinping-II Hydropower Station in China
Publisher: ASCE
Abstract: Rockbursts are a common form of disaster that occur during the construction of deep tunnels in hard rock. This is especially the case in the breakthrough stage of excavation, when even more attention should be paid to the ...