Results 21 to 30 of about 669,241 (267)
Machines, 2022 Mechanical equipment that will not be reused is defined as disposable machinery. Disposable harmonic drives (HDs) are commonly used in the field of aerospace and are sensitive to payloads.
Yuxin Zhang +3 more
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Energies, 2022 The contact problem of a trochoidal gear is a drawback and a well-known performance indicator of a gerotor pump. Although numerical simulations aid in the evaluation of contact stress, the difficult task of determining geometrical parameters, operating ...
Pedro Javier Gamez-Montero +1 more
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Impact of different factors on contact stress of axle box bearing when considering axial load
机车电传动, 2023 As the axle assembly relationship of variable gauge bogie is clearance fit, in which the axle box bearing bears greater axial load compared with the traditional bogie axle box bearing, it is necessary to consider the impact of axial load on bearing ...
LI Zhihua +3 more
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Finite Element Analysis on Ultrasonic Drawing Process of Fine Titanium Wire
Metals, 2020 Ultrasonic drawing is a new technology to reduce the cross-section of a metallic tube, wire or rod by pulling through vibrating dies. The addition of ultrasound is beneficial for reducing the drawing force and enhancing the surface finish of the drawn ...
Shen Liu +3 more
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Frontiers in Mechanical Engineering, 2021 In this study, a method combining numerical surface generation technology and three-dimensional hot-line contact EHL is employed to evaluate the contact characteristics of micro-textured surfaces under high-load line contact.
Jiang Zhao +7 more
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MetalsConsidering the greater contact stress of turnout rails during wear and the development of heavy-haul railways, twin-disc sliding–rolling wear tests were performed on U75VH heat-treated rail steels applied for turnouts under high contact stress ranging ...
Ruimin Wang +5 more
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Analysis of the Influence of Contact Stress on the Fatigue of AD180 High-Carbon Semi-Steel Roll
MetalsIn this study, to investigate the problem of contact fatigue and the damage mechanism of an AD180 high-carbon semi-steel roll, rolling contact fatigue tests were conducted using specimens cut from the periphery of a roll ring.
Yaxing Liu +5 more
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada +6 more
wiley +1 more source
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo +5 more
wiley +1 more source
Research on Forced Friction and Wear of Guide Joint of Downhole Closed-Loop Controlled Bend Sub
Shiyou jixie, 2021 To study the influence of the contact stress, friction and wear of the steel ball in the raceway during the working process of the guide joint, according to the Hertz contact theory, MATLAB software is used to calculate the contact stress between the ...
Zhang Guangwei +3 more
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