Results 21 to 30 of about 2,979 (234)
Using parent metaphors for learning about the neonatal care experience: an interpretive perspective [PDF]
, 2019 © 2019 The Author(s). The final, definitive version of this paper has been published in Journal of Child Health Care by Sage Publications Ltd. All rights reserved.
Anderson C +8 more
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Penggunaan Jerk Untuk Deteksi Dini Kerusakan Bantalan Gelinding Dan Pemantauan Kondisi Pelumasan [PDF]
, 2011 This paper describes the use of jerk signal, a signal obtained from differentiation of the acceleration signal with respect to time, for detecting the early damage of a bearing and bad lubrication conditions.
Abidin, Z. (Zainal), Heryadi, B. (Budi)
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Optimization Analysis of Meshing Worm Drive Structure with Roller Enveloping Ring Surface
Journal of Physics: Conference Series, 2023 Abstract Based on the meshing theory of the worm drive with the roller enveloping ring surface and the mathematical model of transmission efficiency of transmission mechanism, the mathematical calculation model of transmission efficiency for simultaneous meshing of multiple teeth has been set up; the geometrical parameters of ...
Huan Lui, Geng Huang
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A new methodology for fault detection in rolling element bearings using singular spectrum analysis [PDF]
, 2017 In this study, a new methodology for fault detection in rolling element bearings is proposed, which is based on singular spectrum analysis (SSA). The main idea of the methodology is to build a baseline space from the feature vectors corresponding to the ...
Al-Bugharbee, H, Trendafilova, I
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Theoretical Research of Roller Enveloping the Side-worm Gear Pairs Drive
DEStech Transactions on Engineering and Technology Research, 2017 Roller enveloping the side-worm gear pairs drive is proposed basing on roller enveloping hourglass worm drive. Roller enveloping the side-worm gear pairs drive means to assembling the roller on the end surface of the worm wheel equally. The hourglass worm tooth surface equation can be deduced by applying spatial meshing theory and differential geometry
Hao Rong +4 more
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Engineering Applications of Computational Fluid Mechanics, 2020 This paper presents a study to investigate the effects of the shape of rollers in high precision enveloping speed reducer on the reducer’s lubrication performance. Theoretical models for the precision speed reducer with cylindrical and conical rollers as
Xingqiao Deng +3 more
doaj +1 more source
Chinese Journal of Mechanical Engineering, 2020 In gear transmission, temperature rise has a non-negligible impact on the accuracy, noise and transmission efficiency. However, there is no relevant research on the temperature rise of the anti-backlash single-roller enveloping hourglass worm (ASEHW ...
Shisong Wang +3 more
doaj +1 more source
Salvador Dalí's Dream of Venus at the 1939 New York world's fair: capitalist funhouse or surrealist landmark? [PDF]
, 2011 For the 1939 World’s Fair in Flushing Meadows Corona Park, New York, Salvador Dalí created a surrealist funhouse called Dream of Venus. This installation, which included sound and performance, aimed at a controversial sensation, a truly surreal ...
Stalpaert, Christel
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Influence of Roughness on Isothermal Elastohydrodynamic Lubrication of Roller Enveloped Worm Drive
Jixie chuandong, 2022 Based on the meshing principle of the roller enveloped end face worm drive pair， the influence of the center distance， the roller radius， the throat coefficient， and the worm gear diameter are considered comprehensively. According to the elastohydrodynamic lubrication theory， the Newton iteration method is used in Matlab.
Yan Qi +4 more
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Journal of Physics: Conference Series, 2023 Abstract To grasp thermal elastohydrodynamic lubrication (TEHL) characteristics of the conjugating tooth-pairs of inclined double-roller enveloping hourglass worm drive in transmission process. The numerical solutions of line contact thermal EHL were obtained based on meshing theory of this worm drive and the theory of EHL. The TEHL line
Jinkuan Li, Yujie Wen, Zaixin Liu
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