Results 31 to 40 of about 2,948 (233)

Thermal Elastohydronamic Lubrication Characteristics of Inclined Double-roller Enveloping Hourglass Worm Drive

open access: yesJournal 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
openaire   +1 more source

Theoretical Research of Roller Enveloping the Side-worm Gear Pairs Drive

open access: yesDEStech 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
openaire   +2 more sources

An automated procedure for detection and identification of ball bearing damage using multivariate statistics and pattern recognition [PDF]

open access: yes, 2010
This paper suggests an automated approach for fault detection and classification in roller bearings, which is based on pattern recognition and principal components analysis of the measured vibration signals.
Trendafilova, I.
core   +1 more source

Simulation and experimental study of influences of shape of roller on the lubrication performance of precision speed reducer

open access: yesEngineering 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

Temperature Field Simulation and Experimental Study of Anti-backlash Single-Roller Enveloping Hourglass Worm Gear

open access: yesChinese 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

Penggunaan Jerk Untuk Deteksi Dini Kerusakan Bantalan Gelinding Dan Pemantauan Kondisi Pelumasan [PDF]

open access: yes, 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)
core   +1 more source

A new methodology for fault detection in rolling element bearings using singular spectrum analysis [PDF]

open access: yes, 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
core   +1 more source

Detection of Natural Crack in Wind Turbine Gearbox [PDF]

open access: yes, 2017
This document is the Accepted Manuscript version of the following article: Suliman Shanbr, Faris Elasha, Mohamed Elforjani, and Joao Teixeira, ‘Detection of natural crack in wind turbine gearbox’, Renewable Energy, vol. 118: 172-179, October 2017.
Elasha, Faris   +3 more
core   +4 more sources

Salvador Dalí's Dream of Venus at the 1939 New York world's fair: capitalist funhouse or surrealist landmark? [PDF]

open access: yes, 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
core   +2 more sources

The GR2 gripper: an underactuated hand for open-loop in-hand planar manipulation [PDF]

open access: yes, 2016
Performing dexterous manipulation of unknown objects with robot grippers without using high-fidelity contact sensors, active/sliding surfaces, or a priori workspace exploration is still an open problem in robot manipulation and a necessity for many ...
Dollar, Aaron M   +2 more
core   +1 more source

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