Results 21 to 30 of about 3,292 (246)

From transmission error measurement to Pulley-Belt slip determination in serpentine belt drives : influence of tensioner and belt characteristics [PDF]

open access: yes, 2009
Serpentine belt drives are often used in front end accessory drive of automotive engine. The accessories resistant torques are getting higher within new technological innovations as stater-alternator, and belt transmissions are always asked for higher ...
Dufour, Regis   +3 more
core   +1 more source

Formation Mechanism of Metro Rail Corrugation Based on Wheel–Rail Stick–Slip Behaviors

open access: yesApplied Sciences, 2021
Field investigation shows that most corrugations occur on the inner rail surface of curved tracks with a radius of less than 700 m. In order to explore the formation mechanism of metro corrugation, the relationship between wheel–rail stick–slip ...
Zhiqiang Wang, Zhenyu Lei
doaj   +1 more source

Test on Stick-Slip Vibration of PDC Bit in Horizontal Wells

open access: yesShiyou jixie, 2023
Stick-slip vibration can lead to PDC bit damage and downhole instrument failure,while testing is a method commonly used to study the stick-slip vibration of drill string system in horizontal wells.In the paper,a micro PDC bit was designed to conduct rock
Long Wei   +6 more
doaj  

Study on suppressing of stick-slip using dynamic vibration absorber

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This study discussed design criteria for suppressing stick-slip using dynamic vibration absorber. First, a simplified analytical model that can quantify the effect of the dynamic vibration absorber on the occurrence and nonoccurrence conditions of stick ...
Satoru MAEGAWA, Fumihiro ITOIGAWA
doaj   +1 more source

Stick–Slip Characteristic Analysis of High-Speed Train Brake Systems: A Disc–Block Friction System with Different Friction Radii

open access: yesVehicles, 2023
Inspired by the difference in the friction radii of the pads from the high-speed train brake system, stick–slip experiments for a disc–block friction system with different friction radii were carried out via a test device.
Changlin Lu   +5 more
doaj   +1 more source

Modeling and analysis of stick-slip vibration and bit bounce in drillstrings [PDF]

open access: yes, 2017
Bit bounce and stick-slip vibration are detrimental to the service life of drillstring and down-hole equipment. A two degrees-of-freedom lumped parameters model is employed to account for bit-rock interaction and coupled vibration.
Baojin Wang, Fushen Ren
core   +1 more source

Measurement and Analysis of Downhole Drill String Vibration Signal

open access: yesApplied Sciences, 2021
Downhole drill string vibration data can provide an effective reference for research drill string vibration during drilling. In this paper, the research group used a storage-type downhole vibration measurement equipment equipped with an orthogonal, three-
Yafeng Li   +4 more
doaj   +1 more source

Study on Drill String Stick-slip Vibration Pattern Under Bit-Rock Interaction

open access: yesShiyou jixie, 2023
Stick-slip vibration leads to high-frequency shear stress on drill string and premature fatigue of drill string.Therefor,the torsional vibration model of drill string system considering bit-rock interaction was built by coupling the bit-rock interaction ...
Xing Xuesong   +4 more
doaj  

Investigation of stick-slip vibration in a commercial vehicle brake assembly [PDF]

open access: yes, 2016
NoThere are several types of disc brake instabilities associated with the brake systems; however, they are usually classified into two main categories depending on the frequency range: brake groan 0-300 Hz and brake squeal 1- 16 kHz.
John D. Fieldhouse   +5 more
core   +1 more source

Control based bifurcation analysis for experiments [PDF]

open access: yes, 2008
We introduce a method for tracking nonlinear oscillations and their bifurcations in nonlinear dynamical systems. Our method does not require a mathematical model of the dynamical system nor the ability to set its initial conditions.
Krauskopf, B., Sieber, J.
core   +1 more source

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