Results 181 to 190 of about 764,279 (193)

Non-linear dynamics of a drill-string with uncertain model of the bit–rock interaction

International Journal of Non-Linear Mechanics, 2009
Christian Soize, Rubens Sampaio
exaly  

Percussion characteristic analysis for hydraulic rock drill with no constant-pressurized chamber through numerical simulation and experiment

Advances in Mechanical Engineering, 2019
Xiaoguang Geng, Xiang Tian
exaly  

Stochastic modeling for hysteretic bit–rock interaction of a drill string under torsional vibrations

JVC/Journal of Vibration and Control, 2019
Thiago Gamboa Ritto, Anas Batou
exaly  

A percussion performance analysis for rock-drill drifter through simulation modeling and experimental validation

International Journal of Precision Engineering and Manufacturing, 2016
Jaho Seo
exaly  

Micro-scratch evaluation of rock types—a means to comprehend rock drill wear

Tribology International, 2004
Staffan Jacobson
exaly  

Development of lab-scale rock drill apparatus for testing performance of a drill bit

International Journal of Precision Engineering and Manufacturing, 2015
Jung-Woo Cho, Joo-Young Oh
exaly  

STOCHASTIC DRILL-STRING DYNAMICS WITH UNCERTAINTY ON THE IMPOSED SPEED AND ON THE BIT-ROCK PARAMETERS

International Journal for Uncertainty Quantification, 2012
Rubens Sampaio, Thiago Gamboa Ritto
exaly  

Rock Fragmentation Assessment of a Drill Bit by Hopkinson Bar Percussion Test

Tunnel and Underground Space, 2013
Jung-Woo Cho
exaly  

Rock-breaking analysis model of new drill bit with tornado-like bottomhole model

Journal of Mechanical Science and Technology, 2015
Lin YANG, Jialin TIAN, Gang Liu
exaly  

Modeling and performance analysis of rock drill drifters for rock stiffness

International Journal of Precision Engineering and Manufacturing, 2012
exaly