Results 1 to 10 of about 233,896 (243)
Effect of Bit Configuration in Impact Penetration Tests with Button Bits
Journal of MMIJ, 2016 Computer simulation of percussive rock drilling requires appropriate numerical models for the interactions among the drill body, rod, rod joint, bit, and rock.
Yingzong LIANG +4 more
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Journal of Rock Mechanics and Geotechnical EngineeringThis paper focuses on the use of rotary-percussive drilling for hard rocks. In order to improve efficiency and reduce costs, it is essential to understand how operational parameters, bit wear, and drilling performance are related.
Jun Wang +6 more
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Applied SciencesDown-the-hole (DTH) hammer drilling has high rock-breaking efficiency and a decisive advantage in hard rock drilling, which can reduce the cost of geothermal drilling.
Hongyu Ye +5 more
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Analysis of drill bit speed in bit-rock interaction with the use of numerical simulation methods [PDF]
E3S Web of Conferences, 2020 Bit-rock interaction while drilling wells using numerical simulation methods is analyzed in the article. The effect of the location of the buttons relative to the destruction of the rock, the influence of the structure on the total speed of the drill bit
Toshniyozov Lazizjon, Mamatov Muhriddin
doaj +1 more source
Journal of Hand Surgery Global Online, 2022 Purpose: To evaluate the possibility of posterior interosseous nerve (PIN) injury during cortical button deployment and seating associated with bicortical drilling and passage of the cortical button across the distal cortex when repairing a distal biceps
Brian Lynch, MD +3 more
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, 2021 This chapter investigates different ways that pro tanto reasons bearing on our options can compete with one another in order to determine the overall normative status of those options. It argues for two key claims: (i) any theory of this competition must
Snedegar, Justin
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Design and Development of GUI for the Mitigation of Chromatic Dispersion: A New Approach
Sukkur IBA Journal of Emerging Technologies, 2022 Chromatic Dispersion (CD) is the important effect that is considering for optical communication system design as it broadens the pulse during the propagation along channel resulting in pulse overlapping and ultimately bit errors raises. The increment in
Bhagwan Das +3 more
doaj +1 more source
Sensors, 2021 Structural health monitoring (SHM) is crucial for quantitative behavioral analysis of structural members such as fatigue, buckling, and crack propagation identification.
Suleman Khan +7 more
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Design and development of a novel Invasive Blood Pressure simulator for patient's monitor testing [PDF]
, 2020 This paper presents a newly-designed and realized Invasive Blood Pressure (IBP) device for the simulation on patient’s monitors. This device shows improvements and presents extended features with respect to a first prototype presented by the authors and ...
Bibbo, Daniele +5 more
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Numerical Simulation of Drilling with Button Bit.
Shigen-to-Sozai, 2000 Development of a powerful hydraulic rotary / percussive drill motivates improvement of drill rods and bits. Recently a button bit is preferably used for its durability and high maximum drilling rate. However, its penetration / rock-breaking mechanism is so complicated and many parameters are involved, then very few fundamental studies have been ...
Seisuke OKUBO, Katsunori FUKUI
openaire +2 more sources