Experiment and Simulation of Self-excited Torkbuster
The stick-slip vibration is a technical bottleneck restricting for PDC bit in efficient drilling deep hard formation. To reduce the stick-slip vibration of drill bit during drilling deep hard formations, a torkbuster has been introduced.
Ma Hongyan +5 more
doaj
Modelling friction contacts in structural dynamics and its application to turbine bladed disks [PDF]
Firrone C.M., Zucca S.
core +2 more sources
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao +5 more
wiley +1 more source
Experimental tests and analytical model for stick-slip phenomenon reduction with the use of longitudinal tangential vibrations [PDF]
M. Leus, Marta Rybkiewicz, P. Gutowski
openalex +1 more source
Surface functionalization of polypropylene macrofibers to enhance fiber‐matrix interfacial bonding. ABSTRACT Concrete is the most used higher compressive strength‐building material, albeit brittle to tensile, and flexural loads. Polypropylene (PP) synthetic polymeric macrofibres are commonly employed as reinforcement material to prevent this situation ...
Elena Saccani +3 more
wiley +1 more source
Stick-slip vibration in water-lubricated bearing-shaft system simulated in persistent homology-based machine learning model [PDF]
Shengdong Zhang, Xiuying Yang, Yong Jin
openalex +1 more source
NiFe‐NO3 Layered Double Hydroxide as a Novel Anode for Sodium Ion Batteries
This study demonstrates, for the first time, the effectiveness of using LDH as an anodic material in SIB. The material is stable and show high specific capacity, the reaction mechanism has been thoroughly investigated and comprehensively described and involves a phase change reaction followed by sodium intercalation.
Marco Fortunato +4 more
wiley +1 more source
Nonlinear Dynamic Modeling and Analysis of Drill Strings Under Stick–Slip Vibrations in Rotary Drilling Systems [PDF]
Mohamed Zinelabidine Doghmane
openalex +1 more source
Drill Bit Stick-Slip Vibration Experiment Research and Analysis of Influencing Factors [PDF]
Dejun Ba +4 more
openalex +1 more source
An assessment of stress and production rate of sucker rod heat pipes in oil well pumping system
The sucker rod pumping system is the preferred oil extraction technique. The concept about equipping the hollow vacuum space in solid sucker rods with heat pipe has been scrutinized in terms of stress and oil production evaluation. Abstract The implementation of the heat pipe concept in sucker rods for oil pumping systems negates the requirement for an
R. S. Anand +5 more
wiley +1 more source

