Results 21 to 30 of about 63,940 (291)
Study on the torsional movement of a reed valve in a rotary compressor
Advances in Mechanical Engineering, 2018 Torsional movement makes the motion of a reed valve very complex and unmanageable in a rotary compressor. However, there is little information on the torsional movement of the reed valve in comparison to the valve displacement and velocity in the ...
Xiaoling Yu +5 more
doaj +1 more source
Dynamic Behavior of Shafts, Couplings and Working Body of the Machine under Torsional Impact Moment [PDF]
Journal of Applied and Computational MechanicsIn this study, the influence of the torsional rigidity of the connected shafts, couplings and the working body of the machine, as well as the damping capacity of the coupling, on the torsional impact moment generated in the machine transmission is ...
Isa Khalilov, Abdullah H. Sofiyev
doaj +1 more source
Control and femtosecond time-resolved imaging of torsion in a chiral molecule [PDF]
, 2012 We study how the combination of long and short laser pulses, can be used to induce torsion in an axially chiral biphenyl derivative (3,5-difluoro-3',5'-dibromo-4'-cyanobiphenyl).
Anders Thyboe Lindhardt +9 more
core +4 more sources
Advances in Mechanical Engineering, 2018 Stick-slip vibration is a big problem that the drilling of deep wells has to face, especially for drilling of tough formations. This type of vibration leads to failure problems, reduces the rate of penetration, and lowers the borehole quality ...
Liping Tang, Xiaohua Zhu
doaj +1 more source
Vibration Powered Radiation of Quaking Magnetar [PDF]
, 2011 In juxtaposition with the standard model of rotation powered pulsar, the model of vibration powered magnetar undergoing quake-induced torsional Alfven vibrations in its own ultra strong magnetic field experiencing decay is considered.
Bastrukov, S. +3 more
core +3 more sources
Development and Field Test of the Same-Frequency Different-Phase Compound Impact Tool
Shiyou jixie, 2023 A same-frequency different-phase compound impact tool was developed to improve the rock-breaking efficiency of PDC bits in hard formations, increase the penetration depth of cutters, and eliminate the “stick-slip” phenomenon of the downhole bit.The ...
Ye Daohui +5 more
doaj
On the scattering of longitudinal elastic waves from axisymmetric defects in coated pipes [PDF]
, 2013 This is the post-print version of the final paper published in Journal of Sound and Vibration. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural ...
Alleyne +27 more
core +2 more sources
Role of the flat-designed surface in improving the cyclic fatigue resistance of endodontic NiTi rotary instruments [PDF]
, 2019 The aim of this study was to investigate the role of the flat-designed surface in improving the resistance to cyclic fatigue by comparing heat-treated F-One (Fanta Dental, Shanghai, China) nickel-titanium (NiTi) rotary instruments and similar prototypes,
D'Angelo, M. +8 more
core +1 more source
Applied Sciences, 2022 The precision rotary vector reducer with involute variable tooth thickness (PRVT) is a high-performance precision transmission device, which is very suitable for aerospace, medical machinery, industrial robots, automation equipment, and other fields, and
Le Chang +5 more
doaj +1 more source
Superprotonic phase transition of CsHSO4: A molecular dynamics simulation study [PDF]
, 2005 The superprotonic phase transition (phase II --> phase I; 414 K) of cesium hydrogen sulfate, CsHSO4, was simulated using molecular dynamics with the "first principles" MSXX force field (FF).
Chisholm, Calum R. I. +3 more
core +1 more source