The invention relates to a device for measuring lateral force and axial force of a drill bit during simulated drilling. The force measuring device comprises a sealed cylinder, a simulated drill collar, elastic force measuring pieces, a simulated drill bit, elastic-force-measuring-piece fastening ...
The stability problem for an elasticallu supported column subject to a varying axial force has been solved by means of a general numerical procedure based on Galerkin's method. Apart from the intrinsic value of the solution itself, its p... SE Svensson - 《Journal of Constructional Steel Resea...
Lateral loading is the result of bending at theflex joint. In the real world as component parts are not truly vertical, vertical (axial) and horizontal (lateral or shear) force components shall exist at the top of the subsea BOP.Note: Riser tension with rig offset is the main cause of ...
axial force excitationarbitrarily deep beam edgeaxial point force mobilitypoint-cross mobility elementscross-couplingaxial translational velocityThe cross-coupling at an excited interface between, on the one hand, a lateral moment and an axial translational velocity and, on the other, an axial force ...
4A). Secondly, axial compression test was performed with an axial force up to 200N at a rate of 0.1 mm per second (Fig. 4B). The four-point varus bending stiffness test was performed using an electrohydraulic materials test system setup (Fig. 4C), with a supporting span of 21 cm, ...
These suggest that most augmentation could stem from the change in the effective angle of attack, although the stretched LEV system near the outboard of the wing sections indicates the presence of ‘the changing axial-velocity in LEV’. Contralateral wing mitigates the excessive force The analysis ...
axial force is maximized at a particular location (alternatively, it could be minimized, or it could be some other force), then the weaving algorithm can move the probe in a weaving pattern, comparing locations relative to each other, and moving towards the location of maximal axial force. We...
J-1-5-117 Chaotic vibrations of a post-buckled beam subjected to periodic lateral force and periodic axial excitation 来自 Semantic Scholar 喜欢 0 阅读量: 17 作者:S Maruyama,N Asaka,K. Nagai,T Yamaguchi 摘要: A mutant form of the Escherichia coli replication initiator protein, DnaA204, is...
tournament device effectively distributes a concentrated force into various portions of the spacecraft. In case of thelateral load test, concentrated lateral forces applied at appropriate axial positions simulate the maximum moment and shear force acting simultaneously at the spacecraft/launch vehicle ...
The rotary drilling process for a vertical well or for a directional well involves (1) application of a force downward on a drill bit, (2) rotation of the drill bit, and (3) circulation of the drilling fluid from the surface through the tubular (drill string), and back to the surface...