研究结果可为带翼刀机翼在扑翼飞行器上的应用提供技术支持。
Results of wind tunnel test provide technology support for application of wing with wing-blade in flapping-wing micro air vehicle.
所述的刀翼设置有扭角,刀翼的刃口为单面或双面设置的弧形、齿形或线形;
The cutter wings are provided with torsional angles, and the cutting edges of the cutter wings are of single-faced or double-faced arc shapes, tooth shapes or line shapes;
弧形冠部设计,刀翼式分布。
短抛物线外型,四刀翼设计。
短抛物线外型,六刀翼设计。
室内模拟试验表明(1)超高压喷嘴安装在钻头刀翼上能辅助PDC切削齿破岩;
Simulation test shows that, (1) fixing ultra-high pressure nozzle on the bit edge is helpful to penetration with PDC cutting teeth;
对于斜井,由于重力迫使套管平躺于井壁的下侧,如果井眼条件允许,更为结实的固体刀翼式扶正器更为合适。
For deviated wellbores, where gravitational force pulls casing to the low side of the hole, more robust solid-bladed centralizers are better if hole conditions allow their use.
对于斜井,由于重力迫使套管平躺于井壁的下侧,如果井眼条件允许,更为结实的固体刀翼式扶正器更为合适。
For deviated wellbores, where gravitational force pulls casing to the low side of the hole, more robust solid-bladed centralizers are better if hole conditions allow their use.
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