The effects of grinding parameters on surface roughness of Marine propeller blade were studied by using orthogonal test.
通过正交试验研究了磨削参数对船用螺旋桨叶片表面粗糙度的影响。
Check for surface contact area (metallic contact) between stern shaft and propeller hub tapers.
检查螺旋桨轴与螺旋桨锥度接触面。
The surface of propeller and its trailing vortex is divided into a number of small hyperboloidal quadrilateral panels with constant source sink and doublet distributions.
螺旋桨表面和它的尾涡面离散为四边形双曲面元，每个面元上布置等强度偶极子和源汇分布。
A numerical method is presented for prediction of propeller performance and pressure distribution on blade surface according to lifting surface theory.
本文提供了一种根据升力面理论计算螺旋桨桨叶表面压力分布和螺旋桨性能的数值方法。
A part or surface, such as a wing, propeller blade, or rudder, whose shape and orientation control stability, direction, lift, thrust, or propulsion.
翼剖面；机翼；翼面一个部件或平面，如机翼、螺旋桨叶、方向舵等，其形状或方位控制稳定性、方向、抬升、冲击或驱动。
The unsteady pressure distribution on the propeller blade surface by the present program are in satisfactory agreement with experimental data.
桨叶表面非定常压力分布的计算结果与测试结果的比较表明，本文的预报结果令人满意。
There will be a lot of dust and abrasive residueon the surface of the propeller after sand washing.
冲砂后螺旋桨表面会有很多的灰尘和磨料的残留。
Lifting surface method and non-linear vortex lattice method were used for the calculation of propeller and rudder with additional thrust fins respectively.
对螺旋桨与舵附推力鳍分别采用升力面法和非线性涡格法计算。
If such as metal abrasive is used in sand washing, itwill remain on the surface of the copper propeller, then galvanic corrosionwill occur with Cu.
如果用金属磨料如钢砂冲击铜质螺旋桨会在铜表面上残留，会与铜发生电偶腐蚀。
This research is useful in predicting of the hydrodynamic performance and in enhancing the prediction precision of the propeller by using High-Order Surface Panel Method.
本论文的研究为高阶面元法预报螺旋桨的水动力性能打下了一定的基础，对进一步提高面元法预报的精度具有一定的实用意义。
Meanwhile the open water characteristics of the propeller were predicted by using the lifting surface theory. Comparison with to experimental data showed that calculation errors are acceptable.
应用升力面方法理论计算螺旋桨切割前后的敞水性能，与试验值的比较表明计算值误差在可接受的范围内。
Marine propeller is a type of free form surface part. Its design and manufacture precision decide ship's thrust efficiency directly.
船用螺旋桨是一类典型的自由曲面零件，它的设计和制造精度直接决定了其推进效率。
This paper sets the theoretical and numerical method predicting the unsteady pressure distribution on the propeller blade surface by using perturbation potential based on surface panel method.
本文建立了扰动速度势面元法预报螺旋桨表面非定常压力分布的理论和数值方法。
The transverse effect of the propeller blades at the top near the surface of the water is not strong enough to counteract the opposite effect of the lower blades.
螺旋桨的叶片在靠近水面上方横向效应不强，足以抵消低刀片相反的效果。
It usually works in the oblique flow, and its blades come into and out of the water surface, therefore vertical forces are generated as the propeller rotates.
由于表面桨一般在斜向流中工作，且存在桨叶出入水面，所以表面桨在工作时会产生垂向力。
The surface panel method and an improved numerical Kutta condition have been applied to predict the hydrodynamic performance of a propeller in steady flow.
本文采用面元法和改进的数值库塔条件预报螺旋桨定常性能。
The open water characteristics of a series of large hub-diameter Ratio MAU propellers are calculated by using lift-surface method to expand the chart of MAU-series propeller.
采用升力面涡格法对系列大毂径MAU型螺旋桨进行敞水性能计算，运用理论算法扩充了MAU型螺旋桨图谱。
This paper has adopted the lifting-surface method for the prediction of unsteady hydrodynamic performance and cavitation performance of propeller.
本文采用升力面理论预报螺旋桨非定常水动力性能及空泡性能。
After the vortex distribution is solved according to the boundary condition of no-flow-penetrating through the blade surface, the velocity reduced by the propeller can be calculated.
根据桨叶表面流动不穿透条件解出升力面奇点后，然后再求它们对流场的扰动。
Propeller and rudder has been regarded as the executing agency for AUV in terms of the control of gesture underwater or near the surface.
一直以来，舵与螺旋桨都作为潜器姿态控制等方面的执行机构。
Propeller and rudder has been regarded as the executing agency for AUV in terms of the control of gesture underwater or near the surface.
一直以来，舵与螺旋桨都作为潜器姿态控制等方面的执行机构。
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