Ship propeller noise can be predicted by non-dimensional analysis of ship model propeller noise.
通过无量纲分析船模螺旋桨噪声可以预报实船的螺旋桨噪声。
The forced transverse vibration tests of a ship propeller shafting with a variety of propeller blades were carried out on a test bed.
本文论述了在试验台上进行的不同叶片数螺旋桨轴系横向受迫振动实验。
Some pumps used for 1000 hours, the ship propeller in the use of time is also greatly reduced because of the efficiency of air piping.
某些水泵使用1000小时左右即出现严重的空蚀，船舶螺旋桨在使用一段时间后也因空蚀而效率大大降低。
The present paper deals with theoretical model of random sequence of exponential attenuate acoustic pulses caused by ship propeller cavitation noise.
探讨舰船螺旋桨空泡噪声指数衰减型随机脉冲序列的理论模型。
Turbine is widely used in production and many aspects of life, mainly for prime mover of power generation; it can also directly drive pumps, fans, compressors and other ship propeller.
汽轮机被广泛应用于人民生产、生活的许多方面，主要用作发电用的原动机，也可直接驱动各种泵、风机、压缩机和船舶螺旋桨等。
Through trained, BP neural network can obtain strong nonlinear mapping ability to learn the data characteristics of the hydrodynamic performance of ship propeller as a mathematic analytic form.
BP人工神经网络模型通过训练可以具备强大的非线性映射能力，以数学解析的形式，较好地提取了海量螺旋桨水动力性能数据特征；
Can be used in ship industry, cold water treatment, sea water and cold oil, Low pressure valves, rotating equipment, and reciprocating pump hydraulic squeeze machine, the ship propeller equipments.
可应用于船舶行业、冷水处理、海水及冷油上；低压阀门，旋转设备，及往复泵液压榨机，轮船螺旋桨等设备。
Abstract: : the propeller is in the model airplane one of most important components, is the model ship airplane obtains the power the key component.
摘要：螺旋桨是航空模型中最重要的零件之一，是航模飞机获得动力的关键部件。
To a ship with good speediness, the performances of ship, main engine, and propeller must match each other.
快速性良好的船舶应使得船、主机和螺旋桨之间的性能综合匹配。
The propeller is in the model airplane one of most important components, is the model ship airplane obtains the power the key component.
螺旋桨是航空模型中最重要的零件之一，是航模飞机获得动力的关键部件。
Todaywhen I just to begin the work, the small disciple come to ask me: master, I sawthe berth of the quick launching ship is very strange, the good propeller is sandingand painting.
今天刚刚上班，小徒弟跑过来：师父今天我看到船台的那条快下水的船很奇怪，好好的螺旋桨又是打砂又是喷漆。
Tin can improve the brass strength and corrosion resistance of the sea, therefore calls navy brass, used for ship thermal technology equipment and propeller, etc.
锡能提高黄铜的强度和对海水的耐腐性﹐故称海军黄铜﹐用作船舶热工设备和螺旋桨等。
The importance of the propeller is needless to say. And it hasthe most important effects on the work status of the whole ship.
螺旋桨的重要性不用多说大家都知道，它的好坏直接影响整条船的工作状态。
With the increase of the tonnage and power of ocean-going ship, more and more attentions are paid to the match among vessel, main engine and propeller by shipping and shipbuilding world.
随着海洋运输船舶的吨位和功率不断增长，船舶推进系统中船机桨配合研究越来越受到世界造船业和航运业的重视，成为船舶科技领域的重要课题之一。
This paper adopts the theoretical method to research the problem on the performance prediction and the design of the propeller operating in ship wake systematically.
本文采用理论方法系统地研究了非均匀流场中螺旋桨性能预报和理论设计问题。
The asymmetrical skeg is an energy-saving unit which is fixed on the sternpost forward of the propeller on a single screw ship.
不对称尾鳍是安装在单桨船螺旋桨前方艉柱上的一种节能装置。
This paper introduces the calculating methods of diesel engine and propeller induced forces which often result trouble in ship hull steady vibration.
本文介绍引起船体稳态振动的柴油机及螺旋桨激振力的计算方法。
This paper describes primarily the results of the research on the combination of stern shape, wake field and propeller rotation direction for a shallow draft full ship model.
本文主要介绍双桨浅吃水肥大船尾型、伴流场与螺旋桨旋向配合研究的主要结果。
Many wise shipping companies are still use silicone antifoulingpaint to protect the propeller of the ship even the ship body from thepollution.
不少明智的船务公司还是在不断的采用有机硅防污漆，为船舶的螺旋桨甚至整个船体提供防污保护。
The effective wake is one of the primary reasons of propeller cavitation and induced ship hull vibration.
实效伴流的不均匀性是引起螺旋桨空泡、振动的主要原因之一。
The first part is about the features extraction, including the estimation of source level of the ship-radiated noise and the line extraction of the rotation frequency of propeller noise spectrum.
首先是舰船辐射噪声特征量的提取，包括舰船总声源级的估计和螺旋桨轴频线谱的提取。
Tiny deformation will appear in the local of the propeller shaft of certain ship which is endured an invariableness load, although the shaft stress is within the elastic limit range.
某舰的螺旋桨尾轴长期处在恒定载荷作用下，虽然尾轴应力在弹性极限范围内，但是尾轴局部还是很容易发生微量的塑性变形。
It is verified by means of model test that the ship vibration is caused by the propeller-excited force, which is generated by the propeller running in the non-uniform stern flow field.
并通过模型试验进一步证实该船振动的成因主要是由于螺旋桨在不均匀流场中运转时产生的激振力所致。
The mechanical type propeller dynamometer is unable to satisfy the requirements of the automatic measurement for the ship model tests.
机械式螺旋桨动力仪已不能满足船模试验自动化测量要求。
Propeller-induced vibration caused by propeller operation in unsteady wake flows remains a highly important factor in ship design.
螺旋桨在不均匀伴流中操作引起的激振是船舶设计一个非常重要的因素。
Propeller cavitation degrades propeller performance, erodes blade surfaces, produces noise, and causes vibration on the ship hull.
螺旋桨空泡会降低螺旋桨性能，产生空化剥蚀和噪声，从而导致船体振动。
These expressions are suitable for calculating the value of the propeller thrust with computer and convenient for the study of the ship 's maneuverability.
所得的回归表达式适用于计算机进行螺旋桨的进、倒车推(拉)力计算，同时便于进行船舶操纵性研究。
In this paper, the match of ship, propeller, main engine and sail with sail-assistance is studied.
本文针对船舶采用风帆助航时船、机、桨匹配控制进行学习研究。
The uniformity of propeller wake has close relationship to noise and vibration problems at ship stern.
艉迹流的均匀性与船艉振动与噪音问题有直接相关性。
The uniformity of propeller wake has close relationship to noise and vibration problems at ship stern.
艉迹流的均匀性与船艉振动与噪音问题有直接相关性。
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