本文尝试开发的发动机台架，不仅具有常规功能，而且具有模拟螺旋桨特性加载的功能。
This paper presents a calculating method based on the hull-engine-prop relations, apply capability curve of prop to determine the maximum speed of towing vessel.
介绍一种新型的螺旋桨特性负载模拟装置，它是全数字控制的直流转矩伺服系统，采用转矩电流双闭环控制方式。
A new equipment for simulated the performance of propeller load is introduced in this paper, it's an all digital DC torque servo system using torque closed loop and current closed loop control.
在某种程度上，这是由于涡轮螺旋桨具有强健的力学特性，而部分原因是由于“空中拖拉机”的油箱有橡胶膜紧密围绕弹孔使得泄漏减缓。
In part, this is because of the robust mechanics of turboprops and in part because Air Tractor's fuel tanks have rubber membranes which close around bullet holes to slow leaks.
对带最大功率平台特性的螺旋桨设计点的选取、燃油限制功率的设定、燃油消耗量的计算等方面提出了新的看法。
Some new points of view are also brought in on choosing of propeller design point, setting of fuel stop power and calculation of fuel consumption.
分析结果可供变螺距螺旋桨的新型结构设计和流体动力特性研究参考。
These analysis results are references for both new type of structure design and the research on characters of fluid dynamics of propellor.
因此研究螺旋桨负载特性对于深入认识电力推进装置的特点有很重要的意义。
So there is much important significance to deeply understanding the characteristic of electric propulsion device by studying the performance of a propeller load.
首先讨论了舰船辐射噪声的产生机理、构成和频率特性，指出螺旋桨噪声的振幅存在周期性调制。
First, the generation mechanism, components and frequency characteristic of radiated noise of naval ships are studied. There exists periodical modulation for the amplitude of propeller noise.
本文将传统的螺旋桨动量理论与计算流体力学的方法相结合，数值模拟螺旋桨滑流对其后部件气动特性的影响。
This thesis concentrates on the application of CFD techniques to simulate the effect of turbo-propeller slipstream on the parts behind the propeller.
通过对螺旋桨负载特性的研究，提出了一种螺旋桨负载模型建模的方法，给出模型的计算机求解流程图。
In this paper, we propose a method of a propeller load modelling by studying the performance of a propeller load. A procedure flow chart of modeling is presented.
通过对螺旋桨负载特性的研究，提出了一种螺旋桨负载模型建模的方法，给出模型的计算机求解流程图。
In this paper, we propose a method of a propeller load modelling by studying the performance of a propeller load. A procedure flow chart of modeling is presented.
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