直升机

First, the structure of the helicopter airscrew loading system is introduced. Then, the mathematic model of the single channel loading system is proposed, based on which its dynamic performance is analyzed.

论文首先介绍了直升机旋翼加载系统的结构，然后建立了单通道加载系统的数学模型，在此基础上分析了加载系统的动态性能并设计控制律。

In this thesis, the aerodynamic load simulation of one type of helicopter airscrew is studied, and the systems structure and its mathematic model are analyzed.

论文结合实际的工程项目，以某型号直升机旋翼气动载荷模拟为研究内容，对加载系统的组成、系统数学模型进行分析和研究。

The airscrew included various propellers, fans, windmills and helicopter blades, etc.

空气螺旋包括螺旋桨、风车、风扇和直升机叶片等。

In the helicopters half-practicality simulation laboratory, load simulator is an important equipment to simulate the aerodynamic load acting on the airscrew while flying.

直升机的半实物仿真试验室中模拟旋翼在飞行中所受空气动力载荷的重要设备是负载模拟器。

It was not least this circumstance that enabled the Ka-26 as the only Soviet helicopter to be certificated in accordance with US FAR 29 airworthiness regulations.

它不是这种情况，使最少的只有苏联直升机的家被认证为26与29日美军在远东按照适航条例。

Thanks to Frank Robinson and his sponsorship, The Helicopter Museum at Weston super Mare in Somerset in the UK has now been able to add a full y airworthy condition R22HP to its collection.

感谢弗兰克罗宾逊和他赞助，直升机博物馆在威斯顿超级图马雷在萨默塞特在英国，现在已经能够添加一个充分 y 适航条件，以r22hp其收集。

An aircraft carrier and more helicopters arrived Friday, and a hospital ship is expected by the end of next week.

一艘航空母舰和更多的直升机周5抵达，一艘医务船预计下周末到。

In order to deduce the engine control law during the helicopter autorotation, simulation was made to demonstrate the transient process of the engine when entering the helicopter autorotation condition using normal control law. Based on the existing control law, an improved law was brought forward by magnifying the differential gain of collective pitch "anticipator" and broadening the deceleration limitation.

为确定直升机自转下滑训练过程发动机的控制规律，分析了采用正常控制规律进入自转状态时涡轴发动机的变化过程，提出了在现有控制规律基础上增强动力涡轮转速控制模块中总矩"提前器"作用和适当放宽速率限制值的控制对策。

At its semiweekly media briefing, China's foreign ministry criticized the Obama administration's decision to sell antimissile systems, helicopters and other arms to Taiwan in a package valued at a total of $6.4 billion.

在每周举行两次的新闻通气会上，中国外交部指责奥巴马政府向台湾出售武器的决定。这批武器总价64亿美元，包括反导系统、直升机和其他武器。

In the past,sling sonar s antisubmarine efficiency was simply managed,that was out of accord with fact.

以往对于直升机吊放声呐搜潜效率的处理过于简便，与实际状况不符。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐