查询词典 turbine-driven

In order to study the effect of Coriolis acceleration on the natural frequency and dynamic stress of high spinning steam turbine blades, a computational model of Coriolis force and dynamic stress induced by Coriolis acceleration in blades is presented using analytic method.

该模型克服了以往在叶片动态特性分析时难以考虑科氏力影响的问题，导出了科氏动应力和非稳态气流动应力比值的计算公式以及科氏力和离心力比值的计算公式，并进行了实例分析。

Suitable as a coursebook for undergraduate and graduate students of mechanical and aeronautical engineering, Theory will also continue to be a valuable reference for practising gas turbine engineers.

适合作为教材的本科生和研究生，机械和航空工程学，燃气轮机理论也将继续是一个有价值的参考执业燃气轮机工程师。

Since the rating of wind turbine unit is growing continuously, the cutin problem gradually becomes a concern in wind power industry.

随着风电机组单机容量的增大，其并网问题越来越受到人们的重视。

The static natural frequencies and dynamic frequencies (under 3000rpm) are calculated by the finite element method and cyclic symmetry technique. The rotating vibration behaviors of the two models are compared. Different vibration characteristics between the two models are discussed. Geometry mismatch in a turbine blade root, which arose in manufacturing process or caused by wearing out during service, leads to contact conditions changed in fir-tree attachments. As a result, shifting of the fundamental frequencies and redistribution of stress in the blade base possibly cause failure of the blade.

在叶片—轮盘耦合系统振动研究方面，建立了带围带的叶片振动计算模型和带围带的叶片—轮盘耦合系统振动计算模型，考虑旋转离心力作用，采用波传播技术，对两种模型分别进行了整圈模态分析，得到了某汽轮机叶片模型和叶片—轮盘耦合模型在0转速和工作转速(3000rpm)下的振动模态，并对所得结果进行分析比较，讨论了整圈叶片振动模态与叶片—轮盘耦合振动模态的区别。

As a contribution to the control domain, based on the DAA (Disturbance Attenuation Approach) of H〓 theory, a new method to design hydraulic turbine governors is proposed.

基于本文提出的水电机组的状态评估，提出了经济性能维护的维护策略，并用案例说明了该策略的实施。

The water builds up behind a dam and the water is piped into a turbine.

水积存在大坝的后面并且用管道将水输送到涡轮机。

Therefore, it is essential to analyze the dynamic characteristics and to optimize the parameter of DEH control system of reheat extraction steam turbine, which would do benefit to design the control system with excellent performance and to guarantee the safety of the turbines.

全面掌握中间再热抽汽式汽轮机控制系统的动态特性，优化控制器的参数，是设计性能优良的控制系统，保证机组安全运行的关键，具有重要的工程应用背景。

As a most important part of DEH (Steam Turbine Digital Electro-hydraulic Control System), EH system is composed of oil supply system, actuator and emergency trip system.

EH系统是汽轮机数字式电液控制系统——DEH中的一个重要组成部分，它主要由供油系统、执行机构和危急遮断系统三大部分组成。

Aiming at large-size steam turbine DEH governing system is complex and difficult to evaluate their conditions, a method of variable weight synthesizing condition evaluation of DEH system is firstly proposed on the basis of analysis on the condition effecting factors of DEH system.

针对大型汽轮机组数字式电液调节系统复杂，难以评价状态的问题，在分析反映系统运行状态各因素的基础上，首次提出了基于变权综合的数字式电液调节系统状态评价方法。

600MW unit is occupying the more and more important status in domestic power system, meanwhile, the simulation models of DEH introduced in this article can be used as a platform for optimizing operation, enhancing performance and diagnosing faults etc, which will certainly to promote DEH widespread utilization as well as the steam turbine control.

600MW机组正在国内电力系统中占据越来越重要的地位，本文开发的数字式电液调节系统仿真模型为电站的生产运行、性能分析和故障诊断提供了一个研究平台，这必将促进数字式电液调节系统的广泛运用以及汽轮机控制水平的提高。

That night Walesa hosted a dinner to which he invited leaders of all political views.

那天晚上，瓦文萨举办行了一场宴会，邀请了持各种观点的领导人前来参加。

More and more International Congress was held in China.

越来越多的国际会议在中国举行。