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Power and mechanical engineering ; steam turbine ; rotor-bearing ; nonlinear vibration ; oil whip ; Newmark method

动力机械工程；汽轮机；转子-轴承；非线性振动；油膜振动； Newmark法

Power and mechanical engineering ; steam turbine ; rotor ; wheel ; wheel rim ; heat transfer coefficient ; calculation formula

动力机械工程；汽轮机；转子；叶轮；轮缘；传热系数；计算公式

Thermal Power Engineering;Steam Turbine;Thermal Stress;On Line Monitor;Thermal Power Plant

论文导师徐鸿，论文学位硕士，论文专业热能工程

Based on the thermodynamic principle and calculation model of double-region-heating steam wetness probe, according to the typical operating condition of steam turbine,the water drop vaporization length in the double-region- heating steam wetness probe has been numerically calculated.

概述水蒸汽作为1种常用工质，广泛应用于火电、核电、船舶、石油等行业。水蒸汽在热能动力装置中受外界条件影响，常会呈现不同的状态，其中之一就是饱和湿蒸汽状态，即干饱和蒸汽和饱和水滴的混合物。

The research subject in this thesis is the part of the research project in advance of National Defence of the Tenth Five-year Plan.The primary coverage of this thesis includes nuclear power equipment steam turbine and condenser system.

本研究是十五国防预研项目核动力装置动态仿真中的子课题，其主要内容是围绕着核动力装置汽轮机和冷凝器系统来展开的。

In view of the low ball collection rate in rubber ball cleaning system in steam turbine condenser,the causes of equipment system problems in operation are analysed and the measures to improving are given.

针对汽轮机凝汽器胶球清洗系统在运行过程中出现收球率较低的运行现状，对设备系统存在的问题进行原因分析，并提出有效的改进措施，确保凝汽器安全经济运行。

This thesis mostly includes main part models of the second loop system, for example, the steady state model and transient state model of the turbine, the transient state models of the condenser、steam emission system.

本论文的主要内容是：首先，建立二回路系统主要部件的数学模型，包括汽轮机稳态模型和动态模型，凝汽器和排放系统动态模型。

The condition of steam turbine in case of tripped and not tripped by boiler MFT were analyzed.

分析了锅炉主燃料跳闸后联跳和不联跳汽轮机工况、机组可能存在的安全问题，提出采用汽轮机低汽温保护替代锅炉MFT 联跳汽轮机保护，实现停炉不停机。

The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

Loading of peak generator units were changed frequently. The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction. It was important to study fatigue-creep interaction damage of fastening bolts under multiaxial stress.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。