转子

STRUCTURE: Titanium and composites used extensively, with particular emphasis on corrosion resistance; fully articulated three-blade coaxial contrarotatmg rotors have all-composites blades with carbon fibre and glass fibre main spars, pockets (13 per blade) of Kevlar-type material, and filler similar to Nomex; blades have non-symmetrical aerofoil section; each has ground-adjustable tab; each lower blade carries adjustable vibration damper, comprising two dependent weights, on root section, with further vibration dampers in fuselage; tip light on each upper blade; blades fold manually outboard of all control mechanisms, to folded width within track of main landing gear; rotor hub is 50% titaniuin/50% steel; rotor brake standard; all-metal fuselage; composites tailcone; fixed incidence tailplane, elevators, fins and rudders have aluminium alloy structure, composites skins; fins toe inward approximately 25°; fixed leading-edge slat on each fin prevents airflow over fin stalling in crosswinds or at high yaw angles.

结构：钛和复合材料广泛使用，耐腐蚀性能与特别强调，充分阐明三叶片转子同轴contrarotatmg有碳纤维和玻璃纤维的主要棒材全复合材料桨叶，口袋（每刀片13）凯夫拉型材料，类似的Nomex纤维填料；叶片非对称机翼部分，每有地面可调选项卡，每降低叶片振动阻尼器进行调节，包括两部分依赖重根，在机身进一步减振装置；小费每个刀片上轻；刀片倍手动舷外所有控制机制，折叠宽度内的主起落架的轨道；转子中心为50％titaniuin/50％钢；转子制动标准；全金属机身，复合材料tailcone，固定发生机尾，电梯，蛙鞋和方向舵的铝合金结构，复合材料的皮肤；鳍鳍在每个脚趾向内约25 °；固定领先的板式翅片防止了侧风或气流停滞在高偏航角度。

The phase of ω0 frequency fluctuates tempestuously. The resonance peaks of flexural and torsional vibrations response are present at 2/3ω0 1/2ω0 1/3ω0 and 1/4ω0 with three kinds cracked rotor models. Near 1/2ω0 frequency, quasi-periodic and chaotic motions maybe appear. Periodic, quasi-periodic and chaotic motions show on alternately when the rotating speed is near to 2/3ω0.Combined step-by-step integral method with traditional transfer matrix method, an increment transfer matrix method is put forward.

研究结果表明：各种故障情况下，华北电力大学博士学位论文弯振和扭振之间都存在祸合关系，但弯扭祸合振动一般不会威胁机组安全运行：在叶片丢失或滑环飞脱故障时，将产生很大的弯振，同时各转子扭振也将被激发出来，它以工倍频和前三阶固有频率为主；在各种电气故障情况下，各转子都很快被激励出较大幅值的扭振来，相应各转子弯振也发生一定的变化，但它的变化明显滞后于扭振，扭振和扭矩主要以前三阶固有频率为主。

Assembly of the torsional spring constant and mass moment of inertia of each equivalent shaft-rotor element and the mass moment of inertia of each rotor yields the mathematical model of the entire shaft-rotor system.

将每一等效旋转轴-转子元素的扭转弹簧常数及质量惯性矩与每一转子的质量惯性矩组合，便可获得整个旋转轴-转子系统的数学模型。

The calculating accuracy is ensured by expelling oddity points from the results. In part four, rotor life-loss caused by shear stress under torsional moment, turbo-generator rotors' combined vibration of bending and torsion are studied, and the maximum shear stresses of a stimulate rotor of N300MW steam turbine are calculated.

在第3章，重点研究了汽轮发电机组转子扭振机理和数学模型，特别是汽轮机特殊结构的模化方法，编写了计算程序，计算了某型300MW汽轮发电机组转子和试验台转子扭振特性。

The other method to improve the efficiency for the optical tweezer is to change the microrotor's configuration. The results show that rotor speed of the microrotor is about 10^(-7) as large as that of the cross-shaped rotor.

另一种可以大幅度提高光镊工作效率的方法是改变微转子的形状，数据表明"万字"形微转子的转动效率是相同尺寸的"十字"形转子转动效率的10^(-7)倍。

to explore and summarize the application efficacy of dhs fixation in elderly intertrochanteric femoral bone.methods in shangqiu fifth people's hospital from january 2000 to june 2007 the application of dhs treatment to intertrochanteric fracture has 58 cases, among which male 19 cases, female 39 cases, age 60~98 year old, average age 71 year old, all carry out dhs for fracture fixation.results after six months to 3 years of follow-up, 58 cases of this group has 47 cases with normal walking, without coxa vara, postoperative excellent rate is 81.03%.conclusion grasp the operative indication, intraoperative master key, dhs is the better choices to the treatment of intertrochanteric fracture.

目的 探讨和总结dhs内固定在老年人股骨转子间骨折中的应用疗效。方法商丘市第五人民医院自2000年1月至2007年6月应用dhs治疗股骨转子间骨折58例，其中男性19例，女性39例，年龄60～98岁，平均年龄71岁，均行dhs对骨折固定。结果经半年至3年随访，本组58例患者有47例能正常行走，无髋内翻，术后优良率81.03%。结论把握手术适应证，术中掌握操作要领，dhs是治疗股骨转子间骨折的较好选择。

Simulations show that the proposed observer can track rotor flux vector in a large speed range and be robust to the variable rotor time constant.

仿真结果表明该转子磁链观测器可以在较大速度范围内跟踪转子磁链矢量的变化，同时对变化较大的转子时间常数具有一定的鲁棒性。

Researched and analyzed the influence to static balance of the rotor caused by the structure of gyroscope rotor, roundness, sphericity, dimensional precision, etc. non-spherical factors and surface roughness, the change of outside environment etc., which could react directively on the natural operating and machining of the rotor.

从理论上分析研究陀螺转子本身结构，圆度、球度、尺寸精度等非球形因素以及表面粗糙度、外界环境变化等对转子静平衡的影响等，对转子正常工作及加工处理等起到指导性作用。

The use of CAE on the analysis of motor rotor-bearing system, During the numeric model processes, the finite element method is used to build the discrete model and analytical theory of the rotor-bearing system. The entire system is divided into several dividable substructures, each of which develops individual systematic mathematic model. Finally, the motion equation of whole structures is combined by the integrity of the dynamic variables and force balances on connections of each substructure.

本文探讨马达转子-轴承-框架系统之结构动态特性，提供动态特性之关系设计过程中，其转子-轴承系统的动态设计考量方法，利用电脑辅助工程技术，以有限元素方法，先将马达转子-轴承-框架系统分离各个部位成为子结构，将子结构个别的数学模型加以离散化，最后以各子结构结合面上节点的动态参数一致性及力系平衡，连结离散化子结构成为整体结构的运动方程式。

Submersible motor is a vertical three-phase induction motor. It adopts lathy structure of subsection of stator and rotor: each subsection of stator combines with non-magnetic substance and each subsection of rotor combines with rotor bearing. There is full of appropriative lubricating oil between stator and rotor.

潜油电机是一种立式工作的三相异步电动机，它采用定转子分段的细长结构，各定子段之间轴向用非磁性材料连接，各转子段之间有扶正轴承，定转子之间充满专用润滑油。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。