转子

Brief introduction of CDTL and it's superconductive rotor has been conducted. The developmental status of the balance technology for high precise spherical rotor has been summarized.

研究分析了国内外高精密球形转子的平衡技术的发展现状，针对现有超导转子静平衡方法所存在的问题提出有待解决的关键技术。

In this paper the nonstationary vibration behavior of an unbalanced rotor system, which is assumed to be bending flexible but torsionally rigid, during acceleration or deceleration through the critical speeds is investigated. Influencing factors such as gyrascopic effects, external and internal damping, Supporting mass, damping and stiffness, asymmetry of the shaft crass section as well as anisotropy of the supports are considered.

在理论分析方面，本文考虑了转子的陀螺效应，内外阻尼，轴截面的非对称性，支承的貭量、阻尼、刚度和支承的各向异性等因素的影响，使用分析动力学，建立起严格的运动方程，并考虑了弯曲自由度与转动自由度间的耦合，因而能较精确地分析和描述转子通过临界点时的非定常振动和转速变化規律。

This can then easily be combined with either a trochanteric slide or extended trochanteric osteotomy based on the pre-operative plan and requirements at the time of surgery.

依据术前计划和术中需要，这可以很容易的结合转子滑动或扩展的转子截骨术。

Objectives: The ongoing debate, surrounding the surgical treatment of trochanteric hip fractures, particularly unstable fractures, has led to continuous changes in the design of well-established implants and to the development of new ones. The goal of this paper was to use a finite element simulation to compare the bioniechanical behaviour of three implants most often used at the hospital of China: DHS.

目的 通过有限元法比较目前治疗股骨转子间骨折常用的三种内固定系统：DHS、DCS和Gamma钉的生物力学性能，评价三者治疗不稳定股骨转子间骨折的优劣，对临床选择内固定提出合理建议。

As the turbomachine is designed to operate at higher speeds, the stability of the rotor system becomes more sever.

透平机械转子动力系统的运动稳定性问题是目前转子动力学中的一个热点课题。

The wavelet time-frequency features of the cracked rotor and the uncracked rotor were discussed, and the difference between them was presented.

将小波分析方法引入到裂纹转子时频特性研究中，得到了有无裂纹转子的小波时频特性，并讨论了它们的差别。

The wavelet time-frequency properties of the uncracked rotor and the cracked rotor were discussed by the continuous wavelet time-frequency analysis algorithm. A new algorithm using the wavelet time-frequency analysis algorithm to detect the crack was proposed. The influence of the sampling frequency on the wavelet time-frequency analysis algorithm was analyzed through the numerical simulation research; the valid sampling frequency was presented.

利用连续小波时频分析方法，讨论了裂纹转子与无裂纹转子的小波时频特性，提出了利用小波时频分析方法识别裂纹的新方法；数值仿真研究了采样频率对小波时频分析方法的准确性和有效性的影响，并给出了建议性的采样频率。

The method to 17 examples II～IV thighbone ExtensionSub bone fracture, the good surgery cuts open the replacement, first uses to bundle Ties upbelt the fixed small rotor, then uses DHS to be fixed.

对17例Ⅱ～IV股骨转子间骨折，行手术切开复位，先用捆绑带固定小转子，再用DHS固定。

This paper intrdouces how to measure the vibration of the rigid rotor by using digital laser vibrometer,and analyzes the calculation method of the amplitude and angle of the dynamic unbalance.

介绍了采用激光干涉仪测量刚性转子运转时支撑上振动信号的原理，并简要分析了刚性转子动不平衡量的提取和解算技术。

When wound-rotor induction motor is operated at over speed driven by induction motor and its rotor winding is excited by altemating current with working frequency higer frequency altemating volage can be produced.

应用异步电机拖动绕线转子异步电机超速运行且其转子绕组如以工频交流励磁产生高频交流电的原理，组成150Hz固定频率M-G交流发电机组，进行YZ、YZR系列电机超速及升高电压试验。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。