轴系

Objective: To observe the ultrastructural changes of the gonad axises in D-gal-induced aging rats.

目的：观察D-半乳糖衰老大鼠性腺轴系超微结构的变化。

A macro and micro and chemical element analysis was made on fracture of ruptured coupling bolts,torsion test was performed and stress analysis and calculation were made,the results show that when the steam turbine had failure,MP-LP rotor coupling bolts and generator-exciter rotor coupling bolts failure were classified as overload shear fracture with partial deformation .

对215MW汽轮机断裂的对轮螺栓做断口宏观、微观分析，化学元素分析，扭转试验及受力分析计算，结果表明汽轮机组在事故中，中压-低压转子对轮螺栓和发电机-励磁机转子对轮螺柱的失效类型为：过载剪切断裂，同时局部挤压变形，这是由于事故过程中轴系受到冲击扭矩作用而引起的。

Magnetoelectricity gear method is a general torsional oscillation measurement method. It has disadvantages on less measure point and improved-needed dynamic characteristic.

现行的扭振测量方法以磁电式齿轮测量法为主，这种方法存在测点少，动态特性有待提高的缺点，就此本文提出了一种基于高速CCD摄像技术的汽轮发电机组轴系扭振测量的新方法。

Low order modes of sub structures obtained are used for the modal analysis of whole system, thus the efficiency of modal analysis may be raised.

在样机上进行了扭振测量，并在计算和试验的基础上对凸轮发动机轴系扭报特性进行了初步探讨。

Aim To improve the accuracy of measuring roundness and spindle mo-tion error with three-point method.

摘 要 目的研究进一步提高三点法测量圆度及轴系运动误差精度的方法。

Three moment method,the transition matrix method and finite element method in shipping shaft system alignment are used ,the application of finite element method in shipping shaft system alignment is proved to be more reasonable through an example .

并以某实船为例，利用三弯距法、迁移矩阵法和有限元法对船舶轴系进行校中计算，说明有限元法更先进合理。

The results from different calculation solutions alsoshow that the precision of the instantaneous angular speed of the marine diesel enginebased on the flexible body model is mainly correlated to the rigidity matrix and theinertia of moment matrix of the equivalent model.

考虑不同阻尼大小的仿真计算表明：基于柔性体模型的柴油机瞬时转速计算精度主要与轴系当量系统的刚度和惯量有关。

Consequently, dynamic characteristic analysis of the propulsion shafting is of theoretical and practical significance.

因此船舶推进轴系的动力学特性分析具有重要的理论和实际意义。

This thesis is to research mainly the lateral vibration of ship propulsion shaft system.

本篇论文主要是在研究船舶推进轴系的侧向振动。

It was in doubt for long time whether the static-excitation could be used to improve Subsynchronous Resonance condition in a certain power system with serial compensation.

汽轮发电机采用静止励磁方式使轴系缩短并减少了一个质块，是否可以去掉有危害性的扭振频率，而扩大串补系统中次同步谐振安全运行区范围的问题为工程技术人员所关心。

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。