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Finally, through the analysis of various factors affecting the dynamic model of hydro-generating, spindle system is simplified, the reasonable simulation platform of turbine rotor dynamic balance system is constructed, in which nonlinear oil film is incentive.

最后，通过分析判断动力学模型的各种影响因素，对水轮发电机组主轴系统进行了简化，将非线性油膜力作为激励，构建了合理的水轮发电机组转子系统动平衡仿真平台。

In the first, the background of this dissertation, the he status which helicopter blade dynamic balance experimental platform system design and using are introduced, helicopter blade dynamic balance experimental platform system is not designed in our country, so in this Dissertation, the advanced experience is accepted and some innovative methods also are used in the system design.

此论文通过借鉴国内外对直升机旋翼动平衡试验台系统设计的经验，确定采用当今较新与较成熟的技术构建了集数据采集与控制为一体的试验控制系统来满足整个动平衡试验的要求。另外还对直升机旋翼动平衡试验台系统方案设计中各分系统作了简单介绍，并通过和以往系统比较分析，在借鉴前人经验的基础上进行了创新。此论文主要介绍了直升机旋翼共锥度测量分系统的设计与实现。

It was observed that dynamic behavior of the structure is quite similar with that of single mass point structure, and that the design variables and locations of poles have a great effects upon the dynamic behavior of the whole structure.

对于码头上作用的波浪力和船舶撞击力动力荷载，本文分别进行了适当的处理与模拟，并对结构的动力位移响应进行了计算分析。

Under the conditions to consider the influence of the inertia of loading side and the stiffness of torque sensor,the dynamic models are established,the conclusion that the superfluous moment is related to the motion velocity,acceleration,and the differential of acceleration is presented.0n the basis of this dynamic model,a more effective control method to reject to extraneous moment from the view point of the division and cooperation of the function of the controller,i.e.hybrid control method,is proposed.

在考虑力矩传感器刚度和加载侧惯量影响的情况下，建立了电液力矩加载系统的动态模型，指出多余力矩不仅与运动速度干扰有关，而且还与运动加速度干扰和加速度的变化率干扰有关。在此基础上给出了一种从职能分工角度抑制多余力矩更有效的控制方法——混合控制法。

The research results show that there is a good positive correlativity between dynamic modulus of elasticity and the longitudinal or transverse wave velocity, but there is no such positive correlativity between dynamic Poisson's ratio of the rocks and its longitudinal or transverse wave velocity.

研究结果表明，煤系岩石的动弹性模量与岩石的纵波或横波速度具有很好的正相关关系，而与泊松比不具有这种正相关关系。

For the analysis of both static and dynamic characteristics, the additional moments, axial/radial coupled stiffness coefficients and the radial/radial coupled stiffness coefficients are taken into account Based on it, the influences of the bearing angle, the ratio of width to diameter, and the ration of magnetic polar angle on the static and dynamic characteristics conical magnetic bearing are analyzed, and the corresponding numerical results are presented.

在圆锥电磁轴承基础解的计算模型中，增加了轴承附加力矩、力矩刚度系数以及轴向/径向、径向/径向耦合刚度系数的计算。在此基础上，本文详细讨论了圆锥电磁轴承锥角、宽径比以及磁极角比对轴承静、动特性的影响，并给出了数值结果。

On this basis, anoptimization algorithm library named OPTLIB is formed. The study of dynamic optimization theory is followed. To solve the problem of thecoupling of the static and the dynamic parameters of the flying vehicle design, some auxiliaryvariables are introduced to deal with them together. Then the calculus of variation is adoptedand augment form of Pontryagin's Maximum Principle is derived.

研究了飞行器设计中的典型动态优化问题——轨迹优化问题及算法，针对飞行器设计中的静态参数和动态参数互相耦合的问题，引入辅助变量将静态参数和动态参数统一处理，在此基础上用变分法推导了极大值原理的增广形式，证明了单独的静态或动态最优并不等于总体最优。

Based on the power series expansion of the general flexible matrix of the sub-system, a general expression of the dynamic stiffness matrix of the reduced model was derived from the exact expression of the reduced model for the direct substitution dynamic condensation methods. The general expression was also expressed as a power series of the unknown eigenvalues. After that, the validity and error of the Guyan condensation method were analyzed.

对于动力缩聚直接代入法，本文从降阶模型的精确表达式出发，利用子系统广义柔度矩阵的幂级数展开式，导出了降阶模型动刚度矩阵的一般表达，并把它表示为未知特征值的幂级数形式，在此基础上对 Guyan缩聚法的适用范围和误差进行了一般分析。

YE62 series of dynamic data acquisition system supports a wide range of pre-conditioning input and automatically identify the type and parameter settings, constitute a multi-functional dynamic testing and analysis system.

YE62系列动态数据采集器支持多种前置调理器的输入，并自动识别类型和进行参数设置，构成多功能动态测试与分析系统。

The invention is using the time stamp mode for the dynamic source releasing mode, in other words, namely the source management module records the occupancy incepting time of the source, check the time difference between the current time and the incepting time when the new task ask to use the source, assign the time difference exceeding the prearrange threshold source as the free source to the new task, and achieve the assignment of the dynamic source.

本发明中，对于动态资源释放模式，采用时间戳的方式。换句话说，即由资源管理模块记录资源占用起始时刻，并在新任务要求使用资源时，检查当前时刻与起始时刻之间的时间差，将时间差超过预定门限的资源作为空闲资源分配给新任务，实现动态资源分配。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。