瞬态

The analysis results indicate that the vibration fractional factor with rotating frequency has a close relationship with both rotating speed of rotor and damping of bearing under constant acceleration. When rotating acceleration is small and damping is large, the transient response is not sensitive to the variation of rotating speed; otherwise the imbalance response with constant acceleration and the response in stable state will build up obvious differences near critical rotating speed.

研究结果表明：在恒加速条件下，转子同频振动分量与转子的转速、支承阻尼等因素密切相关，当角加速度较小且阻尼较大时，其瞬态响应对转速的波动不敏感；而当角加速度较大或阻尼较小时，恒加速过程不平衡响应与稳态响应在临界转速附近将产生明显的差异。

The first part of this paper includes reviews of the scientific investigations on solar flares, prominences and coronal mass ejections and on the steady and transient flows of solar wind in interplanetary space, discussions of the solar and interplanetary origins of the space weather, and descriptions of the history and the latest development of MHD simulation in solar-terrestrial space physics.

本文首先回顾了太阳耀斑、日珥和日冕物质抛射三类太阳活动现象以及太阳风的稳态流动和瞬态流动等行星际空间现象，讨论了空间天气的太阳和行星际起源，介绍了日地物理研究中数值模拟发展的历史及最新进展。

Thesis is in simple introduction a few analysis method and steady data of fettles with the foundation of the characteristic sketch of the data of instantaneous fettle lastly, put forward vibration signal of some concrete problem.

论文在简单介绍几种分析方法以及稳态数据和瞬态数据的特征图形的基础上，提出了振动信号中的若干具体问题。

This dissertation has combined model experiment and numerical simulation and detailedly analyzed the SPRT and hydraulic grade line method for leak detection. This method is superior to others on low expense and simple maintenance. It is practical for actual projects

本文综合运用了模型试验和数值计算的方法对输液管道泄漏监测方法进行了较全面的分析，得到了瞬态识别和稳态定位的监测方法，该方法简单易行并且造价低对长距离输液管道的泄漏监测非常实用。

Regarding a tractive elevator as example, according to the drawing and measurement of its parts, and computing with Ansys, its dynamic parameters are obtained, which are used in analysis of horizontal direction vibration with Matlab.

第五章，在电梯数值计算模块的基础上，开发了电梯动态特性仿真平台，并用来进行电梯各种工况下模态分析、谐响应分析、瞬态动力学响应分析。

This thesis is based on crane dynamic theory and finite element theory, and utilized software platform of ANSYS. It realizes model analysis and transient analysis of steel rope and bridge structure. The data and conclusion offered effective method to bridge crane design. The thesis mainly includes:According to crane dynamic theory, established relevant dynamic model, and analyzed the dynamic properties of the bridge structure of the bridge crane, including the natural frequency, the model shape and the dynamic stress. A way to analyse the dynamic response of the bridge structure of the bridge crane which takes into account the dynamic properties of the steel rope pulley block has been explored successfully.

本文基于有限元理论和起重机动力学理论，以有限元分析软件ANSYS为平台，实现了计算机对钢丝绳系统和桥架的模态分析和瞬态动力学分析，得到的分析数据和结论对桥式起重机动态设计提供了有效的手段，论文主要内容包括：根据起重机动力学理论，建立了相关动力学模型，并对桥架结构进行动态性能分析(包括固有频率、振型以及动应力)的分析，探索出一种考虑钢丝绳滑轮组的动态特性在内的桥式起重机桥架结构动态应力分析的方法。

The thesis mainly includes: According to crane dynamic theory, established relevant dynamic model, and analyzed the dynamic properties of the bridge structure of the bridge crane, including the natural frequency, the model shape and the dynamic stress. A way to analyse the dynamic response of the bridge structure of the bridge crane which takes into account the dynamic properties of the steel rope pulley block has been explored successfully.

本文基于有限元理论和起重机动力学理论，以有限元分析软件ANSYS为平台，实现了计算机对钢丝绳系统和桥架的模态分析和瞬态动力学分析，得到的分析数据和结论对桥式起重机动态设计提供了有效的手段，论文主要内容包括：根据起重机动力学理论，建立了相关动力学模型，并对桥架结构进行动态性能分析（包括固有频率、振型以及动应力）的分析，探索出一种考虑钢丝绳滑轮组的动态特性在内的桥式起重机桥架结构动态应力分析的方法。

The simulation system is based on the network environment. And it is intended to analyze and calculate the physical process of the reactor core, the main loop system and steam generator, etc., as well as to simulate the normal operation and transient accidents.

仿真系统基于计算机网络环境，可对10 MW高温气冷堆(HTR 10)的堆芯、主回路系统和蒸汽发生器等部件进行分析计算，模拟稳态和瞬态过程，并以图形界面动态显示仿真过程。

A detailed model of non-linear parametric excitation vibration coupling the stay cable and the girder, in which the static sag as well as the geometric non-linearity are considered, is proposed in this paper. Based on several numeric examples investigated by the Galerkin method composed with the integration strategy, several kinds of factors effecting stay cable parameter vibration are studied. Another parameter vibration model by the axial excitation is presented and the corresponding nonlinear equations are derived. The smallest excitation amplitude,the transient state and steady state resonance amplitudes, and the changing characteristics of the axial force are obtained by using harmonic balance method. According to numerical examples calculated by numerical integration method, the effects of the inner damping of the stay cables are investigated.

本文创新地提出了斜拉桥拉索-桥面耦合参数振动模型，推导了索-桥耦合非线性参数振动方程组，联合Galerkin法及数值积分方法，对各种特性的拉索进行了数值求解，得出了影响拉索参数振动的各种因素；提出了斜拉索受轴向端激励参数振动模型，导出了模型的非线性振动方程，使用谐波平衡法得出了产生参数振动需要的最小激励幅值、共振时瞬态及稳态的振动幅值及索拉力的变化特性，并用数值积分方法对实际斜拉桥拉索进行了计算，分析了拉索阻尼对参数振动的影响。

Arrhenius equation was employed to describe the relationship between the viscosity and the temperature.

测定了该离子液体的密度、熔点及溶解性等物理性质，研究了其在稳态、瞬态和动态条件下的流变行为。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。