查询词典 load

The system voltage instability risk indices that are obtained using the risk assessment method include the voltage instability probability, expected load curtailment to avoid voltage instability, and the relationship between load curtailments and voltage instability probability.

该方法考虑发电机可用发电容量、电网结构及负荷的概率不确定性因素，利用蒙特卡洛模拟法抽样系统样本，并以所提电压稳定校正控制方法来判断样本的静态电压稳定性以及对样本进行电压稳定校正控制。

In this paper, test research have been performed on the two important mechanical properties indicator compressive modulus of elasticity and shear modulus. Numerical simulation has been performed on the base of results of test under the situation uniform and uneven thickness of elastomer layer, which analyze internal stress distribution of the elastomeric bearing, as follows:(1) The traditional test methods of compressive modulus of elasticity test are rather cumbersome and take up experimentalists lots of time. This paper has improved the traditional test methods of compressive modulus of elasticity test, which has collected the holding-load time together to concentrate on holding load. The tests have been performed on different types of bearings, which results show that the results of the improved test method conform to the error range regulated by the standard and can effectively save time for the experimentalists, also eliminate the accumulative error.

本文主要对板式橡胶支座的抗压弹性模量、抗剪弹性模量两个重要力学性能指标进行试验研究，并在试验结果的基础上对均匀胶层厚度和不均匀胶层厚度两种情况进行数值模拟，分析橡胶支座内部应力分布规律，具体内容如下：(1)传统抗压弹性模量试验方法比较繁琐，占用试验人员大量时间，本文对传统抗压弹性模量试验方法进行了改进，将持荷时间集中起来进行集中持荷，通过对不同类型支座进行试验，试验结果表明该改进试验方法所得结果符合标准规定误差范围，为试验人员节省了大量时间，并且还消除了传统方法中的累计误差。

In order to decrease energy consumption and load fluctuation acting on the cutting head of roadheader, pick arrangement and kinematic parameters of cutting head are optimized based on the optimization strategy of average load of every pick and number of picks cutting simultaneously.

针对掘进机截割头载荷波动和能耗问题，基于各截齿受力均匀和同时参与截割的截齿数保持恒定的优化策略，对截齿排列参数和截割头运动参数进行了多目标优化设计。

The cutting pattern and load curves of cutting process of the two cutting heads were given by computer simulation, which showed that the cutting performance of the cutting head with pick arrangement based on equal-rise-angle spiral line was good because of its reasonable pick cut, its uniform cutting pattern and the small value and the fluctuation of its load.

为了评价利用等螺旋升角进行截齿排列设计的截割头的截割性能，选用了一个实际的截割头进行比较，通过计算机仿真获得两个截割头截割过程的切屑图和载荷曲线，经比较分析表明，用等螺旋升角排列截齿的截割头截槽合理，各段切屑图均匀，载荷大小及其波动较小，截割性能良好，所以用等螺旋升角排列截齿是一种高效、实用的截齿排列方法。

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。

Freq. recovery time as load increases AT 30% rated load.

3负载增加后的频率恢复时间？0%额定负荷），s

According to the experiment type, the generator experiment- analyzing program draws out waveforms of 0-load test, three- phase shortcircuit test and sudden load-throwing test, and figure out some specific generator parameters.

分别针对空载试验、短路试验及甩负荷试验绘制空载饱和及非饱和曲线、短路曲线及甩负荷频率、水压、接力器行程、功率曲线，同时计算发电机试验参数，如饱和度，短路比，接力器不动时间等。

The square of the r.m.s. load voltage represents the power dissipated in a purely resistive load whose resistance remains

负载电压的平方值表明了功率消耗为阻性负载的持续温度。

It performances meet IEC420《AC H.V. Load Switch with Fuse》(1990 Edition)and GB3804 《3-63kv AC H.V.Load Switch》after strict test and long-time operating. Compared to the product of the kind in the foreign country,its technical parameter has reached the international level with the features of small volume and light weight. Can be used widely in 12kv distribution network to protect the equipment against working without phase.

该产品经全面型式试验和长期和试运行考核，性能达到EC420《交流高压负荷开关一熔断器组合电器》（1990版）和GB3804《3-63kv交流高压负荷开关》标准要求，与国外同类产品比较，技术参数已达到同类产品水平，具有体积小，重量轻，可用于环网柜和箱式变电站，广泛应用于12kv线路的电能分配，并有效地避免了设备的缺相运行。

The results of conversion show that the serious disc must be rejected because its reliable L-HCCF life is greatly less than an overhaul period. Finally, the load distribution of centrifugal and vibration force on labe is derived. Using two method, load on the crack labe gradually reducing and keeping constant with the crack propagation, a crack propagation analysis of fir-tree slot is carried out, and the calculating L-HCCF crack propagation life of slot on the unload method, which is nearly 3 times longer than that on constant method, is 20 times shorter than the pure low cycle life, and agree well with the experimental's.

最后，分析了离心力载荷和振动载荷在榫齿上的分布，进行了榫槽榫齿的有限元计算；提出了枞树型榫槽的卸载概念，并按带裂纹榫齿上的承载随裂纹增长而逐步减少和始终保持不变两种处理方法，进行了复合疲劳裂纹扩展及其寿命计算，由计算得出卸载下复合疲劳裂纹扩展寿命较单纯低周疲劳寿命下降二十多倍；按卸载处理的疲劳裂纹扩展寿命是按恒载处理的三倍多，前者与试验吻合，而后者则偏差较大。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"