查询词典 static load

An equal cross-section blade was investigated and a finite element model was built parametrically. Geometrical parameters (such as length, width and thickness), material parameters (such as young's modulus and density) and speed of blade were considered as input random variables while the static frequencies and dynamic frequencies were output random variables. Combining the finite element method, response surface method and Monte Carlo method, the statistical properties and cumulative distribution functions of static frequencies and dynamic frequencies were obtained. Probability sensitivities analysis, which combined the slope of the gradient and the width of the scatter range of the random input variables, was applied to quantitatively evaluate the sensitivities of static frequencies and dynamic frequencies with respect to the random variables. The Scatter plots of structural responses with respect to the random input variables were illustrated how to adjust the values of the static frequencies and dynamic frequencies by changing input random variables.

文中以某试验台用汽轮机等直叶片为研究对象，考虑几何参数、材料参数和转速的随机性，通过有限元参数化建模，将确定性有限元方法、响应面方法和Monte-Carlo模拟法相结合，从而获得了叶片静频、动频的统计特性和累积分布函数；同时考虑随机变量的梯度和离散范围对静、动频的影响，通过概率敏感性分析，定量地判断出叶片静、动频对随机输入变量的敏感性；通过绘制叶片静、动频与输入变量的散点图，定量地分析了如何改变随机变量以调整静、动频率的方法。

Based on varying process of generator terminal parameters after excitation fault, shortages of excitation protective principle of static stability boundary and asynchronous impedance boundary are analyzed. It proposed that excitation fault research relates to large-disturbance stability. Because dynamic power-angle character of generator after excitation fault is non-sinusoidal, there are differences between dynamic power-angle character and static state power-angle character. So it isn't ideal to protective operation result based on small-disturbance stability and static stability boundary criterion. At the same time, it proposed that asynchronous boundary impedance criterion is a constant reactive power circle moving adown j Xd′. It can ensure complete loss-of-excitation generator measuring impedance enter into the circle, but can't ensure the other condition measuring impedance including impossible losing synchronism enter. So loss-of-excitation protection would be maloperation when system voltage drops short and recovers or generator rejects load.③Based on stability principle, it puts forward setting conditions and calculation method of generator loss-of-excitation protection by direct measuring power-angle.

以励磁故障后发电机端的相关参数的变化为基础，通过对以静稳定边界和异步阻抗边界作判据的两类三种现行励磁保护在原理上存在的缺陷分析，发现：励磁故障是一个大干扰稳定性问题，励磁故障后的发电机的动态功角特性与静态功角特性有很大的差异，已远非正弦曲线，因此基于小干扰稳定性原理、以静稳定边界作判据的保护必然动作不理想；异步边界阻抗判据是一个下移j Xd′的等无功阻抗圆，它可以保证完全失磁后的发电机测量阻抗能进入该阻抗圆，但不能保证完全失磁之外的其它状态不会进入该阻抗圆，因此在系统电压短时下降或发电机突然甩负荷等情况下可能启动该保护使之误动。

Mechanical seal assembly: In the dynamic and static loop mirror coating on the 20th floor cleaner lubricants; add lubricant bearing guided, first gently positioning ring static load bearing guide; longer shaft add the oil, the mechanical seal part of the dynamic ring gently into the shaft, the hand-push retractable seal ring should be able to freely (Note that dynamic and static part of the anti-ring to the assembly site to be in place).

机械密封装配：在动、静环镜面上涂一层洁净的20号润滑油；导轴承座抹上润滑油，先把静环轻轻定位装入导轴承座；再在泵轴上抹上润滑油，把机械密封的动环部分轻轻装渗透泵轴上，用手轻推密封环应能伸缩自如（注意动、静环部分的防转部位需装配到位）。

Mechanical seal assembly: In the dynamic and static loop mirror coating on the 20th floor cleaner lubricants; add lubricant bearing guided, first gently positioning ring static load bearing guide; longer shaft add the oil, the mechanical seal part of the dynamic ring gently into the shaft, the hand-push retractable seal ring should be able to freely (Note that dynamic and static part of the anti-ring to the assembly site to be in place).

机械密封装配：在动、静环镜面上涂一层洁净的20号润滑油；导轴承座抹上润滑油，先把静环轻轻定位装入导轴承座；再在泵轴上抹上润滑油，把机械密封的动环部分轻轻装入泵轴上，用手轻推密封环应能伸缩自如（注意动、静环部分的防转部位需装配到位）。

Mechanical seal assembly: In the dynamic and static loop mirror coating on the 20th floor cleaner lubricants; add lubricant bearing guided, first gently positioning ring static load bearing guide; longer shaft add the oil, the mechanical seal part of the dynamic ring gently into the shaft, the hand-push retractable seal ring should be able to freely (Note that dynamic and static part of the anti-ring to the assembly site to be in place).

机械密封装配：在动、静环镜面上涂一层洁净的20号润滑油；导轴承座抹上润滑油，先把静环轻轻定位装入导轴承座；再在泵轴上抹上润滑油，把机械密封的动环部分轻轻装入泵轴上，用手轻推密封环应能伸缩自如（注重动、静环部分的防转部位需装配到位）。

Static load model and Jacobin comparable matrixs structures features were analyzed ,the results showed that the Jacobin comparable matrix characteristic would be changed after considered the load character, which have an impact on the static voltage stability.

并分析两种负荷模型与潮流雅可比矩阵的结构和特点，研究表明计及负荷特性后将改变雅可比矩阵的特征值，从而影响了系统的静态电压稳定性。

Through calculation and analysis of static modal under dead load, live load and water load, we derived the non-seismic internal force and deforming of the structure.

通过对静力模型在恒载、活载和水荷载作用下的计算和组合，得到了结构非抗震设计的内力和变形。

Then, we can simulate its transient, static process with no load, full load, shock load and parametric change using MATLAB Artificial Toolbox and the M－File. Also, we can analyze and discuss the gained oscillogram.

本设计完成了在机组空载运行、满载运行、突加负载和突卸负载运行时，以及在改变系统参数的情况下的计算机仿真研究，并讨论了参数对系统的影响。

The results of simulations of three-graded-concrete supported beam under dynamic load show that in the impact load the carrying capacity improved and the displacement decreased when specimen failed, and without inial static load, it is dangerous that material tensile strength and elastic modulus were improved to its 1.3 times in the code.

三级配混凝土动载数值模拟结果表明，在短时高速的冲击荷载作用下，试件的极限承载力提高，破坏时的位移降低；在没有初始静载的情况下，规范规定的把材料的抗拉强度和弹性模量提高1.3倍所得极限承载力相对较大。

Five suitable load models for the Taipower system are adopted here in order to discuss the effect of the load characteristics on the setting of the overcurrent relay at the time of the incident, as a basis for setting the system coordination:(1) Static ZIP model;(2) Dynamic Motor model;(3) Composite load model;(4) PTI IEEE model;(5) Exponential model.

采用五种适於台电系统之负载模型：(1)静态ZIP模型、(2)动态Motor模型、(3)复合模型、(4)PTI IEEE模型、(5)指数模型，探讨当发生事故时负载特性对过电流电驿设定之影响，以作为系统保护协调设定之依据。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。