An improved method for structural damage identification based on residual force vector is presented.
提出了一种改进的残余力向量法用于工程结构损伤识别。
The first step identifies the location of the possible damaged poles by analyzing the joint residual force vector.
在无噪声的情况下，使用任意一阶模态数据，残余力向量法都能够对损伤进行准确定位。
The average force vector quantities in all area were improved after training in the left hemiplegia and the healthy people(P<0.05).
正常人和左侧偏瘫患者各区力向量均值在训练后均有明显改善（P<0.05）。
Based on the initial parameter method, a concise relation between displacement vector and force vector at both ends of the pipe is obtained.
借助初参数法的思路，建立管两端位移、内力向量间的关系。
A new two-step damage identification method based on residual force vector considering the impact of measurement error (noise) in most cases is proposed.
提出了一个考虑模态噪声影响的基于残余力向量法的损伤识别两步法。
In recent years, the method based on residual force vector (RFV) and applied in structure damage identification has been concerned and some achievements were achieved.
近年来基于残余力向量法的损伤识别技术受到了关注并取得了一定的研究成果。
Then, based on the CR formulation, the internal force vector and tangent stiffness matrix of large rotation and small strain space bar and plane beam element are deduced.
其次，基于CR列式法推导出了大旋转小应变空间杆单元及平面梁单元的内力矢量及切线刚度矩阵；
To fly the aircraft in anything other than a hover the control vanes are used to create a force vector to tilt the machine in the desired direction much like a Helicopter rotor.
飞行中的飞机以外的悬停控制叶片被用来创造一个倾斜力向量机在希望的方向就像直升机旋翼。
The final finite-volume discretization equations are derived using the Hamilton principle. Meanwhile the global nodal force vector, mass matrix and tangent stiffness matrix of the cable are obtained.
再根据哈密顿原理导出了悬索大挠度振动的有限体积离散方程，推出了索的整体节点力向量、质量矩阵和切线刚度矩阵。
Now,the other kinds of vector fields we have seen physically are force fields.
我们从物理的角度,研究的另一类向量场是力场。
We have the cross-product of the position vector to this point times the force.
我们用这个点的，位置向量，乘以这个力。
Hopefully most of you know that the electric field is a vector field that basically tells you what kind of force will be exerted on a charged particle that you put in it.
希望大多数人都知道电场是向量场，电场描述了，对场中的带电小颗粒的力的作用。
You know.. it’s not the length of the vector that counts… it’s how you apply the force
你知道……不是向量的长度决定……是你用多大的力决定。
You know.. it's not the length of the vector that counts… it's how you apply the force
你知道……不是向量的长度决定……是你用多大的力决定。
There is another thing that we know because if a force derives from a potential 0 then that means its curl is zero Thats the criterion we have seen for a vector field to derive from a potential.
我们还知道,如果力是由势产生的,那么其旋度是,这就是我们得到的,关于从势产生的向量场的准则。
M the object has a mass m, mg and so there is a force mg, and I can write down the force in vector notation.
物体质量为，因此有重力，我可以用向量符号，表示这个力。
According to the principle of virtual-work, the formula of electromagnetic force based on magnetic vector potential is deduced.
根据虚位移原理，推导出基于矢量磁势的电磁力计算公式。
This article presents the unit vector method for the full shaking force balancing of multi-loop spatial linkages.
本文提出了多环空间连杆机构摆动力完全平衡的单位向量法。
Experiments show that the molecular force of attraction and repulsion of the vector.
实验表明，分子力为吸引力和排斥力的矢量和。
Finally vector distribution map, end region leakage reactance and distribution of force on end region winding are achieved.
最后得出了端部磁场矢量分布图，端部漏抗值及端部绕组的电磁力分布规律。
Gravitational field is a kind of vector field, and the description of gravitational force by general relativity is very effective.
引力场是一种矢量场，广义相对论对引力问题的描述是非常有效的。
The paper analyzes the force harmonics of the permanent magnet synchronous linear motor considering the end effects while the vector control technology is applied.
分析矢量控制时，端部效应对永磁同步直线电机电磁推力谐波分量的影响，通过直线电机和旋转电机的实验数据比较，证明了理论分析的正。
With force free model, it is shown that the photospheric transverse current is independent of the sense of the transverse field and can be found completely by vector magnetographic measurement.
并证明了光球横向电流与横向磁场的指向无关，因而完全可以由向量磁象仪测定。
Moreover total virtual alternation force of the entities is the vector sum between all intersected cubes on two kinds of FV and ee basic contact modes.
而其实体的总的虚拟交互力是在FV和EE两种基本接触模式下所分割的所有立方体间的矢量和。
And displays the structure endogenic force characteristic of these three kinds of different vector high ratio intuitively by the massive illustrations and forms.
并以大量的插图、表格直观地表现这三种不同矢高比时结构的内力特征。
The secondary velocity vector plots show that the migration of the secondary vortex across the main flow was influenced by flow rates which made the centrifugal and Coriolis force changing.
二次流矢量图表明流量的改变影响了离心力和哥氏力在流动中的作用，导致在垂直于主流方向引起截然不同的二次涡旋流动。
In this paper it is shown that there are two vector constants of the motion for a charged particle in the central field of force.
证明了带电粒子在有心力场中运动时有两个守恒矢量。
In this paper it is shown that there are two vector constants of the motion for a charged particle in the central field of force.
证明了带电粒子在有心力场中运动时有两个守恒矢量。
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