The time-stepping FEM model for the dynamic analysis of power system is established considering the nonlinear characteristics of internal generators and typology structures of external circuit.
建立了既考虑发电机内部非线性又考虑外部电路拓扑结构的用于系统动态分析的时步有限元模型。
Conjugate gradient method were choosed to solve the large sparse matrix equations induced by the FEM and computer language FORTRAN was used to programme the numerical simulation system software.
选择共轭梯度法解决由有限元法形成的大型稀疏矩阵方程,应用FORTRAN语言编制了数值模拟系统软件。
The effect of the centrifugal force on tool system characteristics is analyzed with the advanced nonlinear FEM technology.
文章通过先进的非线性有限元技术分析了离心力对刀具系统特性的影响。
As all mentioned above, FEM can optimize cathodic protection system, enhance the precision of corrosion monitoring, evaluate corrosion status and study the law of corrosion.
此计算方法对于优化阴极保护系统,提高腐蚀监测精度和技术、评价腐蚀状况、研究腐蚀规律具有重要作用。
There are mainly three methods in the second system stress analysis of the orthotropic steel deck, P-E method, the equivalent girder beam method and the FEM.
薄壁钢扁平箱梁正交异性板钢桥面系第二体系应力的计算方法主要有P -E法、等效格子梁法和有限元法等。
Through analysis of the coupling problem between structure and ideal liquid, some researches were done on the dynamic responses of solid liquid coupling system using FEM.
通过对结构与理想流体耦合问题的分析,利用有限元方法对流固耦合系统动力响应进行了研究。
Using the FEM tool ANSYS to do analysis on the levitation and propulsion systems of high-speed maglev vehicle and the levitation system of low-speed maglev vehicle.
运用有限元分析软件ANSYS对高速磁浮列车的悬浮和牵引系统以及低速磁浮列车的悬浮系统进行了全面的分析。
The transient heat transfer process of piston set-cylinder liner system in gasoline engine was researched with direct coupling finite element method (FEM).
采用直接耦合的有限元分析方法对一汽油机的活塞组—气缸套系统的瞬态传热过程进行了研究。
Explain the basic theory that will be used in analyzing the continuous extrusion deformation system FEM method.
针对进行连续挤压成形系统有限元分析所需的理论基础做了说明。
Based on elastic FEM theory and heat transfer theory, the author USES I-DEAS software as a CAE tool, builds the finite element analysis method and techniques of the principle shaft system on work.
本文采用I -DEAS软件作为计算机辅助分析的工具,基于弹塑性有限元理论和传热学理论,建立了工作状态下主轴系统的有限元分析方法及技术处理方法。
The FEM(finite element method) of the main shaftclamping apparatus-cutter system for DMU-70V NC high speed machining was built, and the results of the FEM were validated using dynamic test.
建立了DMU-70V五轴数控高速加工中心主轴-夹具-刀具系统的有限元模型,并利用动态测试的方法对有限元计算结果进行验证;
The positive pressure distribution on the bearing surface of screw down system of 950 primary mill was studied using FEM and the corresponding improvement way has been put forward.
通过有限元分析,研究了950开坯机压下系统球面轴承表面正压力的分布情况,并据此提出了相应的改进措施。
The incremental motion equations of a M DOF structural system excitated by seismic waves are formulated based on FEM, and a seismic response model for cable stayed bridges are proposed.
基于有限单元法,推导出多自由度结构体系在地震作用下的增量形式的运动方程,建立了大跨度斜拉桥的地震激励模型。
This system has the functions of structure parameter optimization, shape optimization, FEM and its pre-processing and post-processing.
该系统能时机座进行结构参数优化、有限元分析、形状优化以及有限元前后置处理功能。
An analysis and calculation of the suspension system of maglev ball by finite element method (FEM) and similarity principle is presented.
提出用有限元法及相似原理来分析、计算磁悬浮球的悬浮系统。
In this paper, the pre and post process system (POPPS) for stretch forming simulation with FEM is presented.
介绍了飞机蒙皮拉形过程有限元分析软件的前后置处理系统POPPS。
The system is composed of two Daisy chained crates in which there are multiple FEM modules and their interface FEMI. 128 channels of the wire signals are received and processed by each FEM.
该系统由多个机箱组成,每个机箱中有多个FEM插件和它们的接口FEMI,每个FEM接收并处理128路丝信号。
For the applications of the metal stamping numerical simulation system in the rolling stock manufacture, the forming parameters are all optimized in finite element method (FEM).
分析了冲压成形数值仿真系统在铁路车辆制造中的应用,指出了用显式有限元分析的方法,可以对冲压成形中各方面的参数进行优化处理。
An experimental transfer function of the model was acquired by the system identification, and also the function is checked by the result derived from FEM model.
利用传递函数法进行了平台结构模型的系统识别,并与有限元模型进行了比较。
Using FEM to model the rotor system of ultra supercritical steam turbine, treating the rotating rotor and static bearing-foundation as a coupling whole, the program is compiled.
考虑汽流激振的超(超)临界汽轮机转子系统的稳定性分析是个较新的课题。
In Chapter Four, according to the methods of establishing rapid variant design of part family's FEM model based on SML, mentioned above, it develops the system of this function.
第四章,根据前文所述建立零件族有限元模型快速变型设计方法的内容,开发了基于事物特性表的零件族有限元模型快速变型设计系统。
A coupling dynamics FEM model of guardrail and vehicle crashing system is built in this paper in accordance with the W-beam semi-rigid guardrail used widely in express way.
针对高速公路广泛使用的波形梁半刚性护栏建立“护栏—汽车”碰撞体系耦合动力学有限元模型,研究护栏立柱对汽车绊阻效应的形成过程,提出解除护栏立柱对汽车绊阻效应的一种有效方法。
Based on an axisymmetric unsteady conduction model by FEM, a numerical analysis model of unsteady heat transfer for the piston-liner coupling system of combustion chamber in an I.
本文在轴对称不稳定热传导有限元分析模型的基础上,提出了一个内燃机燃烧室的活塞与缸套偶合系统的不稳定传热数值分析模型。
This paper deals with the mechanical model from FEM analysis and the structural optimum design, which can be computed by means of the program system DDDU-2.
本文探讨了某特种车车身的有限元分析和结构优化设计的力学模型,利用DDDU - 2程序系统进行了计算。
Therefore, it needs to establish the buckle to hang the system the non-linear finite element analysis model of cable-stayed system in the FEM of structure.
在进行有限元结构分析时,需要建立扣挂系统的非线性有限元分析模型。
Voltage equations and a torque formula were employed in load characteristics analysis to establish the relation between FEM results and control performance in an actual system.
为了建立实际系统中有限元计算结果和控制性能之间的关系,电压方程和转矩公式用于负载特性分析中。
With FEM used to simulate the rotor system on which the looseness fault is occurring, the fault characteristics are obtained as follows.
采用有限元方法对发生松动故障的转子系统进行模拟,得到系统的故障特征。
The dynamic analysis of this small substructure system was made by FEM with quadrilateral isoparametric elements.
用等参数有限元法对这个小结构系统进行动力分析。
In this paper, based on the dynamical equation of magnetic bearing-rotor system, the critical speeds of the rotor for a high speed machine by means of finite element method (FEM) are calculated.
在本文中,根据磁轴承-转子系统的动力学方程,为高速机的转子临界转速的有限元法(FEM)的方式计算出来的。
For the multiphase flow measuring system on-line based on three dimension finite element method (3d FEM), the capacitance-based multiphase flow which is connected to the oil pipeline is a column.
基于三维有限元法的在线多相流测量系统,所接入输油管道的电容式多相流为圆柱形。
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