动力计算

首先利用ANSYS程序建立了永安桥的动力计算模型，通过模态分析得到该桥的动力特性。采用标准反应谱作为输入的谱曲线，分别考虑了纵向、横向、竖向输入下该桥的地震响应。

Firstly , the dynamic calculation model of the Yong-an Bridge is developed with ANSYS and the dynamic properties are obtained through modal analysis during which the standard seismic response spectrum is inputted from longitudinal , transverse and vertical direction respectively .

针对桥梁台后结构损伤分别进行了动力计算和静力试验，提出了采用BP神经网络进行结构损伤位置和程度的识别诊断研究，试验结果表明比较准确可信，该方法具有良好的应用前景。

Dynamic calculation and static test are made on structural damage behind abutment . BP neural network is introduced for identification and diagnosis of the site and degree of damage . Test results show this method is accurate and reliable , which has good application prospect .

采用VISUALBASIC和VisualFORTRAN混和编程方式，利用动态链接库技术，开发了直流锅炉水动力计算软件。

By means of mix code technology , Visual Basic and Visual Fortran are used for the hydraulic characteristic calculation software development of once-through boiler . The paper takes No.

600MW超临界CFB锅炉的水动力计算

Hydrodynamic calculation of 600 MW supercritical CFB boiler

LGA风机圆盘式消声器的有限元动力计算

Finite ? Element Calculation of the Dynamic Structure about a Disc Muffler of LGA Fan

本文第三部分介绍了抗震分析方法，然后利用有限元程序Midascivil建立了马新大桥主桥的动力计算模型，采用反应谱法对其进行地震反应分析。

Then , the dynamic model for one practical bridge is utilized through finite element general program MIDAS CIVIL . And response spectrum method is used in the calculation of the seismic response of Maxin bridge .

应用了Newmark方法对导线进行了非线性分析，及应用非线性有限元动力计算方法对相邻导线靠近的最小距离进行计算。

Newmark method was applied to analyze theoretical results , and non linear finite method was applied to calculate the minimum space between two conductors in motion .

简化了空间螺旋回转运动过程，通过CFX水动力计算方法进行回转特性分析，估算回转半径。

The space helix turning motion is simplified , and a method for analyzing the turning characteristics and estimating the turning circle radius with CFX hydrodynamic calculation is presented .

基于有限元理论，应用大质量法（LMM）和拱脚固定法建立大跨度钢箱提篮连拱桥的空间动力计算模型。

Based on finite element theory , the3 dimensional dynamic evaluation model of long-span X-style steel box-section arch bridge was created with large-mass method ( LMM ) and fixed arch foot method .

管土相互作用中，传统的水动力计算采用Morison方程，但实验表明，Morison方程在计算管道受力的大小和相位上存在缺陷。

The Morison equation was adopted to calculate the hydrodynamic force in the traditional pipe / soil interaction . But through the experiment , the Morison equation has the disadvantage in calculating the pipeline 's force of magnitude and phase .

通过动力计算分析，根据岩石内部应力的变化使用Hoffman失效准则研究了岩石的破碎过程。

Based on the change of the stress in inner rock and dynamic transient analyses , the rock breaking process is studied by means of Hoffman failure criteria , and the comparisons between the partial results of simulation and the results of experimentation are made .

应用参数识别技术提高有限元动力计算的精度

Modal Parameter Identification Applied to Improving Accuracy in FEM Dynamic Computation

框架内力估算汽车气动力计算

Estimation internal forces of frameworks Calculation of Flow Field of Automobile

带转换层高层建筑结构的静力及动力计算方法的研究

The Research on Calculation of the Tall Building with Transformed Structure

斜压能量转换引起台风暴雨的动力计算

Dynamical calculation of typhoon heavy rain caused by baroclinic energy conversion

关于能源平衡表动力计算办法改进的探讨

A discussion on improving power calculation methods in energy balance table

后掠水翼水动力计算的升力面方法

A lifting surface method for predicting hydrodynamic characteristics of swept hydrofoil

沉箱式防波堤动力计算中附加水质量的实验研究

Experimental Study on Hydrodynamic Mass for Dynamic Calculation of Caisson Breakwater

这对层状的岩体中的工程动力计算有其积极意义。

It is valuable for the dynamic calculation of rock engineering .

火箭弹快速空气动力计算模型研究

Research of Aerodynamic Calculation Model of Fast Rocket Design System

战术弹纵横向气动力计算方法

A method for calculating longitudinal and lateral aerodynamic characteristics of tactical missiles

薄壁结构动力计算中一维有限元方法的应用

Application of Single-Dimension-Finite-Element Method in Thin-walled Structures ' Dynamic Calculation

滑翔增程弹气动力计算及分析

Calculation and Analysis the Aerodynamic Characteristics of the Glide Bullet

运输类飞机翼身组合体参数化及快速气动力计算研究

Investigation of parameterized wing-body of transportation aircrafts and quick aerodynamic numerical calculation

有限深水中沉井的水动力计算

Calculation of Hydrodynamic Coefficients of A Caisson in Finite-Depth Waters

装载机工作装置油缸被动力计算方法

The Calculation Method of the Cylinder Driven Forces in Loader Working Device

能量元及其在连续介质动力计算中的应用

Energy Element and Its Application in the Dynamic Calculation of Continuous Medium

发电机端部绕组电动力计算及振动分析

Electrodynamic Force Calculation and Vibration Analysis of the End Winding of Turbo-generators

铁路轨道接头动力计算理论的探讨

On the Theory of Computing Dynamic Loads on Rail Joints

梁系结构在低速冲击下的动力计算方法

Kinetic Calculation Methods of Beam System Under Low Velocity Impact