In view of trust region algorithm has good global convergence for solving non-linear quadratic programming problem,the effective elastic module s damage factor and the damage distribution function is introduced by FEM updating.
鉴于信赖域算法在求解非线性二次规划问题中具有良好的全局收敛特性,同时结合有限元模型修正技术,引入有效弹性模量损伤因子和损伤分布函数的概念,在Matlab编程环境下调用ANSYS有限元程序中的APDL语言进行桥梁空间结构的有限元建模,利用信赖域算法调整局部单元(组)的参数,通过连续损伤分布插值多项式拟合连续区段各单元(组)的损伤分布曲线,进而实现了对连续梁桥的动力损伤识别。
This paper explains the basic thought and numerical method of a FEM updating approach that has achieved the level of practical engineering application.
从工程应用的角度讨论了有限元模型修正技术的一些关键性问题 ,并且提出了作者的观点 ;提供了一个比较成熟的、达到实际工程应用水平的修正方法的基本思路和计算过程 ,指出了修正技术在实际应用中可能遇到的困难及其解决途
Response-surface based on finite element model updating of bridge structures;
基于响应面的桥梁有限元模型修正
Finite element model updating is one of important research contents in bridge health monitoring system.
有限元模型修正是桥梁健康监测的重要内容之一,由于初始的简化假设,边界条件模拟的差异以及非结构构件等因素的影响,建立的有限元模型总与实际有出入,计算值和试验测量值不能很好的一致,这给桥梁的状态评估、剩余寿命的预测增加了困难。
We used optimization design principle as basic tool for the structure FEM correction and combined the optimization principle with software of FEM analysis.
为了给桅杆结构的健康监测研究提供一个较为准确的有限元基准模型,采用规划优化算法作为桅杆结构模型修正的基本工具,同时将优化算法与大型有限元分析软件相结合,首先,利用ANSYS软件仿真得到桅杆结构的一组动力响应数据,并将它作为模拟的实测数据,用以作为有限元模型修正的基准。
However,FEM correction is the foundation of realizing guyed mast s safety pre-wa.
而结构有限元的修正,是实现桅杆结构安全预警的基础,本文以这样一个实际工程中的疑难问题为背景,提出了桅杆结构有限元模型修正的理论和方法。
Finite Element Model Updating of Complex Structure Using Component Mode Synthesis Technique
基于模态综合技术的结构有限元模型修正
Finite Element Model Updating of Existing Steel Pipe Concrete Arch Bridge
既有钢管混凝土拱桥的有限元模型修正
FEM Correction for the Guyed Mast Structure Based on Optimization;
基于优化原理的桅杆结构有限元模型修正
Finite Element Model Updating and Application Study Based on the Frequency Response Function;
基于频响函数的有限元模型修正及其应用研究
Research on the Application of Finite Element Model Updating Technique in Bridge Engineering;
有限元模型修正技术在桥梁工程中的应用研究
Research on FEM Model Updating in Spatial Reticulated Structural Dynamics;
空间网格结构动力有限元模型修正的分析研究
Dynamic and Static-based Finite Element Model Updating of Bridge Structures;
基于静动力的桥梁结构有限元模型修正
The Finite Element Model Correction of Space Truss Structure Based Neural Net;
基于神经网络的空间网架有限元模型修正
Finite Element Model Updating Method Study Based on the Genetic Algorithm;
基于遗传算法的有限元模型修正方法研究
FE Model Updating and Optimization Analysis on Body-in-white;
轿车白车身有限元模型修正与优化设计
Research on Finite Element Model Updating of Chongqing CaiYuanba Yangtze River Bridge
重庆菜园坝长江大桥有限元模型修正研究
Finite Element Model Updating of Bridge Structures Based on Static Test Data
基于静力测试数据的桥梁结构有限元模型修正
IMPROVED FINITE ELEMENT METHOD BASE ON GALERKIN VARIATION AND IT'S APPLICATION IN SEEPAGE ANALYSIS
基于Galerkin变分的渗流场有限元模型修正算法
MULTI-PHASE FE MODEL UPDATING ON LONG-SPAN CABLE-SUPPORTED BRIDGES
大跨度缆索支撑桥梁分阶段有限元模型修正
An Inexact Steepest Descent Method for Finite Element Model Updating Problem
有限元模型修正问题的不精确最速下降迭代解
Finite Element Model Updating for Cable-Stayed Bridge Based on Field Testing
基于现场测试的斜拉桥有限元模型修正
Objective Functions and Algorithms in Structural Dynamic Finite Element Model Updating
结构动力学有限元模型修正的目标函数及算法
Finite element model updating of a long-span steel skybridge
大跨度高空钢结构连廊的有限元模型修正
