實時耦聯(lián)動力試驗的大規(guī)模數(shù)值模擬研究與應用

目錄

第1章緒論

1.1工程背景與研究意義

1.2實時耦聯(lián)動力試驗技術

1.2.1傳統(tǒng)動力試驗方法

1.2.2實時耦聯(lián)動力試驗

1.3實時耦聯(lián)動力試驗研究進展

1.3.1試驗系統(tǒng)的發(fā)展

1.3.2數(shù)值積分算法

1.3.3時滯及時滯補償算法

1.3.4時滯穩(wěn)定性分析

1.3.5非線性數(shù)值子結構的求解

1.3.6試驗應用

1.4調諧液柱阻尼器

1.4.1數(shù)值與試驗研究

1.4.2工程應用

1.5本書的主要工作與創(chuàng)新點

1.5.1本書的主要工作

1.5.2本書的創(chuàng)新點

第2章基于雙目標機的RTHS系統(tǒng)構建及驗證

2.1引論

2.2清華大學RTHS系統(tǒng)

2.3雙目標機RTHS系統(tǒng)構建

2.3.1數(shù)值子結構計算的任務分解策略及應用

2.3.2位移外插及內插策略

2.4雙目標機RTHS系統(tǒng)的數(shù)值驗證

2.4.1計算精度

2.4.2計算能力

2.5雙目標機RTHS系統(tǒng)的試驗驗證

2.5.1單層鋼架有限元地基模型

2.5.2試驗結果

2.6基于雙顯式數(shù)值積分算法的時滯補償法

2.6.1雙目標機RTHS系統(tǒng)中的反饋力協(xié)調性問題

2.6.2補償算法的提出及特性分析

2.6.3數(shù)值算例驗證

2.6.4RTHS試驗驗證

2.7本章小結

第3章多自由度RTHS系統(tǒng)的時滯穩(wěn)定性分析

3.1引論

3.2基于離散根軌跡法的時滯穩(wěn)定性分析模型

3.2.1離散根軌跡法

3.2.2多自由度RTHS系統(tǒng)時滯穩(wěn)定性分析模型

3.3兩自由度結構的RTHS系統(tǒng)時滯穩(wěn)定性分析

3.3.1失穩(wěn)機理分析

3.3.2參數(shù)影響分析

3.3.3考慮不同時滯補償算法的穩(wěn)定性分析

3.4時滯穩(wěn)定性的RTHS驗證

3.4.1考慮有限元數(shù)值子結構及單源時滯

3.4.2考慮有限元數(shù)值子結構及多源時滯

3.5本章小結

第4章不同數(shù)值積分算法的時滯穩(wěn)定性和精度分析

4.1引論

4.2不同數(shù)值積分算法在RTHS系統(tǒng)中的特性變化

4.2.1典型數(shù)值積分算法簡介

4.2.2理論分析

4.3數(shù)值算法的時滯穩(wěn)定性分析

4.3.1純時滯條件下的時滯穩(wěn)定性分析

4.3.2考慮時滯補償?shù)臅r滯穩(wěn)定性分析

4.4數(shù)值算法的時滯精度分析

4.4.1基于數(shù)值模擬的精度分析

4.4.2基于離散根軌跡的精度分析

4.5數(shù)值算法時滯穩(wěn)定性和精度的RTHS驗證

4.6本章小結

第5章調諧液柱阻尼器的減震性能研究

5.1引論

5.2TLCD減震機理

5.2.1單自由度結構TLCD系統(tǒng)動力方程

5.2.2參數(shù)影響分析

5.3TLCD減震控制的RTHS驗證

5.3.1試驗思路

5.3.2試驗模型

5.3.3結構TLCD系統(tǒng)的穩(wěn)定性分析

5.3.4基于RTHS的TLCD減震試驗

5.4基于RTHS的TLCD參數(shù)影響分析

5.4.1質量比

5.4.2結構阻尼比

5.4.3結構剛度變化

5.4.4地震加速度峰值

5.5MTLCD用于單自由度鋼架的減震控制

5.6本章小結

第6章調諧液柱阻尼器在高層結構減震中的應用試驗

6.1引論

6.2多自由度結構TLCD系統(tǒng)動力方程

6.2.1多自由度結構STLCD系統(tǒng)

6.2.2多自由度結構MTLCD系統(tǒng)

6.3足尺TLCD結構地基系統(tǒng)的RTHS試驗方法

6.4試驗模型

6.4.1九層Benchmark鋼結構

6.4.2足尺TLCD模型

6.5STLCD控制的RTHS試驗

6.5.1STLCD動力特性

6.5.2試驗結果及分析

6.6MTLCD控制的RTHS試驗

6.6.1MTLCD控制一階振型響應

6.6.2MTLCD控制多階振型響應

6.7考慮結構地基相互作用的RTHSTLCD試驗

6.7.1試驗框架

6.7.2考慮有限地基SSI效應

6.7.3考慮半無限地基SSI效應

6.8本章小結

第7章調諧液體阻尼器關鍵問題研究

7.1引論

7.2基于RTHS的TLD非線性剛度阻尼模型驗證

7.2.1非線性剛度阻尼模型

7.2.2RTHS試驗驗證

7.3TLD幾何尺寸效應影響研究

7.3.1考慮幾何尺寸效應的試驗結果

7.3.2考慮質量比尺的試驗結果

7.4TLD與TLCD減震效果對比

7.4.1試驗模型

7.4.2試驗結果

7.5本章小結

第8章結論與展望

8.1主要研究成果和結論

8.2研究展望

參考文獻在學期間發(fā)表的學術論文與研究成果致謝Contents實時耦聯(lián)動力試驗的大規(guī)模數(shù)值模擬研究與應用

Contents

Chapter 1Introduction

1.1Background and Research Significance

1.2RealTime Hybrid Simulation Technique

1.2.1Traditional Structural Dynamic Experiments

1.2.2RealTime Hybrid Similation

1.3Review of RealTime Hybrid Simulation

1.3.1Development of Experimental System

1.3.2Numerical Algorithms

1.3.3Time Delay and Compensation Methods

1.3.4DelayDependent Stability Analysis

1.3.5Nonlinear Numerical Substructure

1.3.6Application

1.4Tuned Liquid Column Damper

1.4.1Numerical and Experimental Study

1.4.2Practical Application

1.5Research Content and Highlight

1.5.1Research Content

1.5.2Highlight

Chapter 2Construction and Verification of RTHS System Based on Dual 

Target Computers

2.1Introduction

2.2RTHS System in Tsinghua University

2.3Construction of RTHS System Based on Dual Target 

Computers

2.3.1Task Splitting Strategy in Numerical Substructure 

Analysis

2.3.2Displacement Extrapolation and Interpolation

2.4Numerical Verification

2.4.1Computational Accuracy

2.4.2Computational Capability

2.5Experimentional Verification

2.5.1Single FrameFinite Element Foundation Model

2.5.2Experimental Results

2.6Time Delay Compensation Method Based on Guiλ 

Algorithn

2.6.1Incoordination between the Real and Desired 

Feedback Forces

2.6.2The Proposed Time Delay Compensation Method 

and Its Characteristics

2.6.3Numerical Verification

2.6.4RTHS Verification

2.7Summary

Chapter 3DelayDependent Stability Analysis of MDOFRTHS System

3.1Introduction

3.2Theoretical Model for Stability Analysis Based on 

DiscreteTime Root Locus Technique

3.2.1DiscreteTime Root Locus Technique

3.2.2The Construction of Stability Analysis Model for 

MDOFRTHS System

3.3DelayDependent Stability Analysis of 2 DOFs RTHS 

System

3.3.1Instability Mechanism Analysis

3.3.2Parameter Impact Analysis

3.3.3Stability Analysis Considering Different TimeDelay 

Compensation Methods

3.4RTHS Verification

3.4.1Finite Element Numerical Substructure with Single 

Delay Source

3.4.2Finite Element Numerical Substructure with Multiple 

Delay Source

3.5SummaryChapter 4Stability and Accuracy Investigation of Different Integration 

Algorithms

4.1Introduction

4.2Characteristics of Different Integration Algorithms in RTHS 

System

4.2.1Brief Introduction of CommonlyUsed Integration 

Algorithms

4.2.2Theoretical Analysis

4.3DelayDependent Stability Analysis of Integration 

Algorithms

4.3.1Consideration of Pure Time Delay

4.3.2Consideration of Time Delay Compensation

4.4DelayDependent Accuarcy Analysis of Integration 

Algorithms

4.4.1Accuarcy Analysis Based on Numerical Simulation

4.4.2Accuarcy Analysis Based on DiscreteTime Root 

Locus Technique

4.5RTHS Verification

4.6Summary

Chapter 5Seismic Performance Analysis of Tuned Liquid Column 

Damper

5.1Introduction

5.2Absorption Principle of TLCD

5.2.1Dynamic Equation of SDOF StructureTLCD 

System

5.2.2Parametic Analysis

5.3RTHS Verfication of Control Effect of TLCD

5.3.1Experimental Method

5.3.2Experimental Model

5.3.3Stability Analysis of StructureTLCD System

5.3.4RTHS of StructureTLCD System

5.4Parametic Analysis of TLCD Based on RTHS

5.4.1Mass Ratio

5.4.2Structural Damping Ratio

5.4.3Structural Stiffness

5.4.4Peak Ground Acceleration

5.5Application of Applying MTLCD to Control SDOF Frame

5.6Summary

Chapter 6Experimental Study of Dynamic Response of HighRise 

Structure under TLCD Control

6.1Introduction

6.2Dynamic Equation of MDOF StructureTLCD System

6.2.1MDOF StructureSTLCD System

6.2.2MDOF StructureMTLCD System

6.3RTHS Method of FullScale TLCDStructureFoundation 

System

6.4Experimental Model

6.4.1NineStory Benchmark Steel Structure

6.4.2FullScale TLCD Model

6.5RTHS of STLCD

6.5.1Dynamic Characteristic of STLCD

6.5.2Expeimental Results

6.6RTHS of MTLCD

6.6.1Using MTLCD Control the FirstOrder Modal 

Response

6.6.2Using MTLCD Control the MultiOrder Modal 

Response

6.7RTHSTLCD Considering SoilStructure Interaction

6.7.1Experimental Framework

6.7.2Considering SSI in Finite Foundation

6.7.3Considering SSI in SemiInfinite Foundation

6.8Summary

Chapter 7Key Issue Study of Tuned Liquid Damper

7.1Introduction

7.2RTHS Verfication of Nonlinear StiffnessDamping Model 

for TLD

7.2.1Nonlinear StiffnessDamping Model

7.2.2RTHS Verification

7.3Investigation of Size Effect of TLD

7.3.1Experiment Considering Size Effect

7.3.2Experiment Considering Mass Ratio Effect

7.4Comparison of Control Effect Between TLD and TLCD

7.4.1Experimental Model

7.4.2Experimental Results

7.5Summary

Chapter 8Conclusion and Prospect

8.1The Main Research Result and Conclusion

8.2Prospect