Particle Damping Technology Based Structural Control (Springer Tracts in Civil Engineering)

✍ Scribed by Zheng Lu, Sami F. Masri, Xilin Lu

• Publisher: Springer
• Year: 2020
• Tongue: English
• Leaves: 375
• Category: Library

✦ Synopsis

This book presents a systematic introduction to particle damping technologies, which can be used to effectively mitigate seismic-induced and wind-induced vibration in various structures. Further, it offers comprehensive information on the latest research advances, e.g. a refined simulation model based on the discrete element method and a simplified simulation model based on equivalent principles. It then intensively studies the vibration attenuation effects of particle dampers subjected to different dynamic loads; in this context, the book proposes a new damping mechanism and “global’’ measures that can be used to evaluate damping performance.

Moreover, the book uses the shaking table test and wind tunnel test to verify the proposed simulation methods, and their satisfactory damping performance is confirmed. To facilitate the practical engineering application of this technology, optimization design guidelines for particle impact dampers are also provided. In closing, the bookoffers a preliminary exploration of semi-active particle damping technology, which holds great potential for extension to other applications in which the primary system is subjected to non-stationary excitations.

✦ Table of Contents

Preface
Contents
1 Introduction to Structural Vibration Control Technology
1.1 Passive Control
1.1.1 Base Isolation
1.1.2 Seismic Energy Dissipation
1.1.3 Passive Tuned Vibration Absorption
1.2 Active Control
1.3 Hybrid Control
1.4 Semi-active Control
1.4.1 Active Variable Stiffness System
1.4.2 Active Variable Damping System
1.4.3 Active Variable Stiffness/Damping System
References
2 Origination, Development and Applications of Particle Damping Technology
2.1 Basic Concept and Development of Particle Damping
2.1.1 Basic Traditional Particle Dampers
2.1.2 Development of Particle Dampers
2.2 Damping Mechanism and Theoretical Analysis of Particle Damping
2.2.1 Damping Mechanism of Particle Damping
2.2.2 Nonlinear Energy Sink (NES)
2.2.3 Theoretical Analysis of Particle Damping
2.3 Numerical Simulation of Particle Damping
2.3.1 Discrete/Distinct Element Method (DEM)
2.3.2 Simplified Analytical Method
2.3.3 The Coupled Algorithm of FEM and DEM
2.4 Experimental Study of Particle Damping
2.5 Application of Particle Damping Technology
2.5.1 Particle Damping Applications in Aerospace Field
2.5.2 Particle Damping Applications in Machinery Field
2.5.3 Particle Damping Applications in Lifeline Engineering
2.5.4 Particle Damping Applications in Civil Engineering
2.6 Discussion
References
3 Theoretical Analysis and Numerical Simulation of Particle Impact Dampers
3.1 Steady-State Response of Structures with Particle Impact Dampers
3.1.1 Steady-State Response of Structures with an Impact Damper
3.1.2 Steady-State Motion of Multi-unit Impact Dampers
3.1.3 Steady-State Motion of Impact Damper—Tuned Absorber Combination
3.1.4 Steady-State Solution and Stability Analysis of Particle Dampers
3.2 Simplified Analytical Method
3.2.1 Equivalent Principles
3.2.2 Parameter Selection
3.2.3 Program Compiling
3.3 Spherical Discrete Element Simulation
3.3.1 Fundamental Principles of Discrete Element Method
3.3.2 Spherical Discrete Element Modeling
3.3.3 Program Compiling
3.4 Verification of Spherical Discrete Element Simulation
3.4.1 Ideal Test Verification
3.4.2 Shaking Table Test Verification
References
4 Performance Analysis of Particle Dampers Attached to Single-Degree-of-Freedom (SDOF) Structures
4.1 Analytical Solution to a Particle Damper Attached to a SDOF Structure
4.1.1 Computational Model
4.1.2 Analytical Solution Method
4.2 A Particle Damper Attached to a SDOF Structure Under Free Vibration
4.3 A Particle Damper Attached to a SDOF Structure Under Simple Harmonic Vibration
4.3.1 Effects of Particles’ Number, Size and Material
4.3.2 Effects of Container’s Size
4.3.3 Effects of Particles’ Mass Ratio
4.3.4 Effects of External Excitation’s Frequency
4.4 A Particle Damper Attached to a SDOF Structure Under Random Vibration
4.4.1 Performance Analysis Under Random Vibration with Different Characteristics
4.4.2 Stationary Random Excitation in the X Direction Only
4.4.3 Correlated Stationary Random Excitations in the X and Y Directions
4.4.4 Uncorrelated Stationary Random Excitations in the X and Y Directions
4.4.5 Discussion
4.4.6 Parametric Study
4.4.7 Performance Comparison Between Particle Dampers and Multi-unit Impact Dampers
References
5 Performance Analysis of Particle Dampers Attached to Multi-degree-of-Freedom (MDOF) Structures
5.1 Analytical Solution to a Particle Damper Attached to a MDOF Structure
5.1.1 Computational Model
5.1.2 Analytical Solution Method
5.2 A Particle Damper Attached to a MDOF Structure Under Free Vibration
5.3 A Particle Damper Attached to a MDOF Structure Under Random Vibration
5.3.1 Parametric Study
5.3.2 A Particle Damper Attached to a MDOF Structure Under Nonstationary Random Excitation
References
6 Shaking Table Test Study on Particle Damping Technology
6.1 Shaking Table Test of a Three-Story Steel Frame Attached with a Particle Damper
6.1.1 Experiment Design
6.1.2 Results of Shaking Table Test
6.1.3 Verification of Discrete Element Model
6.2 Shaking Table Test of a Five-Story Steel Frame Attached with a Particle Damper
6.2.1 Experiment Design
6.2.2 Results of Shaking Table Test
6.2.3 Verification of Simplified Equivalent Model
References
7 Wind Tunnel Test Study on Particle Damping Technology
7.1 Experiment Design
7.2 Results of Wind Tunnel Test
7.2.1 Dynamic Characteristics of Test Model
7.2.2 Parametric Study
7.2.3 Effects of Wind Field
7.3 Numerical Simulation of Wind Tunnel Test
7.3.1 Brief Description of Simplified Simulation Method
7.3.2 Simulation Parameter Determination
7.3.3 Simulation Results
References
8 Optimization Design of Impact Dampers and Particle Dampers
8.1 Optimization Design of Impact Dampers
8.1.1 Hybrid System
8.1.2 Application
8.1.3 Discussion
8.2 Optimization Design of Particle Dampers
8.2.1 Methodology and Finite Element Model
8.2.2 Optimal Design Procedure
8.2.3 Reliability of Control Performance
References
9 Semi-active Control Particle Damping Technology
9.1 Preliminary Concepts of Semi-active Control Particle Damping Technology
9.2 Semi-active Control Algorithm and Numerical Simulation Studies
9.2.1 Semi-active Impact Dampers (SAID) Attached to Linear Structures
9.2.2 Semi-active Impact Dampers Attached to Nonlinear Structures
9.3 Implementation Scheme of Semi-active Control Particle Dampers
References