Advances in Applied Nonlinear Dynamics, Vibration and Control -2021: The proceedings of 2021 International Conference on Applied Nonlinear Dynamics, Vibration ... Notes in Electrical Engineering Book 799)

Contents Smart Shock Absorber 1 Introduction 2 Configuration and Working Mechanism 3 Experimental Test and Simulation 3.1 The Mechatronic Performance Test 3.2 The Kinematic and Dynamic Properties 4 Conclusions 5 Methods 5.1 Fabrication of the Smart Shock Absorber 5.2 Simulation Approach Appendix A. Supporting Information References Experimental Test on the Dynamic Damping Performance of Energy Harvesting Shock Absorbers with Overrun Clutch Under Open Circuit Condition 1 Introduction 2 Structure and Test Bench of EHSA 2.1 The Structure and Working Principle of EHSA 2.2 The Test Bench and Test Principle 3 Results and Discussion 4 Conclusions References Cyber Attacks on Remote State Estimation in Cyber-Physical Systems: A Game-Theoretic Approach 1 Introduction 2 Problem Setup 2.1 System Model 2.2 Payoff Models of Defense and Attack 3 Establish of the Game Between Defender and Attacker 4 A Modified NSGA-II Algorithm 4.1 Preliminaries 4.2 Process of the NSGA-II Algorithm 4.3 Improved Crossover Operator 5 Numerical Examples 5.1 Diversity of Solutions 5.2 Optimal Actions for both Defender and Attacker 6 Conclusion References Nonlinear Output Feedback Control of Three-Dimensional Underactuated Shipboard Rotary Cranes 1 Introduction 2 Dynamic Model and Transformation 3 Controller Design and Stability Analysis 3.1 Controller Design 3.2 Stability Analysis 4 Simulation Results 5 Conclusions References A Novel Sliding Mode Control Method for Tower Crane Systems by Employing Beneficial Disturbance Effects 1 Introduction 2 Problem Formulation 2.1 Error Dynamic Model 2.2 Control Objective 3 Main Results 3.1 Nonlinear Disturbance Observer Design 3.2 Disturbance Effect Indicator 3.3 A Novel Sliding Mode Control Method Design and Stability Analysis 3.4 Simulation Results and Analysis 4 Conclusion References Analysis and Design of an X-Structured Nonlinear Energy Harvesting System: A Volterra Series-Based Frequency Domain Method 1 Introduction 2 Mathematical Model of the X-structured Harvesting System 3 Generalized Frequency Response Functions 4 Output Frequency Response Function and Power Generation Function 5 Case Study 6 Conclusions Appendix References The Fretting Characteristics of the Annular Flat Contact Interface in Heavy-Duty Gas Turbine 1 Introduction 2 Modified Archard Equation 2.1 Finite Element Model of Annular Flat Connection Structure 3 Simulation Results of Fretting Wear Under Different Rod Parameters 3.1 The Mistuning of Single Tie Rod 3.2 The Radial Position of Tie Rod 3.3 The Number of Tie Rod 4 Fretting Wear Under Different Material Parameters of Discs 4.1 The Influence of the Friction Coefficient 4.2 The Influence of Poisson’s Ratio 4.3 The Influences of the Elastic Modulus 5 Conclusions References A Novel Nonlinear Transmissibility Function-Based Method for Diagnosing Shaft Cracks of Rotating Machineries 1 Introduction 2 Dynamic Model of the Rotor with Breathing Cracks 2.1 Breathing Crack Model 2.2 Dynamic Model of Cracked Rotor 3 A Novel Breathing Crack Diagnosing Method 3.1 Damage Indicator 3.2 Method Procedures 4 Numerical Study 4.1 Case Setup 4.2 Analysis of Results 5 Conclusions and Discussions References Research on a Limited NES with Forced Vibration 1 Introduction 2 Modeling 3 Approximate Solution 3.1 Fitting the Piecewise Restoring Force 3.2 Harmonic Balance Method 4 Theoretical Analysis and Experimental Study 4.1 Mutual Verification 4.2 Influence of Limiting Stiffness and Gap 5 Conclusions References Efficiency Enhancement of a Disc-Shaped Triboelectric Energy Harvester with a Magnetic Bistable Mechanism 1 Introduction 2 Prototype Design 3 Theoretical Model 3.1 Mechanical Model 3.2 Electrical Model 4 Numerical Simulations 4.1 Influence of Potential Well 4.2 Basins of Attraction 4.3 Effect of Number of Sectors 5 Conclusions References Suspension Dynamics Analysis and LMS Adaptive Control of a Hoop Flexible Structure 1 Introduction 2 Suspension and LMS Control Principle 2.1 Suspension Dynamics Analysis 2.2 LMS Adaptive Control 3 Case Analysis 3.1 Mode Analysis 3.2 Simulation Analysis 4 Conclusions References Adaptive Neural Asymptotic Tracking Control of MIMO Stochastic Non-strict-feedback Nonlinear Systems 1 Introduction 2 Problem Formulation and Preliminaries 3 Control Design with Barrier Lyapunov Function 4 Numerical Example 5 Conclusions References A Nonlinear Coupling-Based Motion Trajectory Planning Method for Double-Pendulum Rotary Crane Subject to State Constraints 1 Introduction 2 Modeling and Dynamics of Double-Pendulum Rotary Crane 2.1 Model of a Double-Pendulum Rotary Cranes 2.2 Dynamic Analysis 3 Trajectory Planning 3.1 Positioning Trajectory Planning 3.2 Swing-Eliminating Trajectory Planning 4 Simulation Results and Analysis 4.1 Comparative Simulation 4.2 Robustness Verification 5 Conclusions References Observer-Based Adaptive Optimized Control for Stochastic Nonlinear Systems with State Constraints 1 Introduction 2 Problem Formulation 2.1 System Descriptions 2.2 Preliminary Knowledge 3 Main Results 3.1 State Observer Design 3.2 Adaptive Stochastic Control Design and Stability Analysis 4 Simulation Example 5 Conclusion References Dual-Loop Adaptive Dynamic Programming for Autonomous Vehicle Trajectory Following Control Against Actuator Faults 1 Introduction 2 System Modeling and Problem Formulation 2.1 Vehicle Dynamic Model and Kinematic Model 2.2 Vehicle Model Considering Actuator Faults 3 Fault-Tolerant Tracking Controller Design 3.1 Outer Loop Online Tracking Controller 3.2 Inner Loop Online Tracking Controller Against Actuator Faults 3.3 Main Results 4 Simulation Investigations 5 Conclusion References An Improved Adaptive Output Tracking Control for Three-Dimensional Overhead Cranes with Double-Pendulum Effect 1 Introduction 2 Three-Dimensional Overhead Cranes with Double-Pendulum Modeling and Control Objective 2.1 System Modeling 2.2 Control Objective 3 Controller Design 4 Results and Discussion 4.1 Simulation Conditions 4.2 Comparative Simulations 4.3 Robust Performance 5 Conclusion References Nonlinear Resonance of an Axially Moving Strip Plate with Clamped Hinged Constraint Under a Harmonic Line Load 1 Introduction 2 The Nonlinear Vibration Equation 2.1 Kinetic Energy and Deformation Potential Energy 2.2 External Force Work 2.3 The Vibration Equation 3 Multi Scale Method for the Solution of Principal-Internal Resonance 4 Stability Analysis 5 Numerical Simulations 5.1 Variation of Amplitude with Tuning Value of External Excitation Frequency 5.2 Variation of Amplitude with External Excitation Amplitude 6 Conclusions References A New Semi-active Control Strategy and Its Application in Railway Vehicles 1 Introduction 2 Establishment of a Quarter Vehicle Model 3 The Proposed Semi Active Control Strategy 4 Transmission Characteristic Analysis 5 Co-simulation Analysis of the Whole Vehicle 5.1 Safety Analysis 5.2 The Ride Comfort Analysis 5.3 Wheel Wear Analysis 6 Semi-active Control Analysis Under Different Worn Treads of Wheels 7 Conclusion References Backstepping Sliding Mode Control for Magnetic Suspension System of Maglev Train with Parameter Perturbations and External Disturbance 1 Introduction 2 Dynamics Development and Analysis 3 Controller Design and Analysis 4 Numerical Simulation 5 Conclusion References On Intercultural Communication Control from the Perspective of Trans-disciplinarity 1 The Concept of Trans-disciplinarity 2 Language and Culture 3 Integration Between Intercultural Communication and Trans-disciplinarity 4 Conclusion References Identifiability of the Delay Parameter for Time-Delay Boolean Networks 1 Introduction 2 Preliminaries 2.1 Notations 2.2 Time-Delay Boolean Networks and Cheng Product 3 Main Results 3.1 Observation Conditions 3.2 Identification of the Delay Parameter 4 Conclusion References Nonlinear Multivariable Controller Design and Performance Analysis of an Air-Handling Unit via Backstepping Method 1 Introduction 2 Nonlinear Multivariable Dynamic Modeling of AHU System 3 Nonlinear Multivariable Controller Design via the Backstepping Method 4 Evaluations and Discussions 5 Conclusions References Analysis of an Arm-Toothed Rotary Electromagnetic Energy-Harvesting Damper 1 Introduction 2 Prototype Design, Test Setup, and Model Verification 3 Results and Discussions 4 Conclusions References Analysis of Dynamic Behavior Affecting the Isolation Effect of the QZS System with Nonlinear Hysteretic Damping 1 Introduction 2 Static Analysis of QZS System with Hysteretic Damping 3 The Dynamic Behavior of QZS System with Hysteretic Damping in Idealized Equilibrium State 3.1 Primary Resonance 3.2 One-Third Subharmonic Resonance 4 The Dynamic Behavior of QZS System with Hysteretic Damping at Equilibrium Point with Linear Stiffness 5 The Dynamic Behavior of QZS System with Hysteretic Damping at Disequilibrium Point 6 Conclusion References Mixed H∞/passive Vibration Control for Nonlinear Active Suspension of In-Wheel Motor Driven Electric Vehicles Subject to Finite-Time State Constraint and Input Saturation 1 Introduction 2 Nonlinear Uncertain Active Suspension Model 3 Main Results 3.1 Preliminaries 3.2 Mixed H∞/passive Output-Feedback Controller Design 4 An Illustrative Example 5 Conclusions References Dynamic Analysis of Nonlinear Multi-degree-of-Freedom System Subjected to Combined Gaussian and Poisson White Noises 1 Introduction 2 Direct Probability Integral Method Based on PDIE 2.1 PDIE for Gaussian White Noise and Poisson White Noise 2.2 Numerical Solving Procedure of Probability Density Integral Equation 3 Numerical Examples 3.1 Nonlinear SDOF System Under Combined Gaussian and Poisson White Noises 3.2 2-DOF System Under External Excitation of Combined Gaussian and Poisson White Noises 4 Conclusions References Optimal PMU Placements Considering System Change 1 Introduction 2 Mathematical Model of PMU Placements 2.1 Sample Observability Analysis 2.2 Basic Model for PMU Placement 3 Influence of System Change on Observability 3.1 Effect of Zero Injection 3.2 Effect of Network Structure Change 3.3 Effect of Flow Measurements Change 4 PMU Placement Model in the New System 4.1 Observable Buses 4.2 Mathematical Model of PMU Placement Considering Zero Injection 4.3 Mathematical Model of PMU Placement Considering ZIB and Flow Measurements 5 Example Analysis 6 Conclusion References A Crack Position Identification Method for the Hollow Shaft Rotor System Based on the Convolutional Neural Network 1 Introduction 2 Dynamic Response Analysis of a Dual-Disks Hollow Shaft Rotor with a Breathing Crack 2.1 The Motion Equation of the Crack Rotor System 2.2 Equation Solving 2.3 Dynamic Response Analysis 3 The Crack Location Diagnosis Method Based on the Convolutional Neural Network 3.1 Network Structure of CNN 3.2 Identification of Crack Position with CNN 3.3 Feature Space Visualization 4 Conculsions References Optimization of a Quasi-zero-Stiffness Isolator via Oblique Beams 1 Introduction 2 Analysis of an Oblique Beam 2.1 Modelling of the Restoring Force 2.2 The Negative-Stiffness Stroke 3 Analysis on the QZS Isolator 3.1 Dynamic Model of the Nonlinear Isolator 3.2 Estimation of the Frequency Threshold 4 Optimization Results and Discussions 4.1 The Maximum Negative-Stiffness Stroke 4.2 The Lowest Frequency Threshold 5 Conclusions References Equivalent Linearization Analysis of Electromagnetic Energy Harvesters Subjected to Gaussian White Noise 1 Introduction 2 Dynamic Model 3 Equivalent Linearization Analysis 4 Theoretical and Numerical Analysis 5 Discussion About the Shape of Potential Energy Function 6 Conclusion References Effect of Nonlinear Factors on Disturbance Characteristics of the Solar Array Drive System on Spacecraft 1 Introduction 2 Dynamic Modeling of the Solar Array Drive System 2.1 Model of the Drive Control 2.2 Model of the Drive Assembly 2.3 Model of the Solar Array 2.4 Combination of the System Model 3 Test Verification of the Model of Solar Array Drive System 3.1 Test of Disturbance Characteristics 3.2 Analysis of Test Results 4 Analysis of the Influence Factors of the SADS’s Disturbance Characteristics 4.1 Effect of the Current Subdivision on the Disturbance Characteristics 4.2 Effect of the Gear-Meshing Stiffness and Transmission Error on the Disturbance Characteristics 4.3 Effect of the Clearance Between the Gear Teeth on the Disturbance Characteristics 4.4 Effect of the Sliding Friction Between the Brush and Slip Ring on the Disturbance Characteristics 5 Conclusion References Adaptive Fuzzy Decentralized Dynamic Surface Control for Fractional-Order Nonlinear Large-Scale Systems 1 Introduction 2 Problem Formulations and Preliminaries 2.1 System Descriptions 2.2 Preliminaries 3 Adaptive Fuzzy Decentralized DSC Design and Stability Analysis 4 Conclusion References Influence of Eccentric Angle on Dynamic Characteristics of Rotor System 1 Introduction 2 Theoretical Analysis 2.1 Rubbing Force 3 Model Verification 4 Numerical Simulation 4.1 Results for φ = 0° 4.2 Results for φ = 45° 4.3 Results for φ = 90° 4.4 Results for φ = 135° 4.5 Results for φ = 180° 5 Conclusion References A Six-Node Triangular Shell Based on the Local Frame of Lie Group 1 Introduction 2 Deformation Description 3 Equilibrium Equations 4 Finite Element Discretization 5 Strain Interpolation Schemes 6 Numerical Examples 6.1 Cantilever Plate Subjected to End Moment 6.2 Slit Annular Plate Under Transverse Line Load 6.3 Pinched Cylinder with Free Edges 6.4 Spherical Shell with an 18° Hole 7 Conclusions Appendix References Factors Affecting Electrical Impedance Tomography: A Review 1 The Introduction 2 Research Status of EIT 3 The Electrode Array 3.1 Electrode Shape 3.2 Electrode Array Excitation Mode 4 Direct Problem 4.1 The Maxwell Equations 4.2 Algorithm of Direct Problem Solved 4.3 Field Subdivision Problem 5 Inverse Problem 5.1 Factors Affecting Imaging Quality in Inverse Problem 5.2 Examples of Typical Algorithms 6 Conclusion References Characteristic of Band Gaps in Two-Dimensional Solid/Liquid Phononic Crystals 1 Introduction 2 Description of the Model and Method of Calculation 3 Results and Discussion 3.1 Influence of Lattice Constant on BS and First Complete BG 3.2 Influence of the Filling Rate of the Scatterer on BS and First Complete BG 3.3 Influence of Scatter Shape on BS and First Complete BG 4 Conclusions References Active Disturbance Rejection Control of All-Clamped Plate Structure with Inertial Actuator Based on Frequency Response Method 1 Introduction 2 Problem Formulation 2.1 Inertial Actuator Modeling 2.2 Electromechanical Coupling Model of IAACP 2.3 Frequency Domain Test of Transfer Function of IAACP 3 Control Scheme 3.1 LADRC Design 3.2 Frequency Characteristics of LADRC 3.3 LADRC-Based IAACP Stability Analysis 3.4 Relationship Between LADRC and 2dof PID 4 Experimental Results and Analysis 4.1 Structure of IAACP Experimental Platform 4.2 Experimental Results 5 Conclusion References Analysis of Aero-Engine Inter-shaft Bearing Stiffness 1 Introduction 2 Stiffness Analysis Model of Inter-shaft Bearing 3 Calculation Results and Analysis 3.1 Co-rotating Inter-shaft Bearing 3.2 Counter-Rotating Inter-shaft Bearing 4 Conclusions References Design and Analysis of Vibration Reduction System to Improve the Track Accuracy of Robot Arm-Tip 1 Introduction 2 Vibration of Arm-Tip 3 Vibration Reduction Method 3.1 Shock Absorber Principle 3.2 Design of Shock Absorber 4 Simulation Verification and Analysis 4.1 Parameter Determination 4.2 Simulation and Analysis of the Scheme 5 Conclusion References Dynamic Analysis of a Novel Zero-Stiffness Vibration Isolator by Considering Frictional Force Involved 1 Introduction 2 The Model of the Zero-Stiffness System 2.1 Designing of the Structure and Static Performance 2.2 Designing of the Curved Rod 3 Dynamic Analysis with Friction Consideration 4 Conclusions References Enhanced Modeling Method of Asymmetric Nonlinear Magnetic Force for Multi-stable Energy Harvesters 1 Introduction 2 Modelling of Asymmetric Multi-stable Energy Harvesters 2.1 Multi-stable Energy Harvesters 2.2 Modelling of Nonlinear Restoring Force 3 Numerical Simulation of Magnetic Force 3.1 Verification of Asymmetric Nonlinear Restoring Force 3.2 Parameters Analysis of Asymmetric Nonlinear Restoring Force 4 Dynamic Response Analysis 5 Conclusions References Parametric Instability of an Electromechanically Coupled Rotor-Bearing System Subjected to Periodic Axial Loads: A Preliminary Theoretical Analysis 1 Introduction 2 The Mathematical Model 3 Multiple Scales Method for Dynamic Analysis 4 Numerical Simulation 5 Conclusion Appendix A Appendix B References Identification of Stiffness Force in Nonlinear Piezoelectric Structures Based on Hilbert Transform 1 Introduction 2 Description of Typical Nonlinear Piezoelectric Structures 3 The Hilbert Transform-Based Method 3.1 Identification Method Based on Force Excitation 3.2 Identification Method Based on Free Decay 4 Numerical Investigations 4.1 Quasi-zero Stiffness Structures Identification 4.2 Bistable Structures Identificaiton 4.3 Tristable Structures Identificaiton 5 Experimental Verifications 6 Conclusions References Green’s Functions for the Forced Vibration Analysis of Multi-cracked Euler-Bernoulli Curved Beam with the Inclusion of Damping Effects 1 Introduction 2 Green’s Functions for Euler–Bernoulli Curved Beams with Damping Effect 3 Green’s Function for a Curved Beam with One Crack 4 Green’s Functions for a Multi-cracked Curved Beam 4.1 Transfer Relation at Cracked Positions 4.2 Determination of the Unknown Constants 4.3 Coordinate Transformation 5 Numerical Results and Discussion 5.1 Validity of Present Solutions 5.2 Effects of Crack Depth and Location 5.3 Effect of the Radius of Curved Beam 5.4 Interaction Between Two Cracks 6 Conclusions References Centrifugal Inertia for Sensitivity Reduction of Energy Harvesting Backpack Performance to Carried Mass 1 Introduction 2 Dynamics of Energy Harvesting Backpack with Linear Mass 3 Modeling of Energy Harvesting Backpack with Centrifugal Inertia 3.1 Design of Centrifugal Inertia 3.2 Modeling and Problem Formulation 4 Dynamics of Energy Harvesting Backpack with Centrifugal Inertia 4.1 Dynamic Analysis of the Centrifugal System 4.2 Simulation of the Harvesting System 5 Conclusion References Numerical Simulation of the Rigid-Liquid Coupling Dynamics of Spacecraft 1 Introduction 2 Finite-Element ALE Simulations of Liquid Sloshing 2.1 Governing Equations and Boundary Conditions 2.2 Pressure Stabilized CBS-Based Finite Element Method 2.3 Mesh Updating Strategy 2.4 Implementation of the Contact Angle Boundary Condition 3 Rigid-Liquid Coupling Dynamics of Spacecraft 3.1 The Liquid Sloshing Force and Torque of the Rigid Body 3.2 Rigid Body Dynamics Equation 4 Numerical Results 4.1 Validation of the Rigid-Liquid Coupling Dynamics of Spacecraft 4.2 Rotating Maneuver of Liquid-Filled Spacecraft with Spherical Tank 5 Conclusion References Comparative Analysis of Static Characteristics Between the Five-Pad Tilting-Pad and the Five-Lobe Journal Bearings 1 Introduction 2 Mathematics for Incompressible and Isothermal Oil-Lubricated Journal Bearings 2.1 Analysis of the Steady Reynolds Equation 2.2 FilmThickness Without Journal Perturbation 2.3 Dimensionless Finite Element Model 2.4 Calculation of Static Characteristics of Journal Bearing 3 Numerical Results Analysis 4 Conclusions References Characteristics and Control of Suspension System of Vehicle Subjected to Non-stationary Random Excitations Based on Varying Resonant Frequency Bands 1 Introduction 2 Non-stationary Random Process Modeling 2.1 Non-stationary Pseudo Excitation Method 2.2 Non-uniform Modulation Function 3 Non-stationary Responses of Suspension Systems 3.1 1/4 Vehicle Passive Suspension System Model 3.2 Calculation of Non-stationary Responses of Suspension Systems 4 Varying Resonant Frequency Bands 4.1 Time-Frequency Evolutionary Power Spectrum of the Response 4.2 Characteristics of the Varying Resonant Frequency Bands 5 H Control of Active Suspension System 5.1 Theoretical Basis 5.2 Simulation Example 6 Conclusions References Analysis of Magnetoelectric Conversion Performance of Low Frequency Halbach Array Energy Harvesting Structure 1 Introduction 2 Analysis on the Halbach Array Magnetic Field 3 Halbach Array Energy Harvesting Structure Design and Finite Element Modeling 4 Magnetoelectric Conversion Performance Simulation of Halbach Array Energy Harvesting Structure 4.1 The Influence of Rotation Speed on Output Voltage 4.2 The Influence of Air Gap on Output Voltage 4.3 The Influence of Coil Turns on Output Voltage 4.4 The Influence of Residual Magnetic Flux Density on Output Voltage 5 Magnetoelectric Conversion Experiment of Low Frequency Halbach Array Energy Harvesting Structure 6 Conclusion References Response Analysis of a Rotating Tapered Beam 1 Introduction 2 Modeling 2.1 Modeling of a Rotating Tapered Beam 2.2 The Galerkin Discretization for the Governing Equation 3 The 1:1 Primary Resonance 3.1 Effects of System Parameters on the First Two Natural Frequencies 3.2 The Vibration Response Analysis for the Coupled System 4 Conclusions References Consensus Control for Nonlinear Multiagent Systems with Sensor Faults 1 Introduction 2 Preliminaries 2.1 Graph Theory 2.2 The Radial Basis Function Neural Networks 2.3 Problem Statement 3 Control Design Scheme 3.1 Controller Design 4 Simulation Example 5 Conclusions References Multi-objective Trajectory Planning with State Constraints for 5-DOF Underactuated Tower Crane Systems 1 Introduction 2 Problem Formulation 2.1 Dynamics of 5-DOF Tower Cranes 2.2 Control Tasks 3 Multi-objective Trajectory Planning with State Constraints 3.1 Differential Flat Outputs Design 3.2 Trajectory Parametric Design 3.3 Multi-objective Optimization Process 4 Simulation Results and Analysis 4.1 Simulation 1: Comparative Results 4.2 Simulation 2: Results Under Different Working Requirements 5 Conclusion References Isogeometric Analysis for Two-Phase Liquid Sloshing 1 Introduction 2 Mathematical Formulation 2.1 Governing Equations 2.2 Characteristic-Based Split Algorithm 2.3 Determination of Material Parameters 3 Level Set Method for Tracking Sloshing Free Surface 3.1 Convection of Level Set 3.2 Reinitialization of Level Set 4 Numerical Examples 4.1 Comparison of Different Interface Band 4.2 Comparison with Flow3D 5 Conclusion References A Pendulum Type Particle Impact Damper 1 Introduction 2 Approximate Model 2.1 Vibrations with Initial Conditions 2.2 Damping Capacity 3 Simulations and Results 4 Conclusion References Event-Triggered Adaptive Fuzzy Control Design for Ship Autopilot System 1 Introduction 2 The Model of Ship Steering Autopilot 3 Event-Triggered Adaptive Fuzzy Steering Design Procedure 4 Simulation Studies 5 Conclusion References Admissibility Analysis and Control Synthesis for Polynomial Fuzzy Singular Systems via Line Integral Fuzzy Lyapunov Function 1 Introduction 2 Preliminaries 3 Main Results 4 Examples 5 Conclusion References Reinforcement Learning-Based Adaptive Output-Feedback Control for Discrete-Time Strict-Feedback Nonlinear Systems 1 Introduction 2 Problem Formulation and Preliminaries 2.1 High-Order Neural Network 2.2 State Observer Design 3 Optimal Controller Design 3.1 Backstepping Analysis 3.2 Critic-Action NN Design 4 Main Results 5 Simulation Studies 6 Conclusions References Forward and Inverse Kinematics Analysis of SMA Spring-Driven Flexible Manipulator 1 Introduction 2 Kinematics Analysis of Multi-joint Flexible Manipulator 2.1 Coordinate System 2.2 Kinematics of Straight Rods with Ball Hinge 2.3 Kinematics of Shape Memory Alloys (SMA) 2.4 Inverse Kinematics 2.5 Forward Kinematics 3 Summary and Future Work References H Memory Sample-Data Control for T-S Fuzzy Network Control System with Multiple Asynchronous Deception Attacks 1 First Section 1.1 Introduction 1.2 Preliminaries 1.3 Main Results 2 Second Section 2.1 Illustrative Example 3 Third Conclusion A Appendix References Invention and Application of Routine Treatment and New Intelligent Treatment Technology in Rehabilitation Training of Autistic Children 1 Introduction 2 DIR-Guided Training 2.1 Children’s Physical Development Differences Affect the Ability to Interact with People 2.2 Respect Children’s Development Laws and Learning Process 2.3 Emotions Are the Motivation for Children to Learn to Interact with Others 3 ‘Floor Time’ Promotes the Development of Functional Emotional Skills in Autistic Children 3.1 Respect Children’s Feelings and Needs and Use Children’s Feeling Preferences 3.2 Understand and Feel the Child’s Emotional State 3.3 Use Children’s Favourite Behaviours as the Basis for Interaction 3.4 Control Guardians’ Voice and Body Movements 4 Sandbox Games Therapy Promotes Self-expression of Autistic Children 4.1 An Attitude of Acceptance and Tolerance is Conducive to Establishing the Initial Therapeutic Relationship 4.2 Free and Tolerant Space is Conducive to the Expression of Children with Autism 4.3 Imitation Interaction Helps Develop the Social Skills of Children with Autism 5 Brain-Computer Interface Technology, a New Method in the Field of Artificial Intelligence 5.1 The History of BCI Technology 5.2 The Types of BCI Technology 5.3 The Research Based on the BCI Technology 5.4 The Influence on Autistic Children 5.5 The Use of BCI in This Research 6 Conclusion References Observer-Based Reliable H2 Control for Discrete-Time T-S Fuzzy Bilinear Systems with Infinite Distributed Delays 1 Introduction 2 Problem Formulation 3 Main Results 4 Numerical Example 5 Conclusion References Nonlinear Vibration Characteristics and Optimization Analysis of Diaphragm Pump Mass Valves 1 Introduction 2 Dynamics Model of Hydraulic Mass Valve 2.1 Differential Equation of the Mass Valve 2.2 Nonlinear Dynamics Model of Hydraulic End Mass Valve 3 Results and Discussions 3.1 Mass Valve Lift Curve 3.2 Performance Parameter Analysis 3.3 Valve Structure Parameters and Lift Relationship 4 Conclusions References Stochastic Dynamic Analysis of Large-Scale Nonlinear Structures 1 Introduction 2 Probability Density Integral Equation 2.1 The Principle of Probability Conservation 2.2 Probability Density Integral Equations of Static and Dynamic Systems 3 Generalization of PDIE and Equivalent Differential Equations 3.1 Generalization of Probability Density Integral Equation 3.2 Equivalent Differential Equations of PDIEs 4 Direct Probability Integral Method 5 Dynamic Reliability Analysis Based on DPIM 6 System Reliability Analysis Based on DPIM 7 Numerical Example of Stochastic Dynamic Analysis 8 Conclusions References Image-Based Visual Servoing Control of Quadrotor with MsQL Method 1 Introduction 2 Quadrotor Dynamics Modeling 2.1 Quadrotor Model Description 2.2 Quadrotor Dynamic Equations 3 Image Dynamics Modeling 3.1 Projection Mapping of Image Points 3.2 Image Moment Feature 3.3 Quadrotor IBVS Dynamics Model 4 Horizontal Motion Control for Quadrotors with MsQL 4.1 Horizontal Motion Model of Quadrotors 4.2 Optimal Control Policy 4.3 MsQL Algorithm 4.4 Adaptive Tuning for Step-Size Ni 5 Simulation 6 Conclusion References Anti-Swing Trajectory Planning for Quadrotor Transportation Systems with Double-Pendulum Swing Effects 1 Introduction 2 Problem Formulation 3 Trajectory Generation 4 Stability Analysis 5 Simulation Results 6 Conclusions References A Novel Bio-Inspired Polygon-Shaped Passive Vibration Isolator 1 Introduction 2 Configuration of the Pentagon-Shaped Structure 3 The Static Mechanical Analysis of the Structure 3.1 Restoring Force and Equivalent Stiffness 3.2 Analysis of Parameter Influences 4 Dynamical Modeling and Analysis 4.1 Equation of Motion 4.2 The Linear Natural Frequency 4.3 Vibration Isolation Performance 5 Conclusion References Similitude Laws for the Structural Response Under Impact Loading 1 Introduction 2 Theoretical Background 2.1 Analytical Impact Response 2.2 Similitude Laws 3 Analytical Results of Plates 3.1 Frequency Division 3.2 The Extrapolated Results of Impact Response 4 Experimental Validation 4.1 Description of Impact Tests 4.2 Experimental Results 4.3 Comparison to Numerical Simulation 5 Numerical Similitudes of Complex Structures 5.1 Descriptions of Complex Structures 5.2 Numerical Results 6 Conclusions References Global Sliding Model Synchronous Control Based on RBFN of Three Homodromy Exciters in Nonlinear Vibration System 1 Introduction 2 Electromechanical Coupling Dynamics Model 3 ACCC Strategy of Three Homodromy Exciters 4 Synchronous Controllr Design 4.1 Design of Tracking Error Control Algorithm for Three Homodromy Exciters 4.2 Stability and Effectiveness Analysis 1 4.3 Design of Synchronous Error Control Algorithm 4.4 Stability and Effectiveness Analysis 2 4.5 RBFN-GSMC and Stability Analysis 5 Results and Discussion 5.1 The Verification of Proposed RBFN-GSMC Algorithm Controller 5.2 Influence of Parameter Variation on RBFN-GSMC Algorithm Controller 6 Conclusion References Passive Suppression of Piecewise System with Nonlinear Energy Sink 1 Introduction 2 Mathematical Models 3 Model Solving 3.1 Fitting the Piecewise Restoring Force 3.2 HBM 4 Analysis of Vibration Reduction Effect of NES Under Different External Excitations 5 Parameter Analysis 5.1 Influence of Cubic Stiffness kN 5.2 Influence of Damping Coefficient cN 5.3 Influence of Cubic Nonlinearity and Damping Changing Simultaneously 5.4 Influence of NES Mass 6 Conclusions References Model Reference Event-Triggered Leaderless Consensus Control for a Class of Multi-agent Systems with Disturbance 1 Introduction 2 Preliminaries 2.1 Graph 2.2 NNs 2.3 Stability Theory 2.4 System Model 2.5 ETC Scheme 2.6 Distributed Adaptive Control Scheme 3 Feasibility Analysis 4 Simulation Results 5 Conclusion References Tracking Control of Hydraulic Circuit with Mulit-layer Winding Hoses Based on NB-ASMC with Input Time-Delay 1 Introduction 2 Principle and Formulation of Valve-Controlled Correction 2.1 Correction Principle 2.2 Formulation of Correction System 3 FTASMC Based on Input D