Control system design guide [[electronic resource] ] : using your computer to understand and diagnose feedback controllers / / George Ellis

• Record Nr.: UNINA9910461801703321
• Autore: Ellis George (George H.)
• Pubbl/distr/stampa: Amsterdam ; ; Boston, : Elsevier/BH, 2012
• ISBN: 1-283-73501-6; 0-12-385921-2
• Edizione: [4th ed.]
• Descrizione fisica: 1 online resource (521 p.)
• Disciplina: 629.8; 629.8/3; 629.83
• Soggetti: Feedback control systems - Design and construction; System design; Electronic books.
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Front Cover; Control System Design Guide: Using Your Computer to Understand andDiagnose Feedback Controllers; Copyright; Dedication; Contents; Praise for the new edition; Preface; What's New in this Edition?; Organization of the Book; Reader Feedback; Acknowledgments; Section I - Applied Principles of Controls; Chapter 1 - Introduction to Controls; 1.1Visual ModelQ Simulation Environment; 1.2The Control System; 1.3The Controls Engineer; Chapter 2 - The Frequency Domain; 2.1The Laplace Transform; 2.2Transfer Functions; 2.3Examples of Transfer Functions; 2.4Block Diagrams; 2.5Phase and Gain; 2.6Measuring Performance2.7 Questions; Chapter 3 - Tuning a Control System; 3.1 Closing Loops; 3.2 A Detailed Review of the Model; 3.3 The Open-Loop Method; 3.4 Margins of Stability; 3.5 A Zone-Based Tuning Procedure; 3.6 Variation in Plant Gain; 3.7 Multiple (Cascaded) Loops; 3.8 Power Converter Saturation and Synchronization; 3.9 Phase vs. Gain Plots; 3.10 Questions; Chapter 4 - Delay in Digital Controllers; 4.1How Sampling Works; 4.2Sources of Delay in Digital Systems; 4.3Experiment ; 4A: Understanding Delay in Digital Control; 4.4Selecting the Sample Time; 4.5 Questions; Chapter 5 - The z-Domain5.1Introduction to the z-Domain; 5.2z Phasors; 5.3Aliasing; 5.4Experiment 5A: Aliasing; 5.5From Transfer Function to Algorithm; 5.6Functions for Digital Systems; 5.7Reducing the Calculation Delay; 5.8Quantization; 5.9. Questions; Chapter 6 - Four Types of Controllers; 6.1Tuning in this Chapter; 6.2Using the Proportional Gain; 6.3Using the Integral Gain; 6.4Using the Differential Gain; 6.5PD Control; 6.6Choosing the Controller; 6.7Experiments 6A-6D; 6.8 Questions; Chapter 7 - Disturbance Response; 7.1Disturbances; 7.2Disturbance Response of a Velocity Controller; 7.3Disturbance Decoupling7.4 Questions; Chapter 8 - Feed-Forward; 8.1Plant-Based Feed-Forward; 8.2Feed-Forward and the Power Converter; 8.3Delaying the Command Signal; 8.4Variation in Plant and Power Converter Operation; 8.5Feed-Forward for the Double-Integrating Plant; 8.6 Questions; Chapter 9 - Filters in Control Systems; 9.1Filters in Control Systems; 9.2Filter Passband; 9.3Implementation of Filters; 9.4 Questions; Chapter 10 - Introduction to Observers in Control Systems; 10.1Overview of Observers; 10.2Experiments 10A-10C: Enhancing Stability with an Observer; 10.3Filter Form of the Luenberger Observer10.4Designing a Luenberger Observer; 10.5Introduction to Tuning an Observer Compensator; 10.6 Questions; Section II - Modeling; Chapter 11 - Introduction to Modeling; 11.1What is a Model?; 11.2Frequency-Domain Modeling; 11.3Time-Domain Modeling; 11.4Questions; Chapter 12 - Nonlinear Behavior and Time Variation; 12.1LTI Versus Non-LTI; 12.2Non-LTI Behavior; 12.3Dealing with Nonlinear Behavior; 12.4Ten Examples of Nonlinear Behavior; 12.5 Questions; Chapter 13 - Model Development and Verification; 13.1Seven-Step Process to Develop a Model; 13.2From Simulation to Deployment: RCP and HIL
• Sommario/riassunto: Control Systems Design Guide has helped thousands of engineers to improve machine performance. This fourth edition of the practical guide has been updated with cutting-edge control design scenarios, models and simulations enabling apps from battlebots to solar collectors. This useful reference enhances coverage of practical applications via the inclusion of new control system models, troubleshooting tips, and expanded coverage of complex systems requirements, such as increased speed, precision and remote capabilities, bridging the gap between the complex, math-heavy control theory ta

Traffic and granular flow 2019 / / Iker Zuriguel, Angel Garcimartín, Raúl Cruz Hidalgo, editors

• Record Nr.: UNISA996418446803316
• Pubbl/distr/stampa: Cham, Switzerland : , : Springer, , [2020]; ©2020
• ISBN: 3-030-55973-4
• Edizione: [1st ed. 2020.]
• Descrizione fisica: 1 online resource (XXVII, 611 p. 278 illus., 246 illus. in color.)
• Collana: Springer Proceedings in Physics ; ; Volume 252
• Disciplina: 388.41
• Soggetti: Granular flow; Pedestrian traffic flow; Traffic flow
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: Part 1: Pedestrian dynamics -- Chapter 1. Influence of Corridor Width and Motivation on Pedestrians in Front of Bottlenecks -- Chapter 2. The Measurement of Stress at Open-Air Events: Monitoring Emotion and Motion Utilizing Wearable Sensor Technology -- Chapter 3. Smoothing trajectories of people’s heads -- Chapter 4. Influence of Small-Scale Obstacles on Passenger Flows in Railway Stations -- Chapter 5. Analysis of Pedestrian Motion Using Voronoi Diagrams in Complex Geometries -- Chapter 6. The trouble with 2nd order models or how to generate stop-and-go traffic in a 1st order model -- Chapter 7. The impact of walking speed heterogeneity and flow ratio on the pedestrian fundamental diagram -- Chapter 8. Experimental investigation on information provision methods and guidance strategies for crowd control -- Chapter 9. The impact of guidance information on exit choice behavior during an evacuation - a VR study -- Chapter 10. Experimental study on crowds with different velocity composition -- Chapter 11. The effect of an obstacle before a bottleneck: inert particles, sheep, and persons -- Chapter 12. Towards Inferring Input Parameters from Measurements: Bayesian Inversion for a Bottleneck Scenario -- Chapter 13. Spatially dependent friction – a way of adjusting bottleneck flow in cellular models -- Chapter 14. Experimental study on the congestion-sharing effect of obstacle on ; pedestrian crowd egress -- Chapter 15. Experimental setups to observe evasion maneuvers in low and high densities -- Chapter 16. How to change the value of Social Force Model’s relaxation time parameter with desired speed such that bottleneck flow remains unchanged -- Chapter 17. An analytical solution of the Social Force Model for uni-directional flow -- Chapter 18. A cognitive, decision-based model for pedestrian dynamics -- Chapter 19. Exploring Koopman Operator Based Surrogate Models - Accelerating the Analysis of Critical Pedestrian Densities -- Chapter 20. Evacuation Characteristics of Students Passing through Bottlenecks. Chapter 21. An efficient crowd density estimation algorithm through network compression -- Chapter 22. Modelling Pedestrian Social Group Passing Strategy with Expression-Matrix and Social Force -- Chapter 23. Pedestrian fundamental diagram in between normal walk and crawling -- Chapter 24. Deep Fundamental Diagram Network for Real-time Pedestrian Dynamics Analysis -- Chapter 25. Data-driven simulation for pedestrian avoiding a fixed obstacle -- Chapter 26. Entropy, Field Theory and Pedestrian Dynamics: Prediction and Forensics -- Chapter 27. The impact of social groups on collective decision-making in evacuations: a simulation study -- Chapter 28. Set-up of a method for people-counting using images from a UAV -- Chapter 29. Modeling of position finding in waiting processes on platforms -- Chapter 30. Exploring the effect of crowd management measures on passengers’ behaviour at metro stations -- Chapter 31. Rotation behaviour of pedestrians in bidirectional and crossing flows -- Chapter 32. Experimental study on one-dimensional movement with different motion postures -- Chapter 33. A decision model for pre-evacuation time prediction based on fuzzy logic theory -- Chapter 34. Clogging in velocity-based models for pedestrian dynamics -- Chapter 35. Exit-choice behavior in evacuation through an L-shaped corridor -- Chapter 36. Bidirectional Flow on Stairs at Different Flow Ratios -- Chapter 37. Gender profiling of pedestrian dyads -- Chapter 38. The effect of social groups on the dynamics of bi-directional pedestrian flow: a numerical study -- Chapter 39. Experimental study on pedestrian flow under different age groups and movement motivations -- Chapter 40. Experimental Analysis of the Restriction Mechanisms of Queuing on Pedestrian Flow at Bottleneck -- Chapter 41. Vadere - A simulation framework to compare locomotion models -- Part 2: Granular and active matter -- Chapter 42. First-order contributions to the partial temperatures in dilute binary granular suspensions -- Chapter 43. Acoustic resonances in a confined set of disks -- Chapter 44. Morphological response of clogging arches to gentle vibration. .
• Sommario/riassunto: This book gathers contributions on a variety of flowing collective systems. While primarily focusing on pedestrian dynamics, they also reflect the latest developments in areas such as vehicular traffic and granular flows and address related emerging topics such as self-propelled particles, data transport, swarm behavior, intercellular transport, and collective dynamics of biological systems. Combining fundamental research and practical applications in the various fields discussed, the book offers a valuable asset for researchers and practitioners alike. .