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Vehicle Collision Dynamics

Vehicle Collision Dynamics
Analysis and Reconstruction

by Dario Vangi

  • Publisher : Butterworth-Heinemann
  • Release : 2020-01-31
  • Pages : 214
  • ISBN : 0128127511
  • Language : En, Es, Fr & De
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Vehicle Collision Dynamics provides a unified framework and timely collection of up-to-date results on front crash, side crash and car to car crashes. The book is ideal as a reference, with an approach that's simple, clear, and easy to comprehend. As the mathematical and software-based modelling and analysis of vehicle crash scenarios have not been systematically investigated, this is an ideal source for further study. Numerous academic and industry studies have analyzed vehicle safety during physical crash scenarios, thus material responses during crashes serve as one of the most important performance indices for mechanical design problems. In addition to mathematical methodologies, this book provides thorough coverage of computer simulations, software-based modeling, and an analysis of methods capable of providing more flexibility. Unifies existing and emerging concepts concerning vehicle crash dynamics Provides a series of latest results in mathematical-based modeling from front and oblique perspectives Contains almost everything needed to capture the essence of model development and analysis for vehicle crash Includes both numerical and simulation results given in each chapter Presents a comprehensive, up-to-date reference that encourages further study

Simulation and Animation Tools for Analysis of Vehicle Collision

Simulation and Animation Tools for Analysis of Vehicle Collision
SMAC (Simulation Model of Automobile Collisions) and Carmma (simulation Animations)

by Bruce Hongola,Ching-Yao Chan

  • Publisher : Unknown Publisher
  • Release : 1999
  • Pages : 16
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Studies of Vehicle Collisions

Studies of Vehicle Collisions
A Documentation of the Simulation Codes : SMAC (Simulation Model of Automobile Collisions)

by Ching-Yao Chan

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 10
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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This document describes part of the work conducted under MOU252 and MOU324, related to the studies of vehicle collisions in vehicle-following operations. This working paper is a detailed documentation of a computer program that is the core element of the simulation tools for vehicle collision dynamics. The program, SMAC (Simulation Model of Automobile Collisions), and its PC-platform version EDSMAC have been used extensively in recent work at PATH to investigate the consequences of vehicle collisions and the effects of vehicle-following parameters on collisions. A copy of the source codes of SMAC was obtained from the University of Michigan Transportation Research Institute (UMTRI). Revisions to the program were made to insert the option of exercising feedback control in collision situations. After these revisions, control algorithms can now be tested in crash scenarios to examine the feasibility and effectiveness of vehicle control in emergency conditions. The structure of the program was outlined in this report with descriptions of the major subroutines. The added options for implementing user-specified steering inputs and feedback controllers were explained in details. An example input file for running the computer program was also provided to illustrate the formats and contents of input parameters. This working report provides a concise and essential documentation for the computer program. KEY WORDS Vehicle Collisions Simulation of Vehicle Crashes Vehicle Control in Collisions Advanced Vehicle Control Systems

Investigation of the Effect of Bull-bars on Vehicle-pedestrian Collision Dynamics

Investigation of the Effect of Bull-bars on Vehicle-pedestrian Collision Dynamics
A Book

by H. K. Chiam,J. A. Tomas

  • Publisher : Unknown Publisher
  • Release : 1980
  • Pages : 90
  • ISBN : 9780642511300
  • Language : En, Es, Fr & De
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Studies of Vehicle Collisions -- a Documentation of the Simulation Codes: SMAC (Simulation Model of Automobile Collisions). Update 1

Studies of Vehicle Collisions -- a Documentation of the Simulation Codes: SMAC (Simulation Model of Automobile Collisions). Update 1
A Book

by Ching-Yao Chan

  • Publisher : Unknown Publisher
  • Release : 1999
  • Pages : 13
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Motor Vehicle Collision Injuries

Motor Vehicle Collision Injuries
Mechanisms, Diagnosis, and Management

by Larry S. Nordhoff

  • Publisher : Aspen Pub
  • Release : 1996
  • Pages : 373
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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This book presents the concepts of chiropractic diagnostic workup, injury mechanisms, patient management, and prognosis of cervical and soft tissue injuries caused by automobile crashes. With an entire section devoted to automobile collision data, crash dynamics, and human tolerance and injury factors, it's extensively referenced from the clinical and automotive crash literature.

Path Planning and Tracking for Vehicle Collision Avoidance in Lateral and Longitudinal Motion Directions

Path Planning and Tracking for Vehicle Collision Avoidance in Lateral and Longitudinal Motion Directions
A Book

by Jie Ji,Hong Wang,Yue Ren

  • Publisher : Morgan & Claypool Publishers
  • Release : 2020-10-09
  • Pages : 152
  • ISBN : 1681739402
  • Language : En, Es, Fr & De
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In recent years, the control of Connected and Automated Vehicles (CAVs) has attracted strong attention for various automotive applications. One of the important features demanded of CAVs is collision avoidance, whether it is a stationary or a moving obstacle. Due to complex traffic conditions and various vehicle dynamics, the collision avoidance system should ensure that the vehicle can avoid collision with other vehicles or obstacles in longitudinal and lateral directions simultaneously. The longitudinal collision avoidance controller can avoid or mitigate vehicle collision accidents effectively via Forward Collision Warning (FCW), Brake Assist System (BAS), and Autonomous Emergency Braking (AEB), which has been commercially applied in many new vehicles launched by automobile enterprises. But in lateral motion direction, it is necessary to determine a flexible collision avoidance path in real time in case of detecting any obstacle. Then, a path-tracking algorithm is designed to assure that the vehicle will follow the predetermined path precisely, while guaranteeing certain comfort and vehicle stability over a wide range of velocities. In recent years, the rapid development of sensor, control, and communication technology has brought both possibilities and challenges to the improvement of vehicle collision avoidance capability, so collision avoidance system still needs to be further studied based on the emerging technologies. In this book, we provide a comprehensive overview of the current collision avoidance strategies for traditional vehicles and CAVs. First, the book introduces some emergency path planning methods that can be applied in global route design and local path generation situations which are the most common scenarios in driving. A comparison is made in the path-planning problem in both timing and performance between the conventional algorithms and emergency methods. In addition, this book introduces and designs an up-to-date path-planning method based on artificial potential field methods for collision avoidance, and verifies the effectiveness of this method in complex road environment. Next, in order to accurately track the predetermined path for collision avoidance, traditional control methods, humanlike control strategies, and intelligent approaches are discussed to solve the path-tracking problem and ensure the vehicle successfully avoids the collisions. In addition, this book designs and applies robust control to solve the path-tracking problem and verify its tracking effect in different scenarios. Finally, this book introduces the basic principles and test methods of AEB system for collision avoidance of a single vehicle. Meanwhile, by taking advantage of data sharing between vehicles based on V2X (vehicle-to-vehicle or vehicle-to-infrastructure) communication, pile-up accidents in longitudinal direction are effectively avoided through cooperative motion control of multiple vehicles.

Motor Vehicle Collision Injuries

Motor Vehicle Collision Injuries
Biomechanics, Diagnosis, and Management

by Larry S. Nordhoff

  • Publisher : Jones & Bartlett Learning
  • Release : 2005
  • Pages : 638
  • ISBN : 9780763733353
  • Language : En, Es, Fr & De
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A complete revision of the first edition, this book presents the most current concepts of chiropractic diagnostic workup, injury mechanisms, patient management, and prognosis of cervical and soft tissue injuries caused by automobile crashes. It is a comprehensive overview of all relevant issues facing clinicians in private practice. This edition includes five new chapters and includes real world examples that can be used in everyday practice. With an entire section devoted to automobile collision data, crash dynamics, and human tolerance and injury factors, it's extensively referenced from the clinical and automotive crash literature.The second edition contains 5 new chapters that cover:- Emerging concepts in treating chronic whiplash pain has been added to explore some of the newer forms of treating the chronic patient.- Crash speeds and injury risk. This chapter is unique in that it explores various international publications that evaluate the risk. Attempts to dispel myths about crash speeds and gives a forensic overview of the application of these studies.- Have split the original chapter on injury mechanisms into 4 chapters in the second edition. Chapter 15 focuses specifically into the arena of general applications of biomechanics relating to automobile crashes. Chapters 16-18 provide individual chapters on frontal, side, and rear crash biomechanics. These chapters explore the individual complexities of the varying types of crashes.- Human factors that influence injury and recovery has been added as a separate chapter to provide more detailed information to the clinician.In addition, the authors have focused on adding more information about the sensitivity and specificity of various orthopedic and neurological tests, and have further explored the types of conditions that chiropractors treat.To view the list of contributors to this edition, click on the additional information button below.Christopher J. Centeno, MDCo-Editor-The Journal of Whiplash and Related DisordersBoard Certified Physical Medicine and RehabilitationBoard Certified Anesthesia Pain ManagementMedical Director-The Spine Injury FoundationCharles Davis, DC, DAAPM, CCSTMichael D. Freeman, PhD, DC, MPHForensic Trauma EpidemiologistDepartment of Public Health & Preventive MedicineOregon Health & Science University School of MedicineJay A. Kaiser, MDMedical DirectorNational Orthopedic Imaging AssociatesGerald P. Keane, MDPhysiatry Medical Group/SOARVoluntary Clinical Assistant Professor Stanford University School of MedicineDaniel J. Murphy, DCFaculty Life Chiropractic College WestDiplomate American Board of Chiropractic OrthopedistsRichard Nolan, MDDamon C. Sacco, MDMedical DirectorNati

The Development of Collision Dynamics Models to Estimate the Results of Full-scale Rail Vehicle Impact Tests

The Development of Collision Dynamics Models to Estimate the Results of Full-scale Rail Vehicle Impact Tests
A Book

by Kristine J. Severson

  • Publisher : Unknown Publisher
  • Release : 2000
  • Pages : 214
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Quadrotor Collision Dynamics and Fuzzy Logic Characterization

Quadrotor Collision Dynamics and Fuzzy Logic Characterization
A Book

by Fiona Chui

  • Publisher : Unknown Publisher
  • Release : 2017
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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"As quadrotor unmanned aerial vehicles (UAVs) become more commonplace, the inherent safety risks that these vehicles pose must be addressed. Focus is placed on the risk of losing flight control after a quadrotor UAV collides with an obstacle, which is a danger for anyone in proximity of the vehicle. A collision dynamics model of a quadrotor UAV with bumpers (i.e., propeller protection) is developed for the purpose of developing a collision recovery strategy to return the quadrotor to a hovering configuration after colliding with a wall, using only on-board sensors. The model includes forces and moments from the standard quadrotor rigid-body dynamics formulation, combined with contact forces applied at contact points on the bumpers. The model is simulated under an array of different incoming impact velocities and attitudes for model verification and studying the quadrotor post-collision response. Validation is provided by comparing the simulated post-collision response to experimental results with the same pre-impact conditions, to show the model is a suitable tool for collision recovery development. An overall recovery strategy is presented: the Collision Recovery Pipeline (CRP), comprising of three phases. The first two phases, Collision Identification and Collision Characterization, are formulated. The first phase detects the collision and estimates the contact surface normal direction with accelerometer measurements. The second phase uses a fuzzy logic process (FLP) to identify the difficulty of recovery. Monte Carlo simulation and experimental data demonstrate that the two phases provide useful information to the final CRP phase. Simulations and experiments of the complete recovery solution demonstrate successful quadrotor recovery for initial collision velocities up to 3 m/s, and the effect of the first two phases on the recovery control performance." --

Vehicle Dynamics Using Computer Simulations and Event Data Recorders

Vehicle Dynamics Using Computer Simulations and Event Data Recorders
A Book

by Mariana Alvarado Nava

  • Publisher : Unknown Publisher
  • Release : 2016
  • Pages : 190
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The police crash investigation department requires an engineering study of a vehicle crash before presenting a case to the judicial system. Vehicle crash reconstruction simulations establish new scientific basis for the judiciary system. Computer models are used to reconstruct the vehicle performance, since the dynamic performance of a vehicle collision cannot be repeated in real time. Vehicle dynamics is the engineering study of a vehicle based on mechanics and physics. This thesis uses modern techniques in combination with the information of Event Data Recorders (EDR) to help the judiciary system identify the safety parameters and condition of vehicles. The research analysis mainly focuses on the performance of police vehicles. The EDR is a device installed in the vehicle to record how the driver responds to a crash event. Since 2004 the event data recorders are mandatory in every vehicle. Also, the EDR is able to analyze the change in velocity of the vehicle at the time of the impact. The analysis of the change in velocity allows a base structure for computer simulation. A 3-D computer solid model of a 2004 Ford Crown Victoria is developed using Solidwoks. Also, dynamic computer simulations are developed using Adams View. The solid models consist of a tire assembly, a suspension assembly and a vehicle structure. These are assembled to form a complete model of the vehicle. The main objective is to analyze the vehicle's performance during tactile driving maneuverers. The second objective is to provide new alternative methods to demonstrate a crash reconstruction to the judicial system. This method will provide a simpler, faster, and more accurate analysis of a vehicle dynamics. Additionally, the outcome of these simulations will provide a theoretical basis for future vehicle design.

Modeling Nonlinear Problems in the Mechanics of Strings and Rods

Modeling Nonlinear Problems in the Mechanics of Strings and Rods
The Role of the Balance Laws

by Oliver M. O'Reilly

  • Publisher : Springer
  • Release : 2017-03-10
  • Pages : 425
  • ISBN : 331950598X
  • Language : En, Es, Fr & De
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This book presents theories of deformable elastic strings and rods and their application to broad classes of problems. Readers will gain insights into the formulation and analysis of models for mechanical and biological systems. Emphasis is placed on how the balance laws interplay with constitutive relations to form a set of governing equations. For certain classes of problems, it is shown how a balance of material momentum can play a key role in forming the equations of motion. The first half of the book is devoted to the purely mechanical theory of a string and its applications. The second half of the book is devoted to rod theories, including Euler’s theory of the elastica, Kirchhoff ’s theory of an elastic rod, and a range of Cosserat rod theories. A variety of classic and recent applications of these rod theories are examined. Two supplemental chapters, the first on continuum mechanics of three-dimensional continua and the second on methods from variational calculus, are included to provide relevant background for students. This book is suited for graduate-level courses on the dynamics of nonlinearly elastic rods and strings.

Road Vehicle Dynamics: Fundamentals Of Modeling And Simulation

Road Vehicle Dynamics: Fundamentals Of Modeling And Simulation
A Book

by Genta Alessandro,Genta Giancarlo

  • Publisher : World Scientific
  • Release : 2016-12-28
  • Pages : 996
  • ISBN : 9814713457
  • Language : En, Es, Fr & De
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Road Vehicle Dynamics supplies students and technicians working in industry with both the theoretical background of mechanical and automotive engineering, and the know-how needed to perform numerical simulations. Bringing together the foundations of the discipline and its recent developments in a single text, the book is structured in three parts: it begins with a historical overview of road vehicles; then deals with the forces exchanged between the vehicle and the road, and the vehicle and the air; and finally, deals with the dynamic behavior of the vehicle in normal driving conditions with some extensions towards conditions encountered in high-speed racing. Coverage of contemporary automatic controls is included in this edition.

Handbook of Railway Vehicle Dynamics, Second Edition

Handbook of Railway Vehicle Dynamics, Second Edition
A Book

by Simon Iwnicki,Maksym Spiryagin,Colin Cole,Tim McSweeney

  • Publisher : CRC Press
  • Release : 2019-11-14
  • Pages : 893
  • ISBN : 0429890621
  • Language : En, Es, Fr & De
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Handbook of Railway Vehicle Dynamics, Second Edition, provides expanded, fully updated coverage of railway vehicle dynamics. With chapters by international experts, this work surveys the main areas of rolling stock and locomotive dynamics. Through mathematical analysis and numerous practical examples, it builds a deep understanding of the wheel-rail interface, suspension and suspension component design, simulation and testing of electrical and mechanical systems, and interaction with the surrounding infrastructure, and noise and vibration. Topics added in the Second Edition include magnetic levitation, rail vehicle aerodynamics, and advances in traction and braking for full trains and individual vehicles.

Passenger Car Safety Dynamics

Passenger Car Safety Dynamics
An Engineering Pilot Study to Determine Comparative Human Injury Potentials in Vehicle Accidents

by Andrew J. White

  • Publisher : Unknown Publisher
  • Release : 1965
  • Pages : 481
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Microscopic Modeling of Traffic Flow

Microscopic Modeling of Traffic Flow
Investigation of Collision Free Vehicle Dynamics

by Stefan Krauss

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 115
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Green Connected Automated Transportation and Safety

Green Connected Automated Transportation and Safety
Proceedings of the 11th International Conference on Green Intelligent Transportation Systems and Safety

by Wuhong Wang,Yanyan Chen,Zhengbing He,Xiaobei Jiang

  • Publisher : Springer Nature
  • Release : 2021-12-13
  • Pages : 857
  • ISBN : 9811654298
  • Language : En, Es, Fr & De
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These proceedings gather selected papers from the 11th International Conference on Green Intelligent Transportation Systems and Safety, held in Beijing, China on October 17-19, 2020. The book features cutting-edge studies on Green Intelligent Mobility Systems, the guiding motto being to achieve “green, intelligent, and safe transportation systems”. The contributions presented here can help promote the development of green mobility and intelligent transportation technologies to improve interconnectivity, resource sharing, flexibility and efficiency. Given its scope, the book will benefit researchers and engineers in the fields of Transportation Technology and Traffic Engineering, Automotive and Mechanical Engineering, Industrial and System Engineering, and Electrical Engineering alike. The readers will be able to find out the Advances in Green Intelligent Transportation System and Safety.

Highway Safety Literature

Highway Safety Literature
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1980
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Automated Highway Systems

Automated Highway Systems
A Book

by Petros Ioannou

  • Publisher : Springer Science & Business Media
  • Release : 2013-04-17
  • Pages : 351
  • ISBN : 1475745737
  • Language : En, Es, Fr & De
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Experts address some of the main issues and uncertainties associated with the design and deployment of Automated Highway Systems (AHS). They discuss new AHS concepts, technology, and benefits, as well as institutional, environmental, and social issues - concerns that will affect dramatically the operation of the current highway system from both the vehicle and infrastructure points of view.

The Dynamics of Vehicles on Roads and Tracks

The Dynamics of Vehicles on Roads and Tracks
Proceedings of the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD 2015), Graz, Austria, 17-21 August 2015

by Martin Rosenberger,Manfred Plöchl,Klaus Six,Johannes Edelmann

  • Publisher : CRC Press
  • Release : 2016-03-30
  • Pages : 1626
  • ISBN : 1498777023
  • Language : En, Es, Fr & De
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The IAVSD Symposium is the leading international conference in the field of ground vehicle dynamics, bringing together scientists and engineers from academia and industry. The biennial IAVSD symposia have been held in internationally renowned locations. In 2015 the 24th Symposium of the International Association for Vehicle System Dynamics (IAVSD) was held in Graz, Austria, from 17th to 21st of August 2015. The symposium was hosted by VIRTUAL VEHICLE Research Center, in cooperation with the Graz and Vienna Universities of Technology, and the industrial partners AVL, Magna Steyr, and Siemens. 170 papers (oral and poster presentations) were presented at the symposium and the papers are now published in these proceedings. The papers review the latest research developments and practical applications in highly relevant areas of vehicle dynamics on roads and tracks, and may serve as a reference for researchers and engineers active in the field of vehicle system dynamics.