The Dynamics of Vehicles on Roads and on Tracks

Proceedings of the 13th IAVSD Symposium

Z.Y. Shen

• Publisher: CRC Press
• Year: 2021
• eBook ISBN: 9781000446449
• Edition: 1
• Topic: Technology & Engineering
• Subtopic: Civil Engineering
• Index: Technology & Engineering

This book develops a continuous look-ahead preview control scheme and applies the scheme to the well known quarter car model. It particularly focuses on the active and semi-active control of the vehicle systems.

Different Lateral Dynamic Operating Conditions of a Railway Vehicle Fitted with Independently Rotating Wheels.

R. KIRAT and P. COURTOIS

GEC ALSTHOM – ACR, 2, rue Baptiste Marcet, B.P.42, 71202 Le Creusot Cedex, France

SUMMARY

This paper reports theoretical investigations done by GEC ALSTHOM related to the topic of railway vehicles with independently rotating wheels (IRW). As a first step, 2 classes of model are developed successively for the conventional wheelset and for the IRW fitted wheelset. The first class of model describes 3 dimensional dynamics of the wheelset and takes into account the 2 specific non–linearities of railway system: contact geometry and creep forces dependency on creepages. Permanent contact condition of the wheelset on the track is expressed by zero value of the 2 normal relatives velocities at the contact points, which leads to Lagrange equations with multipliers. Numerical solution by time integration of the differential algebraic set of equations involves a specific processing. A second class of models results from linearizing contact geometry and contact forces relationships assuming small deviations around an equilibrium point. These models are restricted to lateral dynamics. With help of these last class of models, specific behaviour of IRW wheelset is focused on. Analyze of the influence of certain design parameters, notably an interwheel viscous damping effect, is conducted. Investigations are reported about the influence of IRW on the lateral dynamics of a full coach model. Confrontation with behaviour exhibited by a full non–linear coach model is then performed, as well as qualitative comparison with track tests results at high speed from French National Railways (SNCF).

1. INTRODUCTION

Contact geo...

Table of contents

• Cover
• Title Page
• Copyright Page
• Table of Contents
• Introduction
• Active Suspension With Preview Control
• Quasi Static Derailment of a Railway Vehicle, Comparison Between Experimental and Simulation Results
• Use of a Model Reduction Procedure to Speed Up Time Domain Simulations of Rail Vehicles
• Kinematics and Dynamics of Ski-Tracked Vehicles
• Synthesis of Control to Improve Lateral Dynamics of Railway Vehicles
• Vehicle Handling Case Studies: An on/off road vehicle and a 16t truck
• Interaction Between Railroad Superstructure and Railway Vehicles
• Traction Control for Front-Wheel-Drive Vehicles
• Modelling and Simulation of the Hunting of a Three-Piece Railway Truck on NRC Curved Track Simulator
• Dynamical Measurements in Vehicles by Transputer Technology
• Predictive Analyses of the Performance of a Headway Control System for Heavy Commercial Vehicles
• Wheel/Rail Contact Forces for Flexible versus Solid Wheels due to Tread Irregularities
• Second Generation Approaches to Active and Semi-Active Suspension Control System Design
• Drive-Vehicle-Environment Closed-Loop Simulation of Handling and Stability Using Fuzzy Control Theory
• The Selection of Optimum Vehicle Parameters Based on the Pilot-Vehicle Directional Stability
• Stability Criteria and Objective Evaluation of a Drive-Vehicle System for Driving in Lane Change and against Crosswind
• Dynamic Coupling in Vehicles Under Automatic Control
• A Discrete-continuous Track-model for Wheelset Rolling over Short Wavelength Sinusoidal Rail Irregularities
• The Numerical Bifurcation Method of Nonlinear Lateral Stability Analysis of a Locomotive
• Different Lateral Dynamic Operating Conditions of a Railway Vehicle Fitted with Independently Rotating Wheels
• On a Certain Method of Examining Stability of Mathematical Models of Railway Vehicles with Disturbances Occurring in Real Objects
• Progress in Integrated System Analysis and Design Software for Controlled Vehicles
• Active and Semi-Active System for Optimisation of Bogie Vehicle Primary and Secondary Suspensions in the Lateral Plane
• An Investigation of Active Roll Control of Heavy Road Vehicles
• A Comparison of Driver Steering Activity During Motion on an Even and Uneven Road Surface
• An Integrated Dynamic Simulation of Metro Vehicles in a Real Operating Environment
• Full Scale Roller Rig Simulation for Railway Vehicles
• Integrated Control of Lateral Vehicle Dynamics
• Running through a Switch – Simulation and Test
• Development and Experimental Validation of Advanced Dynamic Vehicle Simulation (ADVS)
• Hardware Influences on Control Algorithms for Advanced Suspensions
• Curving and Stability Analysis of Self-steering Bogies having a Variable Yaw Constraint
• On the Ride Comfort Benefits available from Road Preview with Slow-active Car Suspensions
• Improvement on Limit Performance of Vehicle Motion by Chassis Control
• Rail Inclination, Wheelset Rolling Line Offset and Side-Cutting
• Dynamics of Unsymmetric Suspension Trucks With Semi-active Control
• An Alternate Control Algorithm for the Four-Wheel-Steering Vehicles
• Parameter Study of Hunting and Chaos in Railway Vehicle Dynamics
• Semi-Active Control of Vibration and Attitude of Vehicles
• Dynamic Stability of Articulated and Steered Railway Vehicles Guided by Lateral Displacement Feedback
• A Study of the High Speed Passenger Bogie Utilizing the Full Scale Roller Testing Rig
• Handling Analysis of Automobile Travelling in Jack-Up Attitude
• Tyre Models for the Study of In-plane Dynamics
• The Dynamic Simulation of Vehicle-Bridge Interactions Using Bond Graph Technique
• A Detailed Model for Investigating Vertical Interaction Between Railway Vehicle and Track
• List of Participants