Vehicle Crash Mechanics

Zitat

Huang, M.: Vehicle Crash Mechanics. June 19, 2002, CRC Press Reference - 504 Pages - 589 B/W Illustrations ISBN 9780849301049

Inhaltsverzeichnis

CRASH PULSE AND KINEMATICS

Introduction

Vehicle Impact Modes and Crash Data Recording

Digital Filtering Practice per SAE J211 and ISO 6487

Basic Kinematic Relationships

Impact and Excitation: Vehicle and Sled Test Kinematics

Vehicle and Occupant Kinematics in Fixed Object Impact

Kinematic Variables

Case Study: Single Vehicle-Tree Impact Accident

Restraint Coupling

Occupant Ridedown Analysis and Energy Management

References

CRASH PULSE CHARACTERIZATION

Introduction

Moment-Area Method

Pulse Approximations with Non-Zero Initial Deceleration

Pulse Approximations with Zero Initial Deceleration

Fourier Analysis of Crash Pulse

References

CRASH PULSE PREDICTION--THE CONVOLUTION METHOD

Introduction

Transfer Function via Convolution Integral

Transfer Function and a Spring-Damper Model

Belted and Unbelted Occupant Performance with Air Bag

Body Mount and Torso Restraint Transfer Functions

Effect of Sled and Barrier Pulses on Occupant Response

Other Applications

Response Inverse Filtering

References

BASICS OF IMPACT AND EXCITATION MODELING

Introduction

Impact and Excitation--Rigid Barrier and Hyge Sled Tests

Ridedown Existence Criteria and Efficiency

Basics of Spring and Damper Dynamic Modeling

Two-Mass and Effective Mass Systems

Vehicle-to-Barrier Impact: Spring-Mass Model

Spring-Mass Occupant Model Subjected to Excitation

Vehicle-to-Vehicle Impact: Spring-Mass Model

A Maxwell Model

Impact on Kelvin Model--Vehicle or Component

Damping Factor and Natural Frequency from Tests

Excitation on the Kelvin Model--Occupant and Restraint

References

RESPONSE PREDICTION BY NUMERICAL METHODS

Introduction

Hybrid Model--A Standard Solid Model

Two Mass-Spring-Damper Model

Natural Frequencies in Two-Mass System

Numerical Searching Techniques

Loading and Unloading Simulation

A Lumped-Parameter Model--CRUSH II

Side-Impact and Frontal-Offset Models

References

IMPULSE, MOMENTUM, AND ENERGY

Introduction

Background

Center of Gravity and Motion Theorem

Impulse and Circle of Constant Acceleration

Principle of Work and Energy

Vehicle Inertia Properties and Critical Sliding Velocity

Rollover Crashes

Eccentric Loading on Vehicle Rollover

References

CRASH SEVERITY AND RECONSTRUCTION

Introduction

Occupant Motion Under Impact and Excitation

Preloading on an Occupant

Central Collisions

Non-Central Collisions

Use of DV and BEV of Vehicles in Crash Severity Assessment

Vehicle Acceleration and Crash Severity

Velocity and Energy Distributions in Two-Vehicle Impact

Computation of Barrier Equivalent Velocity

Intermediate Mass Effect

Modeling the Vehicle-to-Vehicle Compatibility Test

Accident Reconstruction Methodology

References

Hinweis

http://roadsafellc.com/NCHRP22-24/Literature/Papers/Vehicle_Crash_Mechanics.pdf