There is increasing deployment of barriers on sloped surfaces for various reasons. The crashworthiness of barriers is, however, only ascertained for installation on level surfaces. There has been analysis of the vehicle dynamics effects of vehicle-to-barrier interfaces on sloped surfaces, but there have been no reported analyses of the vehicle dynamics of trucks traversing sloped surfaces. In t...

Set-membership identification of a Linear Parameter Varying (LPV) model describing the vehicle lateral dynamics is addressed in the paper. The model structure, chosen as much as possible on the ground of physical insights into the vehicle lateral behavior, consists of two single-input single-output LPV models relating the steering angle to the yaw rate and to the sideslip angle. A set of experi...

The Vehicle Dynamics Library is a commercial Modelica library for vehicle dynamics applications. This paper highlights recent development with focus on extended usability. Key changes are improved interoperability with other tools, improved simulation performance, extended vehicle system simulation, and expanded analysis. Examples are given from efficient simulation of drivelines, development o...

Progress in understanding the driver/vehicle interface requires an improved model of driver skill in the steering control task. A possible explanation for driver steering skill involves driver usage of multiple internal models of the vehicle dynamics, where each internal model represents the actual vehicle dynamics within a limited range of the performance envelope of the vehicle. This paper pr...

OVERVIEW: Recently, there has been an increase in the practical application of ACC (adaptive cruise control) systems, which measure the following distance to the preceding vehicle by radar and automatically maintain an appropriate following distance, and lane keeping systems, which recognize lanes using vision sensors and keep the vehicle from deviating from the lane. Current systems are based ...

The powering requirement of a land yacht is one of the most important aspects of its design. In this respect the wind tunnel testing is an effective design tool. In fact, changing the parameters of the vehicle and testing the changes in the wind tunnel will give us a better understanding of the most efficient vehicle, and yet it is time consuming, expensive, and has inherent scaling errors. Ano...

Nonlinear vibration of parabolic springs employed in suspension system of a freight car has been studied in this paper. First, dynamical behavior of the springs is investigated by using finite element method and the obtained results are then used in vibration analysis of a railway freight car. For this purpose, dynamics of a parabolic spring subjected to a cyclic excitation has been studied ...

This paper proposes a 2D dynamical model for evaluating parameters affecting whiplash. In fact a four segment dynamical model is developed in the sagittal plane for the analysis. The model response is validated using the existing experimental data and is shown to simulate the "S-Shape" and "initial upward ramping" kinematics of the cervical spine and the resulting dynamics observed in human and...