-As IEC 61850 becomes more widely accepted in the electrical engineering community, it is important that the testing tools keep pace with this development. IEC 61850 presents new challenges to real time simulation and closed-loop testing of protective relays. Electrical interfaces used for binary signaling and voltage/current amplifiers must be replaced by an Ethernet connection and an IEC 6185...

We present a new method for real-time physics-based simulation supporting many different types of hyperelastic materials. Previous methods such as Position Based or Projective Dynamics are fast, but support only limited selection of materials; even classical materials such as the Neo-Hookean elasticity are not supported. Recently, Xu et al. [2015] introduced new “spline-based materials” which c...

Cognitive task analyses (CTAs) have been conducted to better understand the thoughts and actions of modem railroad dispatchers. These have provided information necessary to any investigation of dispatching operations, especially the study of the impact of new communications technology on the dispatching environment. This project was conceived to provide an empirical test-bed for such technologi...

1 – This paper is an effort to develop an FPGAbased real-time digital simulator. FPGA is used instead of parallel processors to simulate electromagnetic transients in power systems. A sample single-phase test systems was used to examine the principle. The mathematical model for the power system under consideration is implemented and simulated using Xilinx ISE 4.2 software and ModelSim simulator.

Virtual characters in games and simulations often need to plan visually convincing paths through a crowded environment. This paper describes how crowd density information can be used to guide a large number of characters through a crowded environment. Crowd density information helps characters avoid congested routes that could lead to traffic jams. It also encourages characters to use a wide va...

This paper proposes a real-time simulation technique for thin shells undergoing large deformation. Shells are thin objects such as leaves and papers that can be abstracted as 2D structures. Development of a satisfactory physical model that runs in real-time but produces visually convincing animation of thin shells has been remaining a challenge in computer graphics. Rather than resorting to she...

A technique for real-time simulation of hoisting cable systems based on a multibody nonideal constraint is presented. The hoisting cable constraint is derived from the cable internal energies for stretching and twisting. Each hoisting cable introduces two constraint equations, one for stretching and one for torsion, which include all the rigid bodies attached by the same cable. The computation ...

In this paper, we present a method to simulate large-scale traffic networks, at real-time frame-rates. Our novel contributions include a method to automatically generate a road graph from real-life data, and our extension to a discrete traffic model, which we use to simulate traffic, demonstrating continuous vehicle motion between discrete locations. Given Ordnance Survey data, we automatically...

A number of techniques have been presented recently to simulate or predict the acoustics of a room. Among these we can find reverberation algorithms based on waveguide meshes and acoustic ray-tracing. Both approaches have disadvantages, such as an excessive amount of computation required (resulting in only off-line simulations) or aliasing phenomena caused by non-uniform speed of sound distribu...