In aerospace and defense, training is being carried out on the web by viewing PowerPoint presentations, manuals and videos that are limited in their ability to convey information to the technician. Interactive training in the form of 3D is a more cost effective approach compared to creation of physical simulations and mockups. This paper demonstrates how training using interactive 3D simulation...

In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel. From this data we derived a channel model that is synthesising the measured channel impulse response. It allows the realistic simulation of the multipath channel by approximating every single reflection. This model includes time variant reflectors approaching and receding in dependen...

In this paper, we study the tools and methodologies for the analysis and design of control systems in the presence of random uncertainty. For analysis, the methods are largely based on the Monte Carlo simulation approach, while for design new randomized algorithms have been developed. These methods have been successfully employed in various application areas, which include systems biology, aero...

In this paper, the dynamics and control of a novel mobile robot on the International Space Station (ISS) are discussed. The Japan Aerospace Exploration Agency (JAXA) is developing a robotic system which has an extendable arm and several tethers to support Extravehicular Activity (EVA) performed by astronauts. The robotic arm is build from a light material and can be extended longer. The vibrati...

LA-UR-08-1690 30 Associate Directorate for Theory, Simulation, and Computation (ADTSC) LA-UR-09-01756 Understanding the nature of compressible turbulence is of fundamental importance in many applications ranging from astrophysics to combustion and aerospace engineering. Highly compressible turbulence is now thought to control star formation in dense molecular clouds [1]. The ability to paramete...

A Fictitious Domain Approach to the Direct Numerical Simulation of Incompressible Viscous Flow past Moving Rigid Bodies: Application to Particulate Flow R. Glowinski,∗ T. W. Pan,∗ T. I. Hesla,† D. D. Joseph,† and J. Périaux‡ ∗Department of Mathematics, University of Houston, Houston, Texas 77204-3476; †Aerospace Engineering and Mechanics, University of Minnesota, 107 Ackerman Hall, 110 Union St...

In 2002 the German Aerospace Centre (DLR) performed a measurement campaign of the land mobile multipath channel. From this data a channel model was derived that is synthesising the measured channel impulse response. It allows the realistic simulation of the multipath channel by approximating every single reflection. This model includes time variant reflectors approaching and receding in depende...

Flow simulation is a computational tool for exploring science and technology involving flow applications. It can provide cost-effective alternatives or complements to laboratory experiments, field tests and prototyping. Flow simulation relies heavily on high performance computing (HPC). We view HPC as having two major components. One is advanced algorithms capable of accurately simulating compl...

In the 1970s, a co-authorship network in the field of Simulation Optimization of supply chains was established, supported by local associations. Then, the development of this network was favored by the foundation of new co-authorships and the consolidation of already existing. The purpose of this study is to analyze the structure, collaboration patterns and the time-evolution of the co-authorsh...

Reliability of electromechanical actuation systems as those used in aerospace applications may be improved by a proper choice of the motor, of its control strategy and of the architecture of the power electronics feeding the motor. This paper presents a Simulink library for the simulation of the motor and of its control electronics allowing to choose between three types of motor and between two...