Researchers Develop Multiphysics Model for Electro-Thermal Analysis of UAV

Vives College University and Kulab (KU Leuven University campus Ostend) in Belgium are undertaking an aeronautical research program for the development of a new UAV aimed at performing scientific missions along the Belgian coastline above the North Sea. The main performance requirement of the UAV, dubbed Litus, is to be electrically powered with a range of 160 km and a payload up to 5 kg.

Posted in: Technology Update, Aerospace, Defense, Simulation Software, Simulation and modeling, Electrical systems, Thermal management, Unmanned aerial vehicles

Simulation Tools Prevent Signal Interference on Spacecraft

NASA Technology

Launching a satellite into space requires painstaking preparation, not only to make sure that a multitude of technologies are functioning, but also to ensure that critical components are working together in unison. A great example: the communication systems onboard satellites and the rockets used to launch them.

Posted in: Articles, Spinoff, Aerospace, Defense, Information Technology, RF & Microwave Electronics, Software

Designing quieter aircraft via acoustic simulation

Greater fuel efficiency and low emission requirements have grown into such an urgent imperative in aircraft design that it often overshadows an equally significant factor in air travel—noise.

Posted in: Technology Update, Aerospace, Defense, Simulation Software, Computer simulation, Design processes, Noise

Spatial Disorientation Flight Simulator

Environmental Tectonics Corporation (ETC)
Southampton, PA

Aircrew Training Systems (ATS), a division of Environmental Tectonics Corporation, has been selected by the U.S. Army Contracting Command to provide the Colombian Air Force (FAC) with a spatial disorientation flight simulator. The GYRO IPT II will help FAC pilots to recognize in-flight conditions that contribute to spatial disorientation. The new system will be installed at the FAC Aerospace Medicine Center (CEMAE) in Bogotá, Colombia next spring.

Posted in: Application Briefs, Aerospace, Defense, Simulation Software, Computer simulation, Human factors, Career and professional development, Education

Chrono: A Parallel Physics Library for Rigid-Body, Flexible-Body, and Fluid Dynamics

The Chrono::Engine software is a general-purpose simulator for three-dimensional multi-body problems. Specifically, the code is designed to support the simulation of very large systems such as those encountered in granular dynamics, where the number of interacting elements can be in the millions. Target applications include tracked vehicles operating on granular terrain, or the Mars rover operating on discrete granular soil.

Posted in: Briefs, Aerospace, Defense, Software, Computer software / hardware, Particulate matter (PM), Off-highway vehicles and equipment, Spacecraft

MISRA C:2012

For C programmers working on safety- critical applications, following restrictions and guidelines to ensure safe-coding practices can be painful. Features of the language designed to make your work easier, more efficient, or provide work-arounds for obstacles are often just the features that the guidelines disallow. However, whether for avionics or in the midst of battle, a problem with the software is the last thing needed. The risks prohibit taking chances.

Posted in: Articles, Aerospace, Software, Computer software / hardware, Safety critical systems, Regulations, Risk management

Software Design for CFD Rotary-Wing Aeromechanics Modeling

Helicopter flight involves many multidisciplinary physics problems that are difficult to predict with today’s engineering modeling and simulation tools. Rotor aerodynamic systems involve complex interactions among the rotor blades, rotor wakes, and fuselage, and they create challenges such as simultaneous modeling of rotating and nonrotating components; retreating-blade, low-speed dynamic stall; advancing-blade transonic flow; rotor “trim” requirements to balance aerodynamic and dynamic forces for particular control settings; and strong coupling between rotor-blade aerodynamics and rotor blade dynamics (both rigid and elastic blade motion).

Posted in: Briefs, Software, Computational fluid dynamics, Aerodynamics, Rotary-wing aircraft

Crumple Zone Software Absorbs Attack Effects Before System Failures

A higher level of structural and operational endurance and ruggedness can be achieved in software systems by strategically introducing crumple zones (CZs) in the system architecture. Analogous to the crumple zone in an automobile, a CZ stands before critical components and “absorbs” the effects of attacks by localizing or eliminating the damage they can cause and leaving the critical components intact and unaffected. The concept of software CZs is broadly applicable; this work focuses on CZs for SOA.

Posted in: Briefs, Software, Architecture, Computer software / hardware, Cyber security

General Runtime/Architecture for Many-core Parallel Systems (GRAMPS)

The era of obtaining increased performance via faster single cores and optimized single-thread programs is over. Instead, a major factor in new processors’ performance comes from parallelism: increasing numbers of cores per processor and threads per core. In both research and industry, runtime systems, domain-specific languages, and more generally, parallel programming models, have become the tools to realize this performance and contain this complexity.

Posted in: Briefs, Software, Architecture, Communication protocols, Computer software / hardware

Weapon Center of Mass Calculator

The Weapon Center of Mass (COM) software allows researchers to easily determine mass properties of a weapon system. The tool presents a photograph of the weapon and allows the user to place weight anywhere on the weapon by clicking on the screen. After the weight is placed, the software returns the mass properties of the weapon, including the effects of the added weight. It is based on fundamental equations found in physics and biomechanics, and can determine the effects of as many as four added weights. The added weight can be accoutrements (such as new sights), additional weapons (such as a grenade launcher), or any other object that is mounted to the weapon.

Posted in: Briefs, Software, Computer simulation, Computer software / hardware, Defense industry