Special Coverage

Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research
Small Robot Has Outstanding Vertical Agility
Smart Optical Material Characterization System and Method
Lightweight, Flexible Thermal Protection System for Fire Protection

The 3D Product Development Triple Play

By Steve Luby President & Chief Executive Officer VISTAGY, Inc. Waltham, MA Steve Luby, President & CEO, VISTAGY (Waltham, MA). Today, every company is searching for a sustainable competitive advantage, and getting great products to market quickly at a good price is what matters most. Product innovation and speed are the keys to success, and PLM and the latest 3D CAD tools can play a part in achieving these goals. But there are more significant rewards for organizations that take a broader process-oriented view of the entire product development cycle.

Posted in: Articles, Manufacturing & Prototyping, Computer-Aided Design (CAD)


Resource Selection and Ranking

Surfer is an extensible framework for selecting and ranking grid resources. A resource is defined as anything that needs selecting such as compute resources, storage resources, and data resources. The user specifies the set of resource types desired, the constraints that must hold over all the resources, and the ranking function to be used to order the resources. For each request received, Surfer returns a set of resource tuples, where each tuple contains a resource instance for each resource type requested, each tuple satisfies the specified constraints, and tuples are ordered by descending values of the given ranking function. Constraints and ranking functions are Boolean and numeric expressions, respectively, using a set of built-in arithmetic, Boolean and relational operators, and a set of functions supplied by information providers, which are implemented independently of the framework and integrated into the system using a single configuration line.

Posted in: Briefs, Software, Systems management


Accident/Mishap Investigation System

InvestigationOrganizer (IO) is a Webbased collaborative information system that integrates the generic functionality of a database, a document repository, a semantic hypermedia browser, and a rulebased inference system with specialized modeling and visualization functionality to support accident/mishap investigation teams. This accessible, online structure is designed to support investigators by allowing them to make explicit, shared, and meaningful links among evidence, causal models, findings, and recommendations.

Posted in: Briefs, TSP, Software, Simulation and modeling, Imaging and visualization, Data management, Accident reconstruction


Better Finite-Element Analysis of Composite Shell Structures

A computer program implements a finite-element-based method of predicting the deformations of thin aerospace structures made of isotropic materials or anisotropic fiber-reinforced composite materials. The technique and corresponding software are applicable to thin shell structures in general and are particularly useful for analysis of thin beamlike members having open cross-sections (e.g. I-beams and C-channels) in which significant warping can occur.

Posted in: Briefs, TSP, Software


Computing Spacecraft-Pointing Vectors for Limb Tracking

LMBTRK is a computer program that is used together with two software libraries known as ERHAND and HYBRRD to generate spacecraft-pointing vectors for limb-tracking maneuvers needed for experiments on propagation of radio signals through planetary atmospheres. LMBTRK determines, as a function of time, the direction in which one must point a ray (representing a radio beam) emitted by a spacecraft in order to make the ray pass through a planetary atmosphere on its way to a receiving station at a known location. LMBTRK was written for Sun computers running the Solaris operating system and has been running on a cluster of such computers used in the Radio Science System of the Cassini Spacecraft mission.

Posted in: Briefs, TSP, Software, Computer software and hardware, Spacecraft


Enhanced Master Controller Unit Tester

The Enhanced Master Controller Unit Tester (EMUT) software is a tool for development and testing of software for a master controller (MC) flight computer. The primary function of the EMUT software is to simulate interfaces between the MC computer and external analog and digital circuitry (including other computers) in a rack of equipment to be used in scientific experiments. The simulations span the range of nominal, off-nominal, and erroneous operational conditions, enabling the testing of MC software before all the equipment becomes available.

Posted in: Briefs, TSP, Software, Computer simulation, Computer software and hardware


Rover Graphical Simulator

Rover Graphical Simulator (RGS) is a package of software that generates images of the motion of a wheeled robotic exploratory vehicle (rover) across terrain that includes obstacles and regions of varying traversability. The simulated rover moves autonomously, utilizing reasoning and decision-making capabilities of a fuzzy-logic navigation strategy to choose its path from an initial to a final state. RGS provides a graphical user interface for control and monitoring of simulations.

Posted in: Briefs, TSP, Software


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