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Briefs
Mechanical & Fluid Systems

Calculating Electrical Requirements for Direct Current Electric Actuators

When designing electro-mechanically actuated systems, there are several electrical design requirements that must be determined.

Articles
Electronics & Computers

Acceleration Resistant HiK Heat Spreader

As electronic technologies advance in defense and aerospace applications, heat fluxes are becoming larger and more centralized[1,2]. In order to...

Briefs
Robotics, Automation & Control

Experimental Confirmation of an Aquatic Swimming Motion Theoretically of Very Low Drag and High Efficiency

It has been established theoretically that self-propulsion of deformable bodies in ideal fluid can occur with a careful specification...

Briefs
Aerospace

Angular Random Walk Estimation of a Time-Domain Switching Micromachined Gyroscope

The primary metrics that prohibit the use of microelectromechanical systems (MEMS) gyroscopes for navigation-grade inertial navigation units (IMUs) are angle...

Articles
Defense

RECAT Wake Turbulence Recategorization

Aviation safety is a fundamental concern for all stakeholders. The traveling public demands the highest safety standards, but also wants convenience and reliability at a low price with minimal...

Briefs
Medical

Blast-Induced Acceleration in a Shock Tube

High-fidelity simulation of blast flow conditions can aid in developing strategies to mitigate blast-induced brain injury.

The prevalence of blast-induced traumatic brain injury (bTBI) has...

Briefs
Aerospace

Non-Destructive Damping Measurement for MEMS Acceleration Switches

Microelectromechanical systems (MEMS) three-axis acceleration threshold sensors have been developed to measure acceleration threshold levels using voltage switching when the...

Briefs
Test & Measurement

Damping Measurement for Wafer-Level Packaged MEMS Acceleration Sensors

Microelectromechanical system (MEMS) three-axis acceleration threshold sensors have been developed to measure acceleration threshold levels using voltage switching when...

Technology Update
Motion Control

Sikorsky’s All-New Raider Helicopter Prototype is Ready to Fly

Sikorsky Aircraft unveiled in early October the first of two S-97 Raider lightweight tactical helicopter prototypes. In 2015 Sikorsky plans to offer the S-97 as a replacement...

Briefs
Medical

Effect of Acceleration Frequency on Spatial Orientation Mechanisms

Extreme motion environments can induce loss of visual acuity, motion sickness, and spatial disorientation. Understanding how human sensory integration of acceleration stimuli affects spatial awareness will improve models of spatial disorientation and mishap analysis. While there...

Briefs
Physical Sciences

Bi-Axial Vibration Energy Harvesting

For air platforms, the installation of Structural Health Monitoring (SHM) systems is complicated by the fact that the majority of SHM devices need to be fitted on internal aircraft structure, underneath...

Application Briefs
Electronics & Computers

Embedded Graphics Processor

Rockwell Collins (Cedar Rapids, IA), a designer of communications and avionics systems for the aerospace and defense industries, has selected the AMD Radeon™ E2400 embedded graphics processor for inclusion in...

Briefs
Test & Measurement

Process for Testing Aeromedical Equipment

Medical devices are designed to function in environmentally controlled locations, such as stationary hospitals, and not within the harsh, dynamic aircraft environment. Yet, the same medical devices...

Briefs
Electronics & Computers

Testbed for Reconfigurable Network Security Research and Experimentation

A novel, reconfigurable network testbed has been developed, suitable for the implementation, testing, and analysis of new and existing network-based defenses against...

Briefs
Electronics & Computers

Use of a Heat Pipe to Cool Aircraft Electronics

The first steps have been taken in a continuing project to study the suitability of dissipating heat from electronic and electric-actuator equipment aboard an aircraft by using a loop heat pipe, containing water as the working fluid, that delivers the heat to the exterior aircraft skin. The first...

Briefs
Mechanical & Fluid Systems

A New Method for Determining Aeroballistic Parameters From Flight Data

Dr. Gregg Abate, an AFRL exchange engineer, developed a new method for determining aeroballistic parameters from projectile flight data. Assigned to the Fraunhofer...