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Briefs
Unmanned Systems

Experimental Assessment of Entanglement for an Unmanned Underwater Vehicle with an Open, Three-Bladed Propeller

This research evaluates the entanglement of an unmanned underwater vehicle (UUV) operating in marine vegetation common to...

Briefs
Motion Control

Fabrication and Testing of High-Speed Single-Rotor and Compound-Rotor Systems

The X2 Technology Demonstrator recently achieved a level flight speed over 250 knots, proving the basic concept of the coaxial compound configuration.

Briefs
Sensors/Data Acquisition

Instrumentation for Fabrication and Testing of High-Speed Single-Rotor and Compound-Rotor Systems

To support the development of next-generation rotorcraft, precision data acquisition is required.

Articles
Design

Advanced Assembly Solutions for the Airbus RACER Joined-Wing Configuration

The Rapid And Cost Effective Rotorcraft (RACER) demonstrator is being developed by Airbus Helicopters (AH) to further validate the compound rotorcraft configuration.

Application Briefs
Mechanical & Fluid Systems

Turbine Rotor Assembly Systems

RPI UK has installed two integrated rotor measurement and assembly platforms (iMAPs) at Atlanta-based Delta Airlines;

Application Briefs
Aerospace

Hull Vibration Monitoring System

Brüel & Kjær
Nærum, Denmark
+45 7741 2000
For more info click here

BAE Systems has awarded Brüel & Kjær a Design Development Agreement to deliver a Hull Vibration Monitoring...

Briefs
Materials

Spectrum Fatigue of 7075-T651 Aluminum Alloy Under Overloading and Underloading

Most structural members and machine components are subjected in service to cyclic loadings of varying amplitude. The variation in stress level follows either a...

Application Briefs
Aerospace

Clean Sky Open Rotor Engine Components

+44 (0)1527 517 715
www.gkn.com/aerospace

GKN Aerospace has delivered the two rotating frames for a major research program exploring open rotor aero-engine designs with a goal of achieving a 20%...

Application Briefs
Aerospace

Upmast Radar Systems

Kelvin Hughes
Enfield, UK
+44 19 9280 5200
www.kelvinhughes.com

Kelvin Hughes recently installed its new SharpEye™ upmast radar system on four new vessels commissioned by the Trinidad and Tobago...

Technology Update
Aerospace

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
Mechanical & Fluid Systems

Stability of Rotors Supported by Hydrodynamic Film Bearings

The document, "Hydrodynamic Fluid Film Bearings and Their Effect on the Stability of Rotating Machinery" represents a lecture in a series "Design and Analysis of High-Speed Pumps," held in 2006 under the auspices of the North Atlantic Treaty Organization. The document introduces the...

Briefs
Mechanical & Fluid Systems

Generic Miniature Airplane for Research and Development

The Air Force Research Laboratory has promulgated the geometrical design of a miniature airplane denoted the Generic Micro Aerial Vehicle (GENMAV). This design is intended to serve as a...

Briefs
Information Technology

Parametric Design of Three-Dimensional Hydrodynamic Shapes

A method of parametric design of bodies having arbitrary three- dimensional shapes has been invented. The method is intended mainly for use in the design, analysis, and manufacture...

Briefs
Electronics & Computers

Miniature Semiconductor Diodes as Pumps and Motors

Experiments have shown that when a miniature semiconductor diode floats in an aqueous solution and an alternating electric field is applied, (1) the diode rectifies the alternating potential...