Home >> Tech Briefs >> Mechanics & Machinery
Apr 2011
Variable-Thrust, Multiple-Start Hybrid Motor Solutions

Hybrid propulsion devices are much less sensitive to adverse situations including exposure to external fires, bullet/fragment impact, electrostatic discharge, and inadvertent drop/impacts.

Interceptor boost propulsion has traditionally been dominated by solid rocket systems due to their responsiveness and high mass fraction capabilities. However, increased costs of ...
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Wheel Force Transducer

This transducer could ensure better testing of off-road vehicles.

Aconcept wheel force transducer has been developed that can measure the forces and moments between a tire and a road on a High Mobility Multi-purpose Wheeled Vehicle (HMMWV or Humvee) driven under off-road conditions. The proposed wheel force transducer ...
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Dec 2010
Nozzles for Focusing Aerosol Particles
Parallel Hybrid Vehicles Using Fuzzy Logic Control
Oct 2010
Membrane Pump for Synthetic Muscle Actuation
Nonlinear, High-Fidelity, Aeroelastic Analysis for Novel Configurations
Jun 2010
Designing a Sensorless Torque Estimator for Direct Torque Control of an Induction Motor
Feb 2010
Lightcraft Propulsion for Launching a Small Satellite
Eccentric Mounting and Adjustment System for Belt-Driven Devices
Dec 2009
Developing Fleets of Autonomous Underwater Vehicles
Stability Analysis of Distributed Engine Control Systems
Aug 2009
Using a Steering Shaping Function to Improve Human Performance in By-Wire Vehicles
Jun 2009
Sensing for Controls and Propulsion Health Management in Turbine Engines
Apr 2009
Water Mist System for Shipboard Machinery Space Fires
Axial Field Electric Motor
Dec 2008
SparkJet Actuators for Controlling Flows
Stability of Rotors Supported by Hydrodynamic Film Bearings
Prototype Rocket Engine for a Nanosat Launch Vehicle
Aug 2008
Biaxial and Shear Testing Apparatus With Force Controls
Jun 2008
MEMS Offset-Beam Torsional Electrothermal Actuators
Apr 2008
Tethered, Remotely Operated Miniature Submarine
Feb 2008
The Future of Space Propulsion
Miniature Wheel-Leg Mobile Robots
Dec 2007
Simulations of Brush Contacts of Homopolar Motor/Generators
Generic Miniature Airplane for Research and Development
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