1A multi-segmented dynamic leading-edge flap system is proposed as a candidate for lift enhancement through dynamic flow manipulation. Delta wings with sweep angles of 60 degrees or more will be fitted with the proposed leading-edge device of 3 or more flaps. Each flap is controlled with a… More

Three areas of active missile wing research will be pursued. the first section will evaluate the materials to be used in the inflatable wing spars, ribs, skins, pressure bladders and active elements. specimens of high orthogonality composites (polyurethane-graphite) will be constructed along with… More

An ultra low-cost fuel tankage for expendable turbojet propulsion systems to be used in the longfog missile is proposed. design criteria and techical objectives based on mission requirements and cost-effectiveness are presented. two candidate systems are proposed: one featuring compressor discharge… More

An immediate requirement exists for new techniques for efficient non destructive inspection and repair of composite components such as those that will be used in the "composite weapon" that is under development. IDeally, these operations would be undertaken at the field or the depot level itself,… More

The need for an automated target recognition system that can identify a target from a noisy image, irrespective of the target's orientation or size is identified. A novel pulse-coupled neural network is proposed to meet this need. The first step is to capture the image. Next, a neural network is… More

Ultrasonic motors are novel devices that operate based on the piezoelectric effect. A "smart material" piezoceramic (Lead Zirconium Titanate, PZT) ring is excited by electrical signals and generates a traveling surface wave. The traveling surface wave drives a rotor through a toothed stator. These… More

Fastening and joining technology has lagged behind the progress that has been made in other areas of composites for advanced air vehicles. Aerotech proposes the development of reversible polymeric adhesive bonding of composites using variable frequency microwave energy. With this method,… More

Fastening and joining technology has lagged behind the progress that has been made in other areas of composites for advanced air vehicles. Aerotech proposes the development of reversible polymeric adhesive bonding of composites using variable frequency microwave energy. With this method,… More

Not Available Active Magnetic Bearings (AMBs) with their ability to electronically manipulate rotor system dynamics, add damping as required and operate without lubricants offer an attractive alternative to conventional liquid lubricated bearing systems, especially in flywheel energy storage (FESS)… More

Not Available Vector waveform estimation theory implies that a GPS signal processor be constructed as a centralized estimator, in which inter-path statistical information is utilized in extracting state dynamics information from the spread spectrum signals. TISI has developed and implemented such a… More

Acoustic Bandgap (ABG) materials can serve as acoustic filters to reduce and/or modify acoustic signatures. This is made possible by the incorporation of specific internal geometries within ABG panels, that are produced using solid free form fabricationtechniques. Three different types of (ABG)… More

Acoustic Bandgap (ABG) materials can serve as acoustic filters to reduce and/or modify acoustic signatures. This is made possible by the incorporation of specific internal geometries within ABG panels, that are produced using solid free form fabricationtechniques. Three different types of (ABG)… More