Abstract:Future NASA space missions call for unprecedented levels of precision and reliability. Space Structures like other engineering systems, will suffer from unexpected failures and environmental disturbances. Although a large number of control subsystems are used to nullify or ameliorate the effects of… more
Abstract:A modern military fighter, such as an F-16, carries a multitude of different external store configurations through its design envelope. For certain configuration, flutter or limit cycle oscillations (LCO) restrict the maximum airspeed or the weapon release. As new weapons are introduced into the… more
Abstract:FABRICATION OF METAL MATRIX COMPOSITES (MMC) REQUIRES THE USE OF SOPHISTICATED MANUFACTURING PROCESSES. ONE SUCH PROCESS IS HOT ISOSTATIC PRESSING (HIP) WHICH IS BECOMING A KEY TECHNOLOGY FOR CONSOLIDATING MMC AIRFRAME STRUCTURAL PANELS FOR ADVANCED AIRCRAFT. THE OBJECTIVE IS TO DEVELOP A… more
Abstract:In this SBIR proposal, a variety of new and novel innovations are proposed for the target-tracking estimation problem involving large and rapidly changing target accelerations. An essential feature of the tracking problem is that the radar tracker measurements are best modeled in spherical… more
Abstract:We propose a new paradigm for CAD which aims to support the early stages of mechanical design well enough that designers axe motivated to use the workstation as a conceptual design tool. The basic approach is that of shape synthesis - the automated generation of part designs. Many mechanical… more
Abstract:Future ship defense missiles will be required to intercept highly maneuverable anti-ship missiles at widely varying altitudes. For effective operation of these agile interceptor missiles, the control system design must be nonlinear and robust. The control system design should explicitly take into… more
Abstract:We propose to design a hybrid neural network and knowledge base automatic classification system which dynamically constructs an optimal decision tree. Our proposed hybrid system offers several advantages. Expert system knowledge bases will be used to construct the decision hierarchy with neural… more
Abstract:This Phase I study will evaluate the feasibility of using artificial neural networks (ANNs) for real-time detection of helicopter performance limit exceedance. We propose to integrate two complementary technologies: ANNs and fuzzy logic (FL). ANNs will be used to represent the complex… more
Abstract:Today's battlefield environment poses an increasing challenge due to more sophisticated and capable threats. What is required is to find a method that can detect, classify, and engage targets using multisensor data in a timely, efficient manner and which is robust to countermeasures, environmental… more
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