NASA Tech Needs

Technology for Drilling, Cutting, and Separating Materials

A company seeks alternative methods for sawing, drilling, boring, cutting, or otherwise separating materials such as wood, metal, and composites. When compared to conventional methods, the new technology should be faster, easier, provide a cleaner cut in terms of smoothness and dust in the work area, and offer a long tool life. It must minimize noise levels, require low physical force during operation, and be safe for use in an open environment.

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Sensations and Materials for Lip Products

A company seeks unique materials to add to lip products for new lip sensations and experiences (such as cooling, warming, numbing, tingling, and flavors), solutions that can impart prolonged sensate experiences, and solutions that can impart not-yet-known sensations. Products should meet the following guidelines: good aesthetics (no intense color and/or objectionable odor), compatibility with cosmetic solvents and colors, thermal stability, and costs competitive with other lip product ingredients.

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Protecting Anodized Aluminum in a Highly Alkaline Environment

A company seeks to protect the surface of an aluminum product when exposed to the harsh alkaline environment inside a dishwasher. The product currently has a hard-anodized surface to protect against abrasion. The company seeks to avoid an exterior coating that can be abraded away. Preferably, the surface would be made impervious by adding to the anodized coating, changing the material of the coating, or changing the chemistry by which it’s made.

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Composite Materials — Partnership Opportunities

Organic matrix composite materials have the potential for a significant mass reduction compared to metallic materials for aircraft and spacecraft, and have been a NASA focus for many years. The major technology drivers for these applications include large-scale composites manufacturing, composite damage tolerance and detection, and primary structure durability. Successful composite technologies will demonstrate concepts with reduced weight and cost with no loss in performance when compared to technologies for metallic concepts.

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Smart and Intelligent Sensors

Rocket engine testing is the primary mission for Stennis Space Center. Test stand facilities include the B-1/B-2 complex built for the Apollo Program, which is now used to test the RS-68 engine. A number of smaller test stands are available for testing components and lower thrust rocket engines. A-3 is a new test stand under construction that will have the capability to simulate high-altitude conditions. For each test article, the customer expects to receive highquality measurements to support their engine design, validation, and certification requirements. Making these measurements requires hundreds or thousands of sensors.

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Intelligent Integrated System Health Management

Stennis Space Center is NASA’s primary center for rocket engine testing. The facilities include large test stands built for the Apollo Program that are being used to test Space Shuttle Main Engines, smaller test stands for smaller rockets and components, and a new test stand, the A3 Test Stand with capability to simulate high-altitude conditions. All test stands are complex systems that provide oxidizer, fuel, and purge fluids, often at extreme pressures and high velocities. The test stand systems must also manage cryogenic temperatures from liquid oxygen, liquid hydrogen, and liquid nitrogen, as well as high temperatures from rocket plumes. Further more, test stands include hundreds of sensors, and accurate and reliable measurement systems to obtain data that can be used in the design, validation, and certification of engines and components. Rocket engine testing is a complex and potentially hazardous operation, not unlike a spacecraft launch. Protocols and processes are followed in order to ensure readiness to test. In order to improve efficiencies and safety in test stand operations, it is crucial to develop systems that can help provide comprehensive and continuous vigilance of each element on the test stand. An ISHM system will provide this capability. Technology Needs Integrated System Health Management (ISHM) capability is fundamentally linked to the management of data, information, and knowledge (DIaK) to determine the health of a system. It is similar to having a team of experts who are all individually and collectively observing and analyzing a complex system, and communicating effectively with each other in order to arrive to an accurate and reliable assessment of its health. ISHM is a capability that is achieved by integrating DIaK that might be distributed throughout the system elements. DIaK must be available to any element of a system at the right time and in accordance with a meaningful context. ISHM Functional Capability Level (FCL) is measured by how well a system performs the following functions: (1) detect anomalies, (2) diagnose causes, (3) predict future anomalies/ failures, and (4) provide users with an integrated awareness about the condition of every element in the system and guide user decisions. The primary technologies that enable achievement of ISHM capability include: Algorithms/approaches/methodologies for anomaly detection. Approaches and methodologies for root-cause analysis to diagnose causes of anomalies. Approaches and methodologies for prediction of future anomalies. Architectures/taxonomies/ontologies that enable management of DIaK – where management implies distributed storage, sharing, processing, maintenance, configuration, and evolution. Software environments that integrate contributing technologies in a modular plug-and-play fashion, adhering to a defined architecture/ taxonomy/ontology. Standards that allow plug and play and interoperability among elements of an ISHM system. User interfaces to provide the user with integrated system awareness. Developing solutions to the primary technologies must also consider intelligence and integration. In telligence implies that a credible ISHM capability that allows systematic augmentation of that capability must be a knowledgebased system. implies that inferences and decisions about the health of any element must incorporate and reason using other elements and physical phenomena through out the system. More Information For additional information, or to discuss ideas about this concept, contact John Lansaw of Stennis Space Center at 228-688- 1962 or visit nasa@techbriefs.com.

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Triclosan Replacement

A company seeks a replacement for triclosan, a popular anti-microbial agent used in household products. The replacement requires thermal stability to withstand manufacturing temperatures (such as polymer melt temperatures during molding), UV stability, and compatibility with anionic detergents. It should also be environmentally friendly, sustainable, broad-spectrum, and cause no color change or odor in the product to which it is applied.

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