Abstract:… of helium and rubidium vapor at elevated pressure and temperature. Significant challenges exist because rubidium is a very reactive material. In response, our team proposes to develop a contamination-free, all-metal, hermetic, circulation system based on gas-bearing… more
Abstract:… military operations, and their use will increase substantially in the future. The propulsion system is a key design constraint in any UAS, and current small gas turbines for these vehicles are limited by the conventional oil-lubricated rolling element bearings used to… more
Abstract:… advanced systems to convert thermal energy into electric power. These systems must be reliable, efficient, and lightweight. In response, we propose to develop a turbo-Brayton power converter with high efficiency and specific power. The converter will use gas bearings to… more
Abstract:The Army uses Unattended Ground Sensors (UGS) for the location and tracking of enemy soldiers and vehicles. The sensors can often determine range and relative bearing to the signal source, but without knowing its own orientation, these data cannot be converted to the geo… more
Abstract:… aircraft to support U.S. military and peacekeeping interests. The ability to quickly and safely launch aircraft can become a key limitation for an aircraft carrier when trying to deliver the maximum amount of warfighter capability. Currently, the wheel bearings on the… more
Abstract:… with additional heat soak between pulses. To address this issue, a thermal barrier on the exterior exit cone and nozzle is proposed. This solution enables greater mission range and flexibility by minimizing heat transfer to the exit cone bond-line and adjacent bearing… more
Abstract:In this proposed Phase I Project, Powdermet will develop a low cost solution to contamination issues currently involved in spherical plain airframe bearings. The proposed solution will utilize an advanced low friction cermet. This material will be capable for application as a… more
Abstract:… aircraft carriers. Increases in aircraft weight and takeoff speed require takeoff systems with reliable components to withstand the increase in force put on the system by the advanced aircraft. In this project, Powdermet will target the improvement of wheel bearings for both… more
Abstract:The overall goal of the Phase II program is to move QuesTek"s new stainless bearing steel alloy development efforts from the Phase I prototype scale, to intermediate- and full-scale alloy production. The Phase II program will culminate with a demonstration of the new… more
Abstract:Safe, Inc. proposes a physical shield to protect spherical bearings from the abrasive particulate. Since many rotorcraft rod-ends are installed in exposed locations, sand and dirt cause damage to the spherical bearings and their liners. By preventing these particulate from… more
Abstract:…al kHz to several MHz. Data rates will be sufficient to transmit slow scan imagery. In Phase I
we showed that data rates of greater than 100 kbps could be supported at horizontal ranges of 125
meters from a tunnel that was 21.5 meters deep. This tunnel was in a copper bearing… more
Abstract:The proposed load-bearing, tank-applied, multi-layer insulation system consists of a set of highly reflective radiation shields made from 1 mil thick aluminized Mylar that is supported from a "pop-up tent like" support frame. In addition, the support frame carries the… more
Abstract:… is an adaptive physics based prognostic tool. The idea is motivated by damage mechanics, which associates the vibration amplitude and natural frequency of the vibration to the damage status. This idea has been experimentally proven to be very accurate in bearing failure… more
Abstract:…essor will process the multi-static"s processors contact reports and fuse common contacts across different sonobuoys. The LRT processing is a proven method to dramatically improve the detection and false alarm characteristics of multistatic contacts and overcome the bearing… more
Abstract:Liner wear in spherical bearings used in fixed wing and rotor craft can be significantly accelerated by liquid and solid contamination. Contamination is particularly problematic with oscillating loads. The proposed solution will prevent contamination of plain airframe bearings… more
Abstract:… meets the SWaP constraints can provide a rear view mirror capability to detect, alert and avoid air traffic from behind. For cooperative UAS, the proposed passive system can augment on-board active systems by providing postern data at higher resolutions (frame rates and bearing… more
Abstract:ABSTRACT: This proposal describes an analytical software approach to model rolling element bearings for gas turbines and similar drive systems. Detailed approaches for modeling bearing material fatigue life, oil churning, and tribology are presented. The… more
Abstract:… in extreme high and low temperature environments as a technical gap to exploring deeper into our solar systems. The need for high temperature motors and actuators for robotic mechanisms is critical to explore the surface and atmosphere of Venus, Jupiter and/or Saturn.Bear… more
Abstract:…s provide a promising intersection of objectives for long term collaborations. The proposed innovation is an enabling technology for robotic planetary sample return missions. The proposed concept is a passive mechanism that works within a larger sample drilling system. Bear… more
Abstract:… to emulate the 6-DOF relative-motion trajectories of spacecraft. The Phase I effort validated HOMER's capabilities and reduced to hardware the Dynamic Payload Pendulum (DPP), an actively controlled pendulum that provides the equivalent of a 5-DOF air-bearing.… more
Abstract:… from small animal herds. The system uses a residence-sized boiler, modified to produce higher operating temperature and pressures to improve cycle efficiency. The steam from the boiler powers a unique turbo-alternator spinning on fluidically-damped gas bearings, also… more
Abstract:… this proposal is to produce an instrument to automatically measure the corneal and scleral surface to facilitate the manufacture of ocular surface prosthetics with a lens diameter up to 24 millimeters. Prior art attempts to measure surface topology, especially in the bearing… more
Abstract:…. This effect is more pronounced in the dual pulse rocket motors where additional heat soak is experienced due to presence of Inter Pulse Delay (IPD). The additional delay results into extra heat soak there by possible damaging the housing components such as flex bearing. In… more
Abstract:…lubricants is not possible; while the development and implementation of long-lasting solid lubricants can be considered as a viable option. Hence there is a need for finding an enabling technology as a solution for such complex issues in aerospace turbine and automotive bearing… more
Abstract:… can be directed to other solutions, innovations or efforts. The corrosion resistant coating will spawn opportunities throughout all forces in the Department of Defense. Additionally, the insoluble polymer has the potential for cookware, gaskets, bearings,… more
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