Safe, Inc. was awarded a Phase II SBIR program from the United States Navy/NAVAIR, to further develop and design Safe’s proposed surface flotation device (raft) for an aviation mishap survivor. The lightweight, pocket-sized raft will be worn or carried on the aircrew without interfering with the aviator’s flight duties. Safe’s proposed design included auto-inflation, a method for easy survivor entry, and effective protection from exposure to cold water. The Phase II included computational fluid dynamics (CFD) modeling, inflator design revision, optimization through DOE with CO2 and N2O, delivery of three inflators, testing, and manufacturing.
Safe was awarded a Phase I SBIR program from the United States Navy to develop/design a single test rig with modular elements that can be reconfigured to address any rotor assembly or component. Safe designed hydraulic actuators that can be moved into different locations and orientations for any combination of centrifugal, bending, and torsion loads. The hydraulic system accommodates differing numbers of actuators and load ranges. The control and data acquisition software also reconfigure to operate one or many actuators at different loads, independently or in unison, while measuring strain and load data.
Safe was awarded a Phase I SBIR program from the United States Army to address and remedy problems with current passive occupant restraint systems in helicopters. These restraint systems do not adequately restrict occupants’ upper torso/head motion during a crash event with a combined forward and vertical acceleration component. Safe will be developing a new passive occupant restraint system to reduce the occupant’s motion during these types of crash events. Safe’s new restraint system is also anticipated to be more intuitive, simpler, and easier to use.
Safe was awarded a Phase I SBIR program from the United States Army to develop a new spall liner for combat vehicles. Safe’s new spall liner design will benefit vehicle occupants by protecting them from the hazardous conditions associated with combat, including head injury. Occupants of ground combat vehicles are at risk of head injury when the vehicle is attacked by an underbody blast and its violent motion causes the head to strike the interior. Occupants are also at risk from spall, fragments of material liberated from the interior wall of the vehicle by shock waves or overmatched threats.
Safe was awarded a Phase I program from the United States Navy to address and remedy several deficiencies with manually-adjusted tethers currently used. Safe is developing designs to improve manual slack monitoring and adjustment, help eliminate hindrance of movement due to nuisance locking; decrease annoyance loads on the occupant; and, correct inconvenient or unrealistic access to the airframe-mounted control points of the systems. Safe’s program utilizes several prototype build phases for hands-on assessment of functionality of the system.
Safe, Inc. has been awarded a Phase I SBIR program from the United States Navy, to design a surface flotation device (raft) for an aviation mishap survivor. It will be lightweight and pocket-sized to enable it to be worn or carried on the aircrew without interfering with the aviator’s flight duties. The design includes auto-inflation, a method for easy survivor entry, and provides effective protection from exposure to cold water.
Safe, Inc. has been awarded a Phase I SBIR program from the United States Air Force, to develop a full-bore, quick-opening valve suitable for starting high-speed (supersonic) Ludwieg tube wind tunnels. The valve will open completely in 50 ms or less, be able to seal against 600 psi air at 450° F, and have a lifetime of at least 50,000 cycles. The design effort will include a finite element analysis of the valve components to ensure proper design/stress management and dynamic analysis of the valve opening process to ensure that the valve opening time is adequate and that the design is structurally sound.
Safe, Inc. has been awarded a Phase I SBIR program to develop an innovative tactical bulk fuel delivery system restraint system for the CH-53K King Stallion rotorcraft currently in development for the U.S. Marine Corp. The restraint system will solve current problems of high crew workload, excessive weight, inability to meet the required retention loads when the tanks are filled to capacity, and the inability to roll fully loaded tanks on the track roller system in the CH-53K. Safe’s design will meet the Navy’s 20/20/10 G loading requirements with full tanks that can be rolled in and out of the aircraft, minimizing crew effort and fatigue, and reducing load time, while increasing operational capability, reliability, maintainability, and affordability.
September 2014 – Innovative Unified Damage Mechanisms-Based Model to Predict Remaining Useful Life for Rotorcraft Structures
Safe, Inc., in partnership with a major research University, has been awarded a Phase I STTR program to demonstrate the feasibility of using the newly developed concept of acoustic information entropy to measure material damage and predict the remaining useful life of commercially available rotorcraft alloys. Efforts to address the response of materials to damage are typically made by deterministic or probabilistic approaches through fracture mechanics (FM) and damage mechanics (DM), where a crack tip is well defined. Random damage, has, however, been largely neglected. The program’s priority will be to establish the process framework and to develop and demonstrate the feasibility of a resultant computer model that can accurately predict remaining useful life in rotorcraft components.
Safe, Inc. has been awarded a Phase I SBIR program to develop and demonstrate innovative and advanced concepts for seat restraint systems, which will be intuitively easier and faster to use under any adverse conditions and can be readily integrated into existing forward, aft, and side-facing troop seats in military rotorcraft, while providing the necessary protection requirements to prevent injuries during crash. An easier-to-use more intuitive restraint system would not only facilitate proper use reducing aircraft-related crash injuries and deaths, but would be expected to increase the success ratio of troop extractions, which could lead to saved helicopters as well as saved lives.