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Multi-Frequency Shock Survivable Fuze Components
Navy SBIR 2016.1 - Topic N161-019 NAVAIR - Ms. Donna Attick - [email protected] Opens: January 11, 2016 - Closes: February 17, 2016 N161-019 TITLE: Multi-Frequency Shock Survivable Fuze Components TECHNOLOGY AREA(S): Electronics, Weapons ACQUISITION PROGRAM: PMA 280, Tomahawk Weapons Systems The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), 22 CFR Parts 120-130, which controls the export and import of defense-related material and services, including export of sensitive technical data, or the Export Administration Regulation (EAR), 15 CFR Parts 730-774, which controls dual use items. Offerors must disclose any proposed use of foreign nationals (FNs), their country(ies) of origin, the type of visa or work permit possessed, and the statement of work (SOW) tasks intended for accomplishment by the FN(s) in accordance with section 5.4.c.(8) of the solicitation. Offerors are advised foreign nationals proposed to perform on this topic may be restricted due to the technical data under US Export Control Laws. OBJECTIVE: Design and develop new technology for a system consisting of a firing switch, delay element and high voltage capacitors capable of surviving high amplitude and high frequency shock environments experienced in multi-warhead systems and during high speed penetration of hardened ship hull targets combined with the more traditional lower amplitude and frequency shock environment experienced during deeply buried target penetration. DESCRIPTION: Current U.S. Navy anti-ship weapons use mechanically out-of-line fuzes with hot bridge wire detonators with fixed pyrotechnic functioning times, thus limiting their potential effectiveness and operational flexibility. The development of in-line fuzes with a firing switch, delay element and high voltage capacitors would increase overall weapon effectiveness against surface and land targets. There is potential for considerable advancement of the technology utilizing a firing switch, delay element and high voltage capacitors. While the U. S. Air Force has invested in hardened fuzing for prosecuting hard and deeply buried targets, the survivability of these systems in multi-warhead systems and anti-ship weapons may be difficult to achieve as they are vastly different environments. Pyroshock associated with multi-warhead systems is a complicated severe environment proven difficult to survive. Compounding the pyroshock environment with penetration of steel targets results in an environment that has its own set of requirements for performance and survivability. Anti-ship warheads tend to be smaller than warheads for hard and deeply buried targets. In addition, ship hulls are typically steel rather than concrete. Unlike land targets, ship targets yaw and pitch depending on sea state, reducing the ability to control weapon impact obliquity. These factors will increase the peak acceleration and frequency of the shock transmitted to the firing switch, delay element and high voltage capacitors. In order to robustly prosecute ship targets, a firing switch, delay element and high voltage capacitors must be designed to survive ship penetration environments in addition to hard and deeply buried targets. Current and anticipated DoD budget constraints increase the likelihood that new weapon systems and new payloads for existing weapon systems will be required to be effective against a wide variety of targets in order to reduce total ownership costs and maximize operational flexibility. The survivability of a firing switch, delay element and high voltage capacitors technology in delayed multi-warhead systems is high risk due to the demanding pyroshock and penetration environments. The ability to survive a notional shock response spectrum from 500 Hz to 100,000 Hz in the longitudinal, vertical and lateral directions with G levels between 4.00E+02 to 2.00E+05 and a maximum transient duration of 0.25 msec is desired. Work produced in Phase II may become classified. Note: The prospective contractor(s) must be U.S. owned and operated with no foreign influence as defined by DoD 5220.22-M, National Industrial Security Program Operating Manual, unless acceptable mitigating procedures can and have been implemented and approved by the Defense Security Service (DSS). The selected contractor and/or subcontractor must be able to acquire and maintain a secret level facility and Personnel Security Clearances, in order to perform on advanced phases of this project as set forth by DSS and NAVAIR in order to gain access to classified information pertaining to the national defense of the United States and its allies; this will be an inherent requirement. The selected company will be required to safeguard classified material IAW DoD 5220.22-M during the advanced phases of this contract. PHASE I: Design and develop suitable technology concepts for a system consisting of a firing switch, delay element and high voltage capacitors that must survive severe shock environments. Model and/or demonstrate the concept�s ability to survive the environments. Address risks for potential future development of concepts. Use notional shock spectrum provided in the Description. Additional information regarding shock spectrum will be provided by the government to assist in the further development of the concepts. PHASE II: Manufacture a prototype based on the Phase I design, and develop new methodologies to test the newly developed hardware. Bench level testing to validate functionality of the design (such as fire capacitor charge time with min arm power voltage, fire capacitor charge time with max arm power voltage, voltage on fire capacitor, bleed down time of fire capacitor, electrical testing at ambient, -40C and 70C for the system between 24 to 34 Vdc.) should be performed before testing against a wide sweep of shock frequencies. The shock test should replicate as close as possible a notional shock response spectrum from 500 Hz to 100,000 Hz in the longitudinal, vertical and lateral directions with G levels between 4.00E+02 to 2.00E+05 and a maximum transient duration of 0.25 msec. Survivability of the hardware and functionality of the system as designed are the objectives of the testing. The hardware should remain powered through-out the shock event and function as intended. PHASE III DUAL USE APPLICATIONS: Develop a full scale representative manufacturing and quality assurance process for the survivable firing switch, delay element and high voltage capacitors. Transition and integrate the finalized system to Tomahawk weapon system programs and platforms. The system developed could potentially be used for the mining industry or oil and gas industry where multiple delayed fuzes must survive the shock produced by the effects of earlier fuzes. REFERENCES: 1. Impact, Werner Goldsmith, ISBN: 0486420043, 9780486420042 Paperback; Mineola, New York: Dover Publications, November 1, 2001 2. Stress transients in solids. John S. Rinehart. ISBN-10: 0913270482. Published 1975 by HyperDynamics in Santa Fe, N.M 3. MIL-STD-1316E. DoD Design Criteria Standard; Fuze Design, Safety Criteria for (10 Jul 1998). http://everyspec.com/MIL-STD/MIL-STD-1300-1399/MIL-STD-1316E_2510/0 4. MIL-STD-331C. DoD Test Method Standard: Fuze and Fuze Components, Environmental and Performance Tests for (22 Jun 2009) KEYWORDS: Shock Mitigation; Shock; Fuze; Electronic Safe and Arm Device; High Voltage Capacitor; Electronics TPOC-1: 760-939-4275 Questions may also be submitted through DoD SBIR/STTR SITIS website.
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