TITLE: Surface Ship Fat
Line Towed Array Cut-Resistant Vibration Isolation Module (VIM) Hose
Battlespace, Electronics, Sensors
ACQUISITION PROGRAM: PEO IWS
5.0, Multi-Function Towed Array
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 Announcement. 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: Develop a
cut-resistant hose for surface ship fat line vibration isolation module (VIM)
that retains existing VIM hose properties.
DESCRIPTION: A surface ship
towed array VIM hose that is resistant to cuts, abrasions, perforation, and
other mechanical damage is needed by the Navy. The surface ship fat line VIM is
a fluid filled hose that reduces the low frequency vibrations experienced by
towed array sensors by attenuating the vibration through the VIM and especially
through the hose wall. However, the soft hose material used in current VIM
hoses is susceptible to cuts from floating materials such as fishing lines. A
cut-resistant towed array VIM hose would increase the availability of existing
surface ship towed arrays and reduce lifecycle costs. Reducing or eliminating
this failure mode would improve surface ship towed array availability by as
much as 25%, with a corresponding reduction to lifecycle costs (repair,
sparing, time off station). Current commercial hose solutions, such as
hydraulic, pneumatic, and fire, do not meet the needed performance to alleviate
this costly failure problem because the materials and constructions developed
for those hose types do not address the damping (attenuation) and other
environmental unique requirements of a towed array hose.
The Navy seeks innovative approaches to providing vibration isolation to TB37
surface ship towed arrays, while reducing or eliminating susceptibility to
cutting or puncturing hazards often experienced during towing, deployment, and
retrieval operations. Successful solutions would meet all current VIM
requirements related to passing data (6 optical single mode fiber data paths at
~ 100 Mbps) and power (500 Vdc, 2.5 A) and attenuating low frequency mechanical
vibrations by ~ 20 dB.
The proposed solution must also meet all form-factor and environmental
requirements (MIL STD 810G) such as array diameter (3.5 inches), working
tensions up to 5000 pounds, compatibility with towing at sea for a five-year
period, and prevent seawater from migrating from the exterior to the interior
of the hose over the five-year life. The solution should either improve the hose
resistance to cuts, abrasions, and punctures; or otherwise eliminate the
consequences of said damage to the structural integrity of the primary seawater
seal by sealing the cut or tear. Cut resistance will be evaluated using ASTM
F2992-15 (information available online) or an equivalent test developed by the
Government. Any solution for sealing will be evaluated using environmental
testing (temperature and pressure IAW MIL-STD-810Gand under tow with a full
array system). Water intrusion will be evaluated using the insulation
resistance between the wires in the VIM.
The Phase II effort will likely require secure access, and NAVSEA will process
the DD254 to support the contractor for personnel and facility certification
for secure access. The Phase I effort will not require access to classified
information. If need be, data of the same level of complexity as secured data
will be provided to support Phase I work.
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 contract as set forth by DSS and NAVSEA 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 advance phases of this contract.
PHASE I: Develop a concept to
address the key design elements of the cut-resistant VIM hose. The approach
will show it is feasible for meeting current VIM hose standards as described in
the description. Feasibility will be demonstrated by analysis and modeling of
key elements. The Phase I Option, if awarded, will include the initial design
specifications and capabilities description to build a prototype in Phase II.
Develop a Phase II plan.
PHASE II: Based on the
results of Phase I modeling and the Phase II Statement of Work (SOW), design,
develop, and deliver a prototype cut-resistant VIM hose that demonstrates
resistance to damage based on the requirements listed in the Description. The
demonstration will take place at a Government- or company-provided facility.
The Navy will also conduct its own independent functionality and environmental
testing of the prototype, which requires delivery to the Government of one VIM
hose example for testing. Prepare a Phase III development plan to transition the
technology for Navy production and potential commercial use.
It is probable that the work under this effort will be classified under Phase
II (see Description section for details).
PHASE III DUAL USE
APPLICATIONS: Assist the Government in transitioning the fully functional,
cut-resistant VIM hose to allow for further experimentation and refinement, and
finally to Navy use. Support installation of the VIM hose in a TB37 surface
ship fat-line towed array and provide assistance during laboratory and shipboard
A cut-resistant towed array hose would be of great interest to the seismic oil
exploration industry. Increasing the reliability/availability of towed systems
in high-clutter areas, such as commercial fishing areas, would reduce costs for
these companies by lowering their required spares and increasing the useful
life of their existing arrays.
1. Lemon, S. G.
"Towed-Array History, 1917-2003." IEEE Journal of Oceanic
Engineering, Vol. 29, No. 2, April 2004, pages 365-373. http://ieeexplore.ieee.org/abstract/document/1315726/
2. Urick, R. J. “Principles
of Underwater Sound for Engineers.” New York: McGraw-Hill Book Company, 1967. https://www.amazon.com/principles-underwater-sound-robert-urick/dp/0932146627
3. Burdic, William S.
“Underwater Acoustic System Analysis.” New Jersey: Prentice-Hall, Inc., 1991. https://www.amazon.com/underwater-acoustic-system-analysis-william/dp/0932146635
KEYWORDS: TB-37; Vibration
Isolation Module (VIM); VIM Hose; Acoustic Self-noise; Low Frequency Mechanical
Vibrations; Towed Array Sensors
** TOPIC NOTICE **
These Navy Topics are part of the overall DoD 2018.1 SBIR BAA. The DoD issued its 2018.1 BAA SBIR pre-release on November 29, 2017, which opens to receive proposals on January 8, 2018, and closes February 7, 2018 at 8:00 PM ET.
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