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DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NDIA’s 57th Annual Fuze Conference NAVY OVERVIEW
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
NDIA’s 57th Annual Fuze Conference
NAVY OVERVIEW
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. 2
• Navy Fuze S&T Strategy
• Navy Fuzing Future Directions
• Navy Fuze Work Highlights
• Summary
Outline
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Chief of Naval Operations ADM Jonathan Greenert
Navy Weapon Structure
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• Less of a formal Strategy, but more of a fuzing path into the
future
Smaller - We really see that fuzing is heading in the
direction of smaller is better.
− Weapons are getting smaller and smaller sizes allow for
redundancy to help reliability.
Reliability - Higher reliability is also a big player for Navy
fuzing. Sub-munitions have very high reliability
expectations and more traditional fuzing is also wanting
higher reliability.
Lower Cost - With budgets falling, the pressure is on to
make all weapons and weapons systems cost less.
Navy S&T Strategy
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Navy Future Directions
State-of-the-Art In-Line & Out-of-Line
Safe-Arm Devices
Complex Electro- Mechanical Safe-Arm Devices
Large and bulky Electro- Mechanical
Safe-Arm Devices
Miniature Munitions
Advanced MEMS and Electronic Technologies
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Navy Tech Money Sources
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How Will We Get There?
• Smaller and more reliable and robust electronics and power conditioning
technologies.
Improved reliability across all fuze applications.
• Improved detonator/initiator designs and components.
Improved IM and variable output weapons characteristics.
• Improved MEMS Technologies and producible MEMS designs.
Smaller and more robust fuzing application.
New families of contact sensors and fuzing devices
• Leverage spiral development of existing fuzes.
Improved reliability and capability.
Stop-gap to help support fuzing industry.
Demonstration beds for new technologies.
• Service life extension programs for existing fuze inventories.
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• Developing technologies to
enable electrical signal
distribution in a weapon
system with large numbers of
submunitions
• Minimize disruption to the
dispense event
• Maintain robust
mechanical and electrical
interfaces
Closed Session VB briefing
provided by Kevin Cochran
HRDR
155mm
Round
Electrical
Distribution
System
High Reliability DPICM Replacement
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• Produce calculated
reliability predictions for
MEMS based explosive
trains
• Characterize shock
initiation and material
properties of EDF-11
• Combined analysis of
(100+) test data sets to
determine a reliability of
MEMS explosive interface
Model Hot
Spots
DRIE of Si
Bridge
Closed Session IIIB briefing
provided by Dan Pines
9
Reliability of MEMS Explosive Train Interfaces (13-G-021)
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10
• Increase fuze survivability by
providing improved material
models for potting materials and
lead-free solder used in the design
process
• Potting material characterization:
• Variety of experiments to collect
data
• Populate existing material models
with constants derived from the
test data
• Validate material models for use in
HT penetration
Closed Session IIIB briefing
provided by Vasant Joshi
Characterization of Potting Materials for Electronics
Assemblies Subjected to Dynamic Loads
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Unpowered Gun Setback Detection Test
• Energy harvesting and analog
signal processing
• Measures setback magnitude
and the duration of the setback
• Board potted with production
encapsulant for correct
mechanical response
• Gun test will identify best
configuration of component
values and validate a setback
detection method
JFTP funded as 14-G-028 with internal leveraging
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-20000
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Acc
ele
rati
on
, g
Time, s
Lead-Side Down
• Do Gas Discharge Tubes self fire from high g levels?
• 40 foot drop tower to generate short duration high shock levels
• Early testing indicates self firing may be a concern
• Additional experiments required
Gas Tube Shock Survivability
JFTP funded as 14-G-022 with internal leveraging
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• Use true COTS components
• Simplify Circuitry Where Appropriate
• Component Selection is critical
• 1000 unit Quantities
Closed Session VA Briefing provided by Mr. Michael Haddon
Low Cost ESAD
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• Exploit existing MEMS micro-fabrication
and packaging technologies to obtain
higher-performance DoD retard and
impact sensors
• Improved G-sensor performance for
existing and future fuzes.
• Two efforts – Metal(LIGA) and
Silicon(DRIE)
• Small lot of both metal and silicon retard
sensors will be manufactured, tested and
submitted to fuze vendor for evaluation
via the DOTC.
MEMS Retard and Impact Sensors
Closed Session VA Briefing provided by Mr. Randy Drobny
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Summary
Smaller, More Robust, Higher Reliability and Lower Cost fuze designs are future thrusts
for future Navy Fuzing
