SHIP DECKS - Storming Media

Feasibility of Using Littoral Combat Ships (LCS) for Humanitarian Assistance/Disaster Relief (HA/DR) Operations

Sep 2012

85 pages

Authors: Fuquan Ng; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF SYSTEMS ENGINEERING

The full text of this report is available for sale.

This thesis addresses the feasibility of using Littoral Combat Ships (LCS) to conduct Humanitarian Assistance/Disaster Relief (HA/DR) operations. The thesis uses systems engineering to analyze the suite of LCS mission packages that would be used in conducting HA/DR operations. The current preference for HA/DR operations is big decks, like those found on Amphibious Ships and Aircraft Carriers, to maximize the lift capability of medical supplies, food, and water. The trade-off ...

Coupling Issues Associated with Electro-Magnetic Vulnerability (EMV) Testing of Vehicles Over Ground

Jan 2012

17 pages

Authors: T H Shumpert; M L Waller; S H Wong; R W Scharstein; REDSTONE TEST CENTER REDSTONE ARSENAL AL

Electromagnetic Vulnerability (EMV) testing of ground vehicles and helicopters is (by necessity) performed in the immediate presence of ground surfaces (natural earth, asphalt, concrete, ship decks, and other finitely conducting grounds). The impact of the nature of these grounds on the EM coupling to the various vehicles being tested is the focus of this work. As one approach to addressing these issues quantitatively, personnel at Redstone Test Center Electromagnetic Environmental ...

Perhaps Bigger is Better: Density as a Naval Submarine Cost Driver

15-May-2008

21 pages

Authors: Benjamin Grant; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Density trends may represent a previously unexplained driver of historic submarine cost growth in excess of inflation. The briefing looks at a number of factors that suggest minimizing weight is not cost saving. These include deck surface area and hull diameter influence on hydrodynamic drag along with increase in useable volume. A number of density measurements are examined.

Evaluatie Constructie Joint Support Ship (Evaluation Structure Joint Support Ship)

15-Mar-2008

153 pages

Authors: T N Bosman; TNO BUILT ENVIRONMENT AND GEOSCIENCES DELFT (NETHERLANDS)

A global strength and stiffness calculation is performed. The strength analysis shows that the structure fulfills the DNV class society rules with respect to allowable stresses. Local fatigue problems are identified. The global natural frequencies including fluid added mass are established. The minimum required natural frequency of decks is defined. A comparison of the structural weight distribution as calculated and modeled is made, showing significant differences.

Military Sealift and Expanding MAGTF Ground Mobility Procurements

19-Feb-2008

13 pages

Authors: White; Ronald Jr; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA

The Marine Corps has organized its forces into capability sets that allow for the rapid insertion and build-up of combat forces world wide. This construct is based around the smallest form of the Marine air ground task force (MAGTF), the Marine expeditionary unit (MEU), which is constantly afloat aboard the Expeditionary strike group (ESG). The MEU and the amphibious ships that make up the ESG provide a forcible entry capability ...

Development of a New Long Duration Solar Powered Autonomous Surface Vehicle

Sep-2006

7 pages

Authors: John R Higinbotham; peter G Hitchener; John R Moisan; EMERGENT SPACE TECHNOLOGIES INC GREENBELT MD

This paper introduces recent activities associated with the development of a new long duration solar powered autonomous surface vehicle (ASV) known as the Ocean Atmosphere Sensor Integration System (OASIS). A brief discussion of ASV applications, platform research and development, and challenges is presented. Platform development objectives and the relationship to resulting systems, hull and deck design, and deployment and recovery are highlighted. The paper discusses the development approach, technology, and ...

Propagation Modeling of Wireless Systems on Shipboard External Decks

SEP 2006

Authors: Luis E. Gallo; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.

Many on-board ship operations demand full radio coverage over the entire ship, not only indoor, but also from the interior spaces to the other decks. Onboard a ship, specifically in the upper decks, radio wave propagation is subjected to fading that would impede the quality and reliability of data links and communication. One example is the performance of unmanned aerial vehicle (UAV) data and communications links. The purpose of this ...

The Application of Qualification Testing, Field Testing, and Accelerated Testing for Estimating Long-Term Durability of Composite Materials for Caltrans Applications

25 FEB 2005

100 pages

Authors: G. L. Steckel; G. F. Hawkins; AEROSPACE CORP EL SEGUNDO CA

Caltrans has begun utilizing composite materials in several bridge applications, including girders and decks on new bridges, replacement decks and seismic retrofit of columns on old bridges, and for general structural reinforcement. Formal procedures for the evaluation and qualification of composite casings for seismic retrofit of bridge columns were adopted in 1995 and are being applied by Caltrans to all structural applications of composite materials. Environmental durability testing to ensure ...

Seabasing Innovation Cell `Transfer of Goods at Sea'

01-Mar-2004

216 pages

Authors: Mark Selfridge; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD TOTAL SHIP SYSTEMS DIRECTORATE

The Center for Innovation in Ship Design (CISD) at the Naval Surface Warfare Center - Carderock Division (NSWC-CD) was tasked by the Chief of Naval Research to investigate Seabasing as it relates to Seapower 21 and the United States Navy Transformation. At Carderock, a multi-disciplinary team formed in late February 2003 and reported on 30 May 2003; a period of 14 weeks. The team was led by Mark Selfridge, a ...

Fatigue Evaluation of Multiple Fiber-Reinforced Polymer Bridge Deck Systems Over Existing Girders Phase II Report

NOV 2003

27 pages

Authors: Piyush K. Dutta; Roberto Lopez-Anido; Soon-Chul Kwon; Glenn D. Durell; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB

Decks manufactured with fiber-reinforced polymer (FRP) composite materials are used in highway bridges. A performance evaluation of FRP composite decks subjected to simulated traffic loads that induce repetitive stress cycles under extremely high and low temperature is presented. Fatigue testing of three FRP composite bridge deck prototypes and one FRP-concrete hybrid bridge deck prototype under two extreme temperature conditions: -30 C (-22 F), and 50 C (122 F) was conducted. ...

Requirements for an Aircraft Carrier Flight Deck Fire Fighting Test Facility

20 FEB 2003

24 pages

Authors: Robert L. Darwin; Joseph L. Scheffey; Howard L. Bowman; Frederick W. Williams; NAVAL RESEARCH LAB WASHINGTON DC

This report outlines the requirements for a flight deck fire fighting facility. This includes mock aircraft, flush deck nozzles, AFFF delivery system, and wind machines. Environmental issues are detailed.

Prototype Early Warning Fire Detection System: Test Series 4 Results

15 FEB 2002

63 pages

Authors: Daniel T. Gottuk; Mark T. Wright; Jennifer T. Wong; Hung V. Pham; Susan L. Rose-Pehrson; NAVAL RESEARCH LAB WASHINGTON DC

This test series has demonstrated the successful operation of the early warning fire detector (EWFD) system over twelve compartments on two decks of the ex-USS Shadwell providing continuous monitoring of the spaces. The EWFD system responded to both flaming and smoldering fires while maintaining an immunity to nuisance sources. The use of multiple sensors and the Probabilistic Neural Networks alarm algorithm in the EWFD system resulted in improved performance compared ...

Identification of Weather Deck Runoff Discharge Constituents Onboard a U.S. Navy CV/CVN Class Aircraft Carrier (with) Appendix Q: Shipboard Weather Deck Runoff Information Management System - SWIMS for Multi-Purpose Aircraft Carriers CV/CVN (CD-ROM)

MAY 2001

Authors: Mary L. Wenzel; James D. Surgeon; John W. Baillargeon; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

ELECTRONIC FILE CHARACTERISTICS: 19 files; software and database; SWIMS and MS Access. PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 12.2 MB. SYSTEMS DETAIL NOTE: IBM clone PC-compatible; run "Setup.exe" to start. ABSTRACT: This report provides the results of two at-sea assessments conducted aboard the same CV/CVN class aircraft carrier. The initial assessment was conducted during a five-day underway period to observe and document topside equipment and ...

Identification of Weather Deck Runoff Discharge Constituents Onboard a U.S. Navy LHD-l Class Amphibious Assault Ship (with) Appendix N: Shipboard Weather Deck Runoff Information Management System - SWIMS for Amphibious Assault Ship LHD Wasp Class (CD-ROM)

MAY 2001

Authors: Mary L. Wenzel; James D. Surgeon; John W. Baillargeon; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

ELECTRONIC FILE CHARACTERISTICS: 18 files; software and MS Access database. PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 17.9 MB. SYSTEMS DETAIL NOTE: IBM-clone PC-compatible; run "Setup.exe" to start. ABSTRACT: This report provides the results of a six-day at-sea assessment conducted in December 1999 aboard a U.S. Navy LHD-1 class amphibious assault ship. LHD-1 class ships are 844-foot in length and manned by a crew of approximately ...

Identification of Welldeck Washout Discharge Constituents: Summary Report

MAR 2001

38 pages

Authors: Mary L. Wenzel; James D. Sugeon; John W. Bailiargeon; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

Section 325 of the 1996 National Defense Authorization Act, 'Discharges from Vessels of the Armed Forces', requires the Navy to comply with Uniform National Discharge Standards (UNDS) to control the overboard discharge of incidental wastewaters from ships of the Armed Forces. During Phase I of the UNDS initiative, it was determined that welldeck washout discharges requires a Marine Pollution Control Device (MPCD) to control the discharge. At the request of ...

Ship Superstructure Icing: Crystalline and Physical Properties

AUG 2000

42 pages

Authors: Charles C. Ryerson; Anthony J. Gow; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB

In February and March 1990, measurements were made of superstructure ice on a United States Coast Guard cutter in the Bering Sea. Ice samples were removed from bulkheads, decks, and icicles during two icing events. Ice crystal measurements included crystal size, shape, orientation, brine pocket location, size and shape, internal layering, and air bubble sizes. Ice property measurements included salinity density, and temperature, with ...

Identification of Weather Deck Runoff Discharge Constituents Onboard a U.S. Coast Guard Island Class (WPB) Patrol Boat

31 JUL 2000

92 pages

Authors: Mary L. Wenzel; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

Section 325 of the 1996 National Defense Authorization Act, "Discharges from Vessels of the Armed Forces", requires the Navy to comply with Uniform National Discharge Standards (UNDS) to control the overboard discharge of incidental wastewaters from ships of the Armed Forces. During Phase I of the UNDS initiative, it was determined weather deck runoff requires a Marine Pollution Control Device (MPCD) to control the discharge.

A Model of Dry Deck Shelter CO2 Levels

JUL 2000

37 pages

Authors: J. F. Himm; NAVAL MEDICAL RESEARCH CENTER SILVER SPRING MD

To maintain a safe environment, the partial pressure of carbon dioxide (CO2) in a closed space needs to be kept under control. In the dry deck shelter (DDS) the CO2 pressure is controlled primarily through the use of venting of each of the three modules. Air from the submarine air banks, which contain less than 1250 ppm CO2, is added to a compartment at the same time that an exhaust ...

Acceleration of a Plate Subject to Explosive Blast Loading - Trial Results

MAR 2000

Authors: Stephen D. Boyd; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION MELBOURNE (AUSTRALIA)

This paper presents the results of a trial to measure the acceleration, pressure loading and displacement of a fixed flat steel plate subjected to explosive blast loading. It is concluded that neither the Fagel formula or simple FEM simulation give accurate predictions of acceleration for a fully clamped square plate subject to a short duration explosive blast loading. The FEM predictive capability may be improved with ...

Time Accurate Computational Simulations of Ship Air Wake

2000

6 pages

Authors: Susan A. Polsky; Chris W. Bruner; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD

Time accurate computational fluid dynamics (CFD's) calculations were performed to characterize the unsteady nature of the air wake produced by a U.S. Navy LHA class ship. A series of wind-over-deck (WOD) conditions were examined. It was found that the general character of the air wake changed dramatically as the WOD angle changed. The air wake was also found to be highly unsteady or "turbulent" but also ...

A Computational Study of Unsteady Ship Wake and Vortex Flows

2000

8 pages

Authors: Susan Polsky; Christopher Bruner; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD

The superstructure, deck, and other features of large ships produce a variety of vortex flows generated by sharp edges and massively separated regions. These features are of importance for aircraft and other operations on and around these ships. The ability to predict the airwake over a ship can aid in the development of aircraft operating envelopes and can be used to "diagnose" airwake structures that cause some ...

Diagonal Hatch System for Ships

26 OCT 1999

Authors: Robert W. Michaelson; Jerome P. Sikora; DEPARTMENT OF THE NAVY WASHINGTON DC

A ship has at least one deck which is inventively latticed in a regular (e.g., repeating) geometric pattern of hatches. The hatches of each such inventive deck are shaped in standardized geometric forms and disposed in diagonally contiguous interrelationships, thereby enhancing the structural characteristics of the deck and of the ship, especially in terms of attenuation of warping, deflections and resultant stresses.

Helix Antenna

19 JUL 1999

22 pages

Authors: Michael J. Josypenko; DEPARTMENT OF THE NAVY WASHINGTON DC

A helix antenna includes a base portion for containing a feed network including a power input, a 90 degree power splitter in communication with the power inlet, and first and second 180 degree power splitters in communication with the 90 degree power splitter. A support tube is mounted on the base portion, and a plurality of disk separators are mounted on the tube. Four elongated elements are wound around the ...

Feasibility of Wireless Data Transmission on Ships

OCT 97

Authors: David S. Hosom; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA

This report will present the results of an investigation into the feasibility of several modes of wireless data transmission including: (1) radio frequency modems, (2) acoustic modems (using the ship's steel hull for a path with a 'HullPhone'), (3) power line systems, such as X-lO units, and (4) possible power line utilization of telephone modems. There is a need for wireless data transmission on both Voluntary Observing Ships (VOS) and ...

Shock Transmission, Response Calculation of a Compartment of a Frigate with Discrete Masses and Rayleigh Damping

03 JUL 97

95 pages

Authors: W. Trouwborst; CENTRE FOR MECHANICAL ENGINEERING TNO DELFT (NETHERLANDS)

This report gives results as obtained with a finite element analysis using the finite element program DIANA of a compartment of a Frigate loaded with a shock pulse based on the kick-off velocity concept. Three decks are included in the FEM model. The effects of discrete masses, either fixed at the deck or mounted at discrete springs (with and without damping), Rayleigh damping and excitation of the hull have been ...

An Experimental Investigation of the Ultimate Strength of Stiffened Panels. Volume 1: Results and Analyses

APR 97

111 pages

Authors: Gregory J. White; Robert H. Vroman; David P. Kihl; Sara E. Mourning; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

A series of multi-bay steel grillages were tested to collapse in the Grillage Test Fixture at the U.S. Naval Academy. The grillages were nominally 1/ 3-scale models of typical warship deck structures. The tests were part of a student research project investigating reliability-based design methods for stiffened panels. The six nominally identical grillage specimens were made from ordinary steel and consisted of three panels (bays) stiffened longitudinally and transversely with ...

An Experimental Investigation of the Ultimate Strength of Stiffened Panels. Volume 2: Test Data

APR 97

175 pages

Authors: Gregory J. White; Robert H. Vroman; David P. Kihl; Sara E. Mourning; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

SHIPMO7: An Updated Strip Theory Program for Predicting Ship Motions and Sea Loads in Waves

MAR 97

Authors: Kevin A. McTaggart; DEFENCE RESEARCH ESTABLISHMENT ATLANTIC DARTMOUTH (NOVA SCOTIA)

SHIPMO7 is an updated strip theory program for computing ship motions and sea loads in regular and irregular seas. SHIPMO7 includes appendage forces and viscous forces when evaluating motions and sea loads in the lateral plane. The revised program also introduces a boundary element method which eliminates irregular frequencies from computed hydrodynamic coefficients. The SHIPMO input format has been revised to improve consistency and clarity. The revised output includes improvements ...

Shock Reduction by Means of Resiliently Mounted Floors; Influence of Damping and Coinciding Eigen Frequencies (Schokreductie d.m.v. Zwevende Vloeren; Invloed Demping en Samenvallende Eigenfrequenties)

16 DEC 96

65 pages

Authors: J. VAN DEN Eikhoff; R. Regoord; CENTRE FOR MECHANICAL ENGINEERING TNO DELFT (NETHERLANDS)

The analysis concerns a simple 2D finite element model of a large resiliently mounted steel floor on a deck of a frigate subjected to the effects of UNDEX shock. For the prescribed motion at the deck edges, a kickoff pulse has been taken. The latter being obtained with the SWISS Code for an actual charge geometry. Cable wound shock mounts were installed. Shock response results were compared with those as ...

Amphibious Cargo Beaching (ACB) Lighter Development - Phase I

OCT 96

419 pages

Authors: KVAERNER MASA MARINE INC ANNAPOLIS MD

This report documents a conceptual design effort for the Amphibious Cargo Beaching (ACB) Lighter, a modular barge system which is being developed to replace the Navy Lighter (NL) pontoon causeway system. The ACB Lighter will be rapidly deployed from an auxiliary crane ship and be assembled and operated in sea conditions through sea state three to support Joint Logistics Over the Shore (JLOTS) operations. Results are presented for three major ...

Shock Reduction By Means of Resiliently Mounted Floors: UNP Beams of Steel (Schokreductie D.M.V. Zwevende Vloeren: Stalen UNP Profielen)

18 JUL 96

31 pages

Authors: R. Regoord; CENTRE FOR MECHANICAL ENGINEERING TNO DELFT (NETHERLANDS)

Experimental Modal Analysis of a Sandwich Construction, Glass Reinforced Plastic Composite Deck Panel

JUL 1996

72 pages

Authors: Colin P. Ratcliffe; NAVAL ACADEMY ANNAPOLIS MD DIV OF ENGINEERING AND WEAPONS

This report details the experimental modal analysis of a 20-ft by 6- ft sandwich construction glass reinforced plastic panel. The panel includes four compliant foundations, which are designed to be equipment supports. The analysis reveals that below the fundamental resonance of the foundations, the structure behaves in a similar fashion to a uniform plate. The foundations do not show appreciable vibration. Above the fundamental of the straps, there is significant ...

Improved Boundary Element Methods for Predicting Sectional Hydrodynamic Coefficients for Strip Theory Ship Motion Programs

MAR 96

Authors: Kevin A. McTaggart; DEFENCE RESEARCH ESTABLISHMENT ATLANTIC DARTMOUTH (NOVA SCOTIA)

This technical memorandum presents two improved boundary element methods for predicting hydrodynamic coefficients of two dimensional sections. The first method is a source distribution method, while the second is a direct method for determining velocity potential. A major objective of these improved methods is to eliminate errors due to irregular frequencies, which currently exist in the close-fit method used by the strip theory program SHIPMO. Both new methods successfully eliminate ...

Characterization of Stiffening and Damping Materials for Planing Boat Shock Mitigation

JAN 96

23 pages

Authors: R. S. Peterson; COASTAL SYSTEMS STATION PANAMA CITY FL

The occupants of high-speed planing boats operating in heavy seas are subject to repeated shock loads that can injure or impair performance. Identification and evaluation of shock mitigation concepts requires development of a nonlinear, time-domain, wave-to-wave elastic planing boat/human dynamic simulation. Shock mitigation concepts include the use of various stiffening and damping materials in the cockpit or within the hull structure. This report summarizes a general method for characterizing stiffening ...

Bonded Repairs to RAN FFG Superstructure-Strain Gauge Data Analysis

JUN 95

Authors: B. P. Phelps; DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

Two adhesively bonded carbon fibre patches have been applied to the upper deck of HMAS SYDNEY, an FFG7 Class Frigate, to determine their effectiveness in overcoming fatigue cracking problems in the aluminium superstructure. Strain measurement trials were conducted before and after the patch application to determine their effect on stress levels in the superstructure. An analysis procedure based upon the relative normalised RMS strain value is proposed and validated, and ...

Lifting and Tiedown of US Military Helicopters

JAN 95

126 pages

Authors: John T. Germanos; G. P. Raiford; Gus G. Zakhem; MILITARY TRAFFIC MANAGEMENT COMMAND TRANSPORTATION ENGINEERING AGENCY NEWPORT NEWS VA

National Oceanographic Fleet Platform Characteristics. Navy. UNOLS. NOAA. University. USCG. Federal

JAN 95

236 pages

Authors: NAVAL OCEANOGRAPHIC OFFICE STENNIS SPACE CENTER MS

This publication provides the national oceanographic fleet platform characteristics as of 1995. The data were derived from the latest inputs from the vessel operators.

Aircraft Command in Emergency Situations Prototype Development Users Manual

JUN 94

78 pages

Authors: Gregory E. Grimstad; BOEING COMMERCIAL AIRPLANE CO SEATTLE WA

This project involved assembly of the hardware and development of the software identified in ACES Phase 1 Concept Development contract study. The assembled system allows three critical stages in responding to an aircraft inflight smoke/fire event to to be examined. These stages are (1) sensing (data gathering), (2) establishing the alerting criteria to maintain quick response while reducing false alarms (data analysis), and (3) methods of providing assistance to the ...

Experimental Investigation into the Dynamic Response of Two DOF Tuned Deck Simulator for Shock Qualification of Shipboard Systems

JUN 94

94 pages

Authors: Timothy V. Flynn III; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

The explosive shock created by the underwater explosion of a mine or torpedo in close proximity to a surface ship can severely threaten the combat capability and survivability of the ship. MEL-S-901D specifics the shock test procedures and acceptance criteria for all shipboard systems that must resist high impact mechanical shock. While the U.S. Navy's Medium-weight Shock Machine with its standard equipment mounting fixture can subject a combat systems component ...

The Operational Reserve Carrier: A Timeshare Co-Operative Opportunity for Marine TACAIR and the Naval Reserve Carrier Air Wing

16 MAY 94

31 pages

Authors: Thomas F. Nagelin Jr; NAVAL WAR COLL NEWPORT RI

At H-hour on D-day, when it is time for the 'grunts' to 'kick in the door' with an amphibious assault, USMC Tactical Aviation (TacAir) must be in position, ready to counter enemy air and provide Close Air Support (CAS). While the Corps TacAir awaits the securing of a Naval Expeditionary Air Field (NEAF) or other such battlefield-proximate airfield ashore, they must in the interim, have an effective base from which ...

A Preliminary Study of the Airwake Model Used in an Existing SH-60B/FFG- 7 Helicopter/Ship Simulation Program

MAY 94

Authors: Lincoln P. Erm; DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

The ship airwake model in a SH-60B/FFG-7 helicopter/ship simulation program is studied in detail. The airwake model is based on wind tunnel measurements obtained for another ship type, with geometric scaling applied to make it suitable for an FFG-7 frigate. Velocities over the flight deck of an FFG-7, predicted using the program, are compared with those obtained from full- scale tests on HMAS Darwin. Differences between predicted and measured velocities ...

Development of Interim Chemical Protective Overgarment (ICPO)

APR 94

105 pages

Authors: M. Roy; NAVY CLOTHING AND TEXTILE RESEARCH FACILITY NATICK MA

The Navy Clothing and Textile Research Facility was tasked by the Naval Sea Systems Command to develop an interim chemical protective overgarment (ICPO). When compared to the current chemical protective overgarment (CPO), the ICPO development was to improved fire protection; improved chemical agent protection with increased and storage life; increased tolerance time, working in hot-humid environments; and improved compatibility with chemical defense (CD) and flight deck (ED) individual protective equipment ...

Prediction of Deck Wetness on Ships in Motion Through Waves at Finite Forward Speed by Means of a Nonlinear Version of the Slender Ship Theory

31 MAR 94

47 pages

Authors: James Fein; CALIFORNIA UNIV SANTA BARBARA

Post-Flashover Fires in Shipboard Compartments Aboard Ex-USS SHADWELL. Phase 6. Boundary and Compartment Cooling

28 MAR 94

175 pages

Authors: J. L. Scheffey; T. A. Tommey; R. L. Darwin; F. W. Williams; NAVAL RESEARCH LAB WASHINGTON DC

Boundary and compartment cooling tests were conducted on the NRL fire research vessel, ex-USS SHADWELL. These tests were part of a series of tests under the Internal Ship Conflagration Control project. A dock assembly was exposed to a post-flashover fire exposure for 20 minutes. After this exposure, the deck was cooled using manual firefighting equipment. This equipment included standard Navy firefighting nozzles (variable steam and all purpose), a small diameter ...

Hi Fi Audio Tape to Sun Workstation Transfer System for Digital Audio Data

MAR 94

132 pages

Authors: Arie G. Gartenlaub; NAVAL POSTGRADUATE SCHOOL MONTEREY CA

This thesis describes a subsystem developed to provide for the transfer of digital audio signals from a SUN SPARCstation 10 workstation to a digital audio tape (DAT) and vice versa. The new system expands the audio recording/reproduction options available in the laboratory by integrating an analog tape deck and a digital tape deck with the SUN workstation. The desired connection enables working with a larger audio bandwidth to achieve better ...

Enhanced Palletized Flatrack (EPF) Transportability Testing on the Palletized Loading System (PLS) Truck/Trailer

MAR 94

350 pages

Authors: A. C. McIntosh Jr; ARMY DEFENSE AMMUNITION CENTER AND SCHOOL SAVANNA IL

The U.S. Army Defense Ammunition Center and School (USADACS), Validation Engineering Division (SMCAC-DEV), was tasked by the U.S. Army Tank- Automotive Command, Program Manager for Heavy Tactical Vehicles (SFAE-CS-TVH), to test the Enhanced Palletized Flatrack (EPF) on the Palletized Loading System (PLS) with ammunition loads for compliance with Transportability Testing Procedures, TP-91-01, July 1991. Testing included Container-on-flatcar (COFC), Trailer-on-flatcar (TOFC), loaded PLS truck with EPF cabled on a flatcar, loaded ...

Traction Characteristics of Chemical Agent Protective Footwear Soleing Materials

JAN 94

49 pages

Authors: Robert Hall; NAVY CLOTHING AND TEXTILE RESEARCH FACILITY NATICK MA

The Static Coefficient of Friction (SCF) values were determined for several footwear soleing materials on different walkway surfaces, and for different surface conditions, to establish which soleing materials provided the best traction performance for shipboard application. The soleing materials evaluated included a standard Navy safety boot with nitrile rubber sole, a Vibram nitrile commercial sole, the Army's prototype nitrile/ neoprene multipurpose overboot (MULO) and vinyl overshoe, and three butyl chemical ...

1993 Fleet Doctrine Evaluation Workshop: Phase 1. Class A Fire/Vertical Attack

30 DEC 93

261 pages

Authors: F. W. Williams; J. L. Scheffey; J. T. Wong; T. A. Toomey; J. P. Farley; NAVAL RESEARCH LAB WASHINGTON DC

A series of firefighting tests were conducted to develop and refine firefighting doctrine for vertical attack of a Class A fire in a below-decks, limited access space. Key findings in this test series included using an access team to gain entry to the space and monitoring pressure build-up when indirect firefighting is used. Cool vests provided a significant improvement in the reduction of heat stress. Too much communication, particularly between ...

Simulation of Complex Balloon Liftoff

28 DEC 1993

6 pages

Authors: George Y. Jumper; Jeffrey A. Blank; James F. Dwyer; PHILLIPS LAB HANSCOM AFB MA

The SDIO High Altitude Balloon Experiment (HABE) requires the launch of a large balloon from the deck of a ship, in moderate sea and wind conditions. In order to insure that the balloon would clear the obstacles on the deck in the required conditions, the liftoff was simulated using a modern continuous simulation applications software package. The system was modeled as two lumped masses (the balloon and the payload) connected ...

Shield Ground Adapter for Kickpipes and Stuffing Tubes.

17 AUG 1993

Authors: Michael Obara; DEPARTMENT OF THE NAVY WASHINGTON DC

A shielded cable passes through a kickpipe in a structural plate member, such as the deck of a ship. The kickpipe has a necked-down portion designed to receive the cable at a point where the cable shielding has been exposed. Axially compressible radially expandable iris, or toroidal, springs are engaged by an adapter nut threadably received inside the kickpipe to create a low impedance ground connection from the cable shielding ...