| Preliminary Military Specification for Molded Elastomeric Boot Sonar Transducer Head Mass. |
18 OCT 1968 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
 | The development program on elastomeric boots and transformer encapsulants for transducers of surface vessel and submarine sonar systems, is continuing at the Naval Applied Science Laboratory (NASL). This report deals specifically with the development of a preliminary specification for an elastomeric boot which can be molded to the head mass of a sonar transducer. |
|
| Investigation of Thermal Capabilities and Crystal Structure of Diallyl Phthlate Molding Compounds. |
27 AUG 68 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The rate of crystal growth of diallyl orthophthalate material, as a function of temperature was determined. A study was also made to distinguish between the diallyl ortho and the isophthlate crystals. The studies are part of an investigation to reduce contaminant inhibitors which reduce crystal growth and raise their sublimation temperature. Purer crystals have more useful electrical insulation applications. (LS). |
|
| A REVIEW OF BARNACLE PHOTOSENSITIVITY AND ITS POSSIBLE USE FOR MARINE FOULING CONTROL. |
16 AUG 1968 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The overall objective of the antifouling program is to develop and evaluate new antifouling materials and to investigate alternative methods that will provide naval vehicles and installations with more effective antifouling protection. The objective of this report is to observe the effects upon fouling of visible light and to determine whether this parameter can be used to prevent or control fouling by acorn barnacles. |
|
| INVESTIGATION OF PLATINGS OF ELECTRICAL CONTACTS. |
08 APR 1968 |
39 pages |
| Authors:
Albert Glowasky; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
 | Deterioration of noble metal plated electric contacts by marine atmospheres has been determined in the interests of improving reliability and conserving precious metals. EIA, P-5.1 Committee Research Laboratories with this Laboratory investigated effects of marine and laboratory salt spray atmospheres on plated contacts to determine optimum platings. Work described includes establishment of experimental techniques, equipment development, marine exposure site at Ft. Tilden, N.Y., laboratory salt spray environment and procedures. Results ... |
|
| Sonar Dome Coatings Developed Under Navy Contract with New York University. |
29 MAR 1968 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
|
| FUEL ARRAY SURVEY OF DETROIT, MICHIGAN. |
29 MAR 1968 |
|
| Authors:
J. Bracciaventi; S. Feldman; R. Newman; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A survey of Detroit, Michigan was made to determine the types and distribution of tinder and kindling fuel arrays present in urban areas which can be ignited by thermal radiation from nuclear detonations. Data on urban characteristics which would effect the start and growth of radiation induced fires was also gathered. A total of 275 sites, distributed among 10 residential and 6 non-residential use classes was surveyed. (Author) |
|
| A NUMERICAL TECHNIQUE TO DETERMINE THE THERMAL HISTORIES OF TWO-DIMENSIONAL SOLIDS IN THE NUCLEAR ENVIRONMENT. |
02 JAN 1968 |
|
| Authors:
M. L. Cohen; J. E. Koch; R. J. Heilferty; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The mathematical techniques necessary to evaluate the transient temperature distribution and histories in two-dimensional solids subject to a time varying radiant flux have been developed. In particular the finite difference form of the equations to be utilized in evaluating the thermal histories in solids of both rectangular and circular cross-sections are presented. The analyses allow for an arbitrary time dependent radiant flux to impinge upon the solids under investigation, and ... |
|
| Glossary of Radiometric and Photometric Concepts Used in Retinal Burn and Flashblindness Research (Definitions, Symbols and Units) |
23 DEC 1967 |
18 pages |
| Authors:
W. Derksen; N. Griff; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Radiometric and photometric concepts, symbols, units and definitions which are employed by the Naval Applied Science Laboratory in its retinal burn and flashblindness research are given. |
|
| PROPOSED SPECIFICATION RF HIGH VOLTAGE INSULATOR LINK FOR CRANES FILAMENT WOUND PLASTIC. |
17 OCT 1967 |
|
| Authors:
August C. Clark; Charles Christianson; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The Naval Applied Science Laboratory has developed a military specification for the fabrication and electrical and mechanical evaluation of an RF high voltage insulator link for cranes. Low electrical capacitance, high tensile strength and fail-safe features are obtained by using two bands of pre-impregnated epoxy-fiberglass roving wound on two zinc-coated steel saddles. Drawings and procedures for the fabrication and testing of 15, 30 and 50 ton links are included. (Author) ... |
|
| FUEL ARRAY SURVEY OF PROVIDENCE, RHODE ISLAND. |
21 SEP 1967 |
|
| Authors:
J. Bracciaventi; S. Feldman; R. Newman; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A survey of Providence, Rhode Island, has been made to determine the types and distribution of tinder and kindling fuel arrays present in urban areas which can be ignited by thermal radiation from nuclear detonations. The survey also gathered information on urban characteristics which affect the probability that the fuel materials will be exposed. The parameters include the distribution of window screens, window shades and blinds, and the heights and ... |
|
| EFFECTS OF CHEMICAL COMPOSITION AND HEAT TREATMENT ON THE SEA WATER CORROSION RESISTANCE OF CAST MODIFIED NICKEL-ALUMINUM BRONZE. |
21 AUG 1967 |
27 pages |
| Authors:
Charles A. Zanis; Michael L. Foster; Joseph R. Crisci; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Flowing sea water corrosion tests were conducted on four cast modified nickel-aluminum bronzes in order to determine the effects of variation in alloy composition and heat treatment on pitting corrosion tendencies. It was found that the aluminum and iron contents controlled the pitting corrosion resistance of these alloys. A proper balance of the major alloying elements appeared necessary to insure adequate corrosion resistance. Heat treatment at 1300 F and 1400 ... |
|
| VULNERABILITY OF OPTICAL SYSTEMS TO THE THERMAL RADIATION FROM NUCLEAR WEAPONS DETONATED IN THE LOWER ATMOSPHERE: A QUANTITATIVE APPROACH. |
18 AUG 1967 |
|
| Authors:
Neil Griff; Martin J. Kelly; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A quantitative method of determining the vulnerability of optical systems to high levels of thermal radiation energy from nuclear weapons is developed. The scale employed is the volume of space in which detonation of the weapon would disable the system by imaging of the fireball on the sensor. System parameters which are considered as affecting vulnerability are angle of aperture, optical gain, transmission of the optics, and the radiant exposure ... |
|
| DEALUMINIZATION OF CAST ALUMINUM BRONZES. |
05 JUL 1967 |
39 pages |
| Authors:
Michael L. Foster; Charles A. Zanis; Joseph R. Crisci; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Effects of microstructure, heat treatment and welding on the corrosion (dealuminization) resistance of cast aluminum bronzes (MIL-B-16033) after six months and one year exposure to flowing sea water are described. Results show that the bronzes are both composition and structure sensitive to corrosion attack. Heat treatment either eliminates or minimizes dealuminization attack; however, welding nullifies any advantages derived from heat treatment. Post-weld treatment can restore corrosion resistance provided proper filler ... |
|
| GAS CHROMATOGRAPHIC DETECTION OF SILOXANE VAPORS FROM INSULATING MATERIALS. |
10 MAY 1967 |
|
| Authors:
Ranier J. Katzenstein; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A round robin experimental program was conducted to establish the applicability, accuracy, and reliability of the NASL gas chromatographic method for detecting volatile siloxane vapors which are evolved from dimethylsiloxane type insulating materials maintained at elevated temperatures for extended periods. Studies were conducted with commercially prepared siloxane-free test specimens which were contaminated in bulk and on surface with dimethylsiloxane type polymers. Results of the gas chromatographic studies, which are capable ... |
|
| Flaw Detection by Ultrasonics, |
17 APR 67 |
|
| Authors:
A. Macander; I. Resnick; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| As part of a program to develop and investigate syntactic foam buoyancy materials for deep ocean search, rescue vehicles and other deep submergence applications, effort was directed toward the development of nondestructive test methods using ultrasonic and other techniques for quality assurance of syntactic foam materials. This report discusses flaw detection of a syntactic foam block using ultrasonic through-transmission. (Author, modified). |
|
| Conformal/Planar Array Sonar Project (Dependability Assurance Program). Microelectronics Failure Rate Analysis. |
12 APR 1967 |
|
| Authors:
E. V. Oliveros; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A realistic failure rate governing the use of micro circuit devices in the ESS installation and prototype system of the Conformal/Planar Array Sonar is developed. It is shown that a serious discrepancy exists between failure rate data generated by producers and user agencies. Procedures for R and M assurance are recommended. (Author) |
|
| A REPORT ON THE INVESTIGATION OF FIRE-STARTS DUE TO NUCLEAR DETONATIONS. |
03 APR 1967 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The requirements for developing a model for predicting fire-starts in urban areas due to nuclear detonations are discussed. The design of an urban fuel array survey is described and the data requirements are outlined. Some results of a survey of Providence, R. I. are presented in the form of area and building geometries and fuel distributions, and the adaptation of these data to a fire-start model are described. The data ... |
|
| Fatigue Life of IWRC Wire Rope. |
09 MAR 1967 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The object of the evaluation was to determine the fatigue life of a 1 1/4 inch diameter 6 x 19 IWRC wire rope when subjected to repeated cycles of operation over a 50 inch pitch diameter sheave while under a tensile load of 12,000 pounds. This wire rope was to be subjected to test until either 3 million cycles of operation had been completed, or until failure of the wire ... |
|
| BIBLIOGRAPHY AND INDEX OF NAVAL APPLIED SCIENCE LABORATORY TECHNICAL REPORTS ON HIGH STRENGTH STEELS |
14 FEB 1967 |
66 pages |
| Authors:
F. Ginsberg; I. L. Stern; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A bibliography and subject index was prepared of Naval Applied Science Laboratory technical reports covering pertinent information on 80,000 psi to 210,000 psi yield strength steels, with emphasis on HY-80 and HY-130 weldments. Work in these reports deals with transfer of basic laboratory data to production applications. Primary areas of concern are weldability, welding procedures and materials, static and dynamic mechanical properties (including large scale fatigue), explosion bulge, forming, stress ... |
|
| Improved Protective Coating for Sonar Domes. |
15 NOV 1966 |
|
| Authors:
N. J. Petito; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| This technical memorandum concerns the sonar dome anti-corrosion coating system designated NASL No. 22F, which has been found to have high resistance to the cavitation attack which occurs in a sonic pulse field. Information provided herein deals specifically with a description of the coating system and detailed instructions for its application. |
|
| Development of Inspection Procedures and Replacement Criteria for AN/SQA-10 VDS Towcables. |
19 SEP 1966 |
|
| Authors:
J. Macco; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| An investigation was conducted on corroded AN/SQA-10 VDS towcables to obtain information for determining the adequacy of the Naval Applied Science Laboratory developed monthly towcable inspection procedures replacement criteria, which are currently being used in the Fleet. The results obtained indicate that corrosion is a maximum at the towpoint and descreases with distance from the towpoint, and that for cables with up to two years of service the deleterious effects ... |
|
| Report on Survey of Methods for Determining the Damping and the Acoustic Properties of Sonar Dome Materials. |
16 SEP 1966 |
|
| Authors:
A. N. Savacchio; A. D. Stuart; G. Gerstel; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Materials intended for use in sonar domes are normally evaluated for damping and acoustic properties. For example, the sonar dome shell material is evaluated for damping properties; the acoustic 'window' material for transmission loss; and the baffles for both anechoic and decoupling properties. Because these properties are important factors in efficient sonar performance, it is essential that the activities developing sonar dome materials have available, reliable, meaningful methods for their ... |
|
| Determination of Reliability of Epoxy Potting Compound and Eutectic Metal for Terminating the Armor Wire of Variable Depth Sonar Towline Systems |
14 JUL 1966 |
23 pages |
| Authors:
W. Colletti; J. Macco; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Mechanical methods currently in use for terminating the armor wire of Variable Depth Sonar (VDS) towcables have proven unreliable. NASL undertook the development of a poured socket as a means of effecting a more suitable termination. As part of this work, NASL developed a rigid epoxy compound, designated NASL-E-4, consisting of an epoxy resin, a curing agent and a filler material in sufficient amounts to inhibit cracking due to the ... |
|
| IMAGE FURNACE FOR LOW YIELD NUCLEAR WEAPONS EFFECTS SIMULATION. |
14 JUL 1966 |
|
| Authors:
N. Griff; R. J. Heilferty; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The capability of the Naval Applied Science Laboratory for direct simulation of thermal effects due to nuclear weapons has been extended to low yield devices (as small as 10 kt) by the installation of a high performance servo-driven shutter in a carbon arc imaging furnace. The system can simulate thermal pulses from weapons with yields of from 10 kt to those from the largest known devices. It can deliver a ... |
|
| Fairing Support Rings for AN/SQA-10 Variable Depth Sonar Towcables. |
19 MAY 1966 |
|
| Authors:
C. Francy; S. A. Eller; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The U.S. Naval Applied Science Laboratory has developed a fairing support ring for AN/SQA-10 Variable Depth Sonar (VDS) towcables. These fairing support rings are suitable for use with either sectional plastic fairing or rubber fairing in discrete lengths. The NASL fairing support ring is expected to assist in decreasing towline kiting associated with presently used AN/SQA-10 towlines by limiting the transfer of drag forces between fairing sections. Arrangements to install ... |
|
| CORROSION AT 4500 FOOT DEPTH IN TONGUE-OF-THE-OCEAN, |
25 MAR 1966 |
13 pages |
| Authors:
E. Fischer; S. Finger; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The Navy is increasingly involved with the corrosion and deterioration of materials to be used in the exploration of and operation in the deep ocean. A significant part of the corrosion and deterioration can be attributed to the action of microorganisms in the environment. The Naval Applied Science Laboratory has conducted exposures of a variety of metals (and organic materials) in the Tongue-of-the-Ocean at 4500-foot depth. These exposures served a ... |
|
| Fatigue Properties of High Strength Reinforced Plastic Laminates. |
02 FEB 1966 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The objective of the work covered by this report was to obtain low cycle fatigue data on a thick high strength glass reinforced plastic laminate under cyclical compression loading with the view of developing procedures for collecting data for a modified Goodman diagram. Conclusions: Available facilities and procedures are suitable for determining low cycle S-N diagrams for thick high strength glass reinforced laminates under various ranges of stress. A modified ... |
|
| Fatigue properties of high strength reinforced plastic laminates. |
FEB 66 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Efforts to obtain low cycle fatigue data on a thick high strength glass reinforced plastic laminate under cyclical compression loading are reported. The material used in these tests was 1 inch thick, glass reinforced, plastic sheet fabricated from S994, HTS finish glass with a 2 x 1 layup. It appears that the most consistent criterion for failure for low cycle fatigue of specimens under compression loading is complete collapse. (PD). ... |
|
| POSITIVE PLATE SULFATION CHARACTERISTICS OF THE LEAD-CALCIUM GRID BATTERY. |
29 DEC 1965 |
|
| Authors:
S. Tudor; A. Weisstuch; S. H. Davang; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Sulfation patterns in charged positives of thick and thin-plate lead-calcium grid cells, with and without H3PO4 additive, were determined autoradiographically. A mechanism is proposed to explain capacity maintenance behavior of these cells. Thickness and density of positive active material was more important for capacity maintenance than grid thickness or surface area. Improved thin-plate lead-calcium grid cells were developed utilizing: (1) H3PO4 incorporated in the positive paste mix for extended service ... |
|
| INVESTIGATION OF THE EFFECTS OF FORMING ON THE STRUCTURAL PERFORMANCE OF COLD-FORMED HY-100 EXTRUDED STEEL TEE-BARS. |
14 OCT 1965 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The effect of cold forming and subsequent thermal stress-relief upon the structural performance of HY-100 extruded steel tee-section curved beams has been investigated. The additional effect of welding on the performance of similar structural members has also been studied. (Author) |
|
| Investigation of Thermal Endurance and Temperature Classification of SR155 Silicone Electrical Insulating Varnish, |
17 SEP 1965 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| As part of thermal endurance and temperature classification studies being conducted on several types of dielectrics (including varnishes, pressure-sensitive tapes, embedding compounds, films, coated sleeving and composite dielectrics), a program was conducted to determine the thermal endurance and temperature classification of G.E. Silicone SR-155 varnish. Results are presented. (Author, modified). |
|
| CRACK GROWTH PROPERTIES OF WELDS IN HY-80, HY-100 AND HY-130/150 HIGH STRENGTH STEELS IN A SEA WATER ENVIRONMENT |
16 SEP 1965 |
20 pages |
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Initial experiments have been conducted on welded high strength steel plate type specimens subjected to the corrosive effects of sea water under cyclical and static loading. Butt welds in 1 inch thick HY-80 and HY-130/150 steel plates and a mechanically peened tee fillet weld in 1-1/2 inch HY-100 steel plate have shown high resistance to crack propagation under stress corrosion conditions. |
|
| FATIGUE OF STRUCTURAL ELEMENTS DEVELOPMENT OF THEORY AND MEASUREMENT OF RESIDUAL STRESSES AT TEE FILLET WELDS IN 1-1/2 INCH HY-80 STEEL |
13 SEP 1965 |
73 pages |
| Authors:
H. V. Cordiano; W. Werchniak; B. S. Silverman; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A theory has been developed for the calculation of relaxation strains when a hole is drilled into a plate with a linearly varying stress field. With this theory a technique was developed for the measurement of residual stresses at the toe of tee fillet welds. The above technique was employed for the measurement of residual stresses at the toe of tee fillets in 1 1/2 in. HY-80 steel with the ... |
|
| Polaris FBM Program Navigation Subsystem MK 2 MOD 3 SINS, System 2305; Performance Characteristics with G7B GYROS Under Forced Vibration |
SEP 1965 |
25 pages |
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The U.S. Naval Applied Science Laboratory is presently investigating the operational and structural vibration characteristics of the MK 2 MOD 3 SINS binnacle and stable platform assembly. This report details the forced vibration exploratory and performance runs using Autonetics G7B gyros in the system. |
|
| Reinforced Plastics for Deep Submergence Hull Structures. |
20 AUG 65 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The objective of this investigation is to determine the response of filament wound materials to extended static stress, both in the dry state and under water exposure, as a function of type of stress (compressive and interlaminar shear) and material constructional variables. This memorandum presents initial results of interlaminar shear stress-rupture studies. The material used was a 2:1 orthogonal laminate, 1/4 inch thick, fabricated with fiberglass S roving preimpregnated with ... |
|
| Fatigue Properties of High Strength Reinforced Plastic Laminates. |
28 JUN 1965 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A 300,000 pound axial loading fatigue machine specifically designed and constructed for use in Laboratory investigations of large scale specimens of reinforced plastic materials was used in preliminary tests of thick glass reinforced epoxy sheet fabricated from an 801 finish E glass with Scotchply 1009-20. The high strength materials being tested are to be used for deep submergence structures and applications. (LS). |
|
| INVESTIGATION OF THE EFFECT OF STRESS RELIEVING ON THE TOUGHNESS (CHARPY V), AND MECHANICAL PROPERTIES OF HY 100 STEEL TEE BEAMS HOT ROLLED, EXTRUDED AND COLD FORMED. |
28 JUN 1965 |
10 pages |
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| An investigation of the effects of stress-relieving HY 100 hot rolled and extruded steel tee sections is being conducted. This report deals with the apparent detrimental effects on the toughness characteristics resulting from stress-relieving, as evaluated by Charpy V-notch properties. Yield strength characteristics were also investigated. |
|
| Reinforced Plastics for Deep Submergence Hull Structures. |
15 JUN 65 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The effects of extended exposure to water at various hydrostatic pressures on fiberglass filament wound materials were studied. An operating depth of 30,000 feet (13,300 psig) was selected in order to obtain information for exposure under the most severe conditions possible. Preliminary results for interlaminar shear, compression strength and modulus, and shear strength retention are presented for deep submergence hull structures based on fiberglass S/epoxy 58 68R material. (LS). |
|
| DEVELOPMENT OF RAD HAZ SUIT AND RF MEASURING TECHNIQUES |
27 MAY 1965 |
38 pages |
| Authors:
A. Rutkowski; C. Christianson; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The hazardous RF environmental areas on ships and at shore installations have development of protective devices for personnel. In the process of producing a prototype RAD HAZ suit, low and high power rf facilities, measurement procedured, and new techniques for conductivity measurements and insertion loss calculations were developed. The latter enabled attenuation measurements to be made in the near field of receiving antennas. The silverized nylon material used in the ... |
|
| INVESTIGATION OF THE EFFECTS OF FORMING ON THE STRUCTURAL PERFORMANCE OF COLD-FORMED HY-100 ROLLED-STEEL TEE-BARS. |
25 MAY 1965 |
|
| Authors:
H. V. Cordiano; H. E. Reitman; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The effect of cold forming and subsequent thermal stress relief upon the structural performance of HY-100 rolled-steel tee-section curved beams has been determined. The additional effect of welding on the performance of similar structural members has also been determined. The results for the HY-100 structural members are compared with the performance of similarly fabricated HY-80 rolled-steel tee-section curved beams. (Author) |
|
| Thermal and Hydrolytic Stabilities of (4-Carboranylbutyl) Methylsiloxane-Dimethylsiloxane Copolymers |
10 MAY 65 |
23 pages |
| Authors:
A. D. Delman; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Under the High Temperature Polymer Program authorized by reference (a) the Naval Applied Science Laboratory is investigating the potential suitability of new polymeric materials developed by other research laboratories under government sponsorship for Naval use at elevated temperatures. In continuation of this work, there are reported herein the results of investigations of the thermal resistance and hydrolytic stability of two high molecular weight (4-carboranylbutyl) methylsiloxane-dimethylsiloxane copolymers designated by Reaction Motors ... |
|
| Report on the Acoustic Transmission and Vibration Damping Characteristics of Materials for Use on Sonar Domes |
01 APR 1965 |
13 pages |
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Although instrumentation for sonar detection has progressed to a fairly advanced stage, the presence of interference noise still remains the fundamental controlling factor in establishing sonar range and accuracy. Some of the interference noise is transmitted to the sonar transducers as a result of vibrations due to hydrodynamic or structure-borne excitations in the hull- mounted sonar dome itself. One of the methods currently used to reduce the the vibrations in ... |
|
| REARING BARNACLE CYPRIDS IN THE LABORATORY FOR MARINE FOULING STUDIES |
19 MAR 1965 |
48 pages |
| Authors:
A. Freiberger; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| Studies of marine fouling and evaluations of antifouling coatings and methods have been carried on at field stations under naturally occurring conditions. A more aggressive, fundamental study of the marine-fouling problem can be attempted, and evaluations of antifouling materials can be accomplished with greater speed and regularity, if studies employing live marine organisms are conducted under laboratory-controlled conditions. The techniques which, for the first time, succeeded in the laboratory mass-rearing ... |
|
| DEVELOPMENT OF HIGH THERMAL CONDUCTIVITY ELECTRICAL EMBEDDING COMPOUNDS. |
15 FEB 1965 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| This report describes the development of high thermal conductivity electrical embedding compounds utilizing a technique wherein the mold is first filled with large particle, high thermal conductivity tabular alumina, then impregnated by mixtures of epoxy compound and small particle tabular alumina. Contained herein, are the pertinent results of a previously reported study which led to the development of three high thermal conductivity compounds, and the further development of several additional ... |
|
| EFFECT OF PICKLING ON NOTCH-TOUGHNESS, AND SURFACE PITTING OF HY-80/100 TYPE STEEL PLATE |
13 JAN 1965 |
32 pages |
| Authors:
F. Ginsberg; I. Geld; I. A. Schwartz; F. D'Oria; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| An investigation was made to develop a uniform and improved pickling procedure for the descaling of HY-80/100 type steel plate. The principal governing criteria were (a) maximum depth of pitting and (b) effect on notch- toughness as evaluated by the Navy tear test. Results indicate the following: (a) HY-80/100 steel plate may be pickled in the standard solution for time intervals up to two hours without adverse effects on the ... |
|
| INVESTIGATION OF MAGNETIC TAPE WEAR CHARACTERISTICS - DEVELOPMENT OF A TAPE WEAR SIMULATOR. |
16 OCT 1964 |
|
| Authors:
J. Scheiman; R. Schwartz; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| This report covers the design of magnetic tape wear simulators for high resolution (wideband) tape and general instrumentation type tape. Validation was performed by comparing tape wear on each simulator to tape wear on tape transports of each type (wideband and general purpose). Tape wear on the simulators as well as the transports was judged by the degradation in the dropout characteristic. Recommendations were presented for specification tape wear requirements ... |
|
| Failure of varnish in sea water. |
OCT 64 |
|
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The object of this report was the study of the mechanism of failure of varnish in sea water and the development of a procedure which would accurately measure relative resistance of varnish to sea water under a DC potential. The failure mechanism is essentially electrolytic. Critical factors of failure are listed as cure, applied voltage, number of coats, and direction of coats. It was anticipated that these factors will be ... |
|
| UNDER-WATER CORROSION ON USS FISKE (DD-842) |
02 SEP 1964 |
21 pages |
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The last complete overhaul of the USS FISKE, (DD-842) was made in May 1962 at the Charleston Naval Shipyard. The ship was in warm waters for the greater part of the time prior to docking at the New York Naval Shipyard. Principal hull corrosion was found at stern areas and bilge keel vicinity. The ship was initially equipped with thirty two zinc anodes at the stern. Of these, nineteen remained, ... |
|
| ESTIMATING METHOD FOR PREDICTING NOISE ORIGINATING IN AIR CONDITIONING SYSTEMS ON NAVAL VESSELS. |
17 AUG 1964 |
50 pages |
| Authors:
F. B. Holgate; L. D. Shapiro; A. Simowitz; NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| A method for predicting noise levels, in terms of sound power in octave bands, generated by air conditioning or ventilation systems on submarines and surface vessels has been developed and reported herein. This method will enable the designer, within certain limitations, to predict system noise prior to construction and where necessary, reduce system noise to specified limits by the use of noise reduction devices. (Author) |
|
| Development of Additional Requirements for Inclusion in Military Specification, Sprayable Vibration Damping Material for Surface Vessels. |
05 AUG 1964 |
9 pages |
| Authors:
NAVAL APPLIED SCIENCE LAB BROOKLYN NY
|
| The development program on sonar dome and hull plate damping for surface vessels, authorized in reference (a), is continuing at the U.S. Naval Applied Science Laboratory. This report deals specifically with the development of additional requirements for inclusion in the proposed performance specification for a sprayable vibration damping material for surface vessels previously forwarded under reference (b). This specification was based on the Laboratory-developed ML-SD15 formulation. |
|
Reports by Corporate Author
