| Stress Corrosion Environmental Effects on AF 1410. |
1979 |
|
| Authors:
Victor V. Damiano; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
 | AF 1410 plates available from Universal Cyclops through Air Force Materials Laboratory under contract F33615-73-C-5093 were welded using filler wire fabricated from sheet stock of the same composition as the base plate and from 1/16 inch Dia. weld wire prepared by Universal Cyclop from AF-1410 stock. The method of welding was cold wire-gas tungsten arc using manual feed. Satisfactory welds having mechanical properties as welded approaching the properties of the ... |
|
| Composite Materials for Maxillofacial Prostheses. |
AUG 1978 |
|
| Authors:
Robert A. Erb; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The purpose of this program is to develop ultrasoft composite materials to be used as fillers in the fabrication of maxillofacial prostheses. The projected composite systems are elastomeric-shelled, liquid-filled microcapsules. Two experimental approaches were pursued toward making such microcapsules. One approach involves coaxial extrusion of a catalyzed elastomer precursor and core liquid into a rotating, graded-density bath. A major problem to be solved with this approach is how to break ... |
|
| Oil Filter Analysis Technique Research Program. |
JUL 1978 |
|
| Authors:
Richard H. Hollinger; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The objectives of this program were to select the most promising nondestructive test method for determining the quantity of iron in a 3-micron aircraft type oil filter, and to design, fabricate, and test two prototype field-usable units which utilized the method selected. Two prototype X-ray fluorescence analyzers were developed and tested. The analyzers detected iron with decreasing sensitivity to small increases in iron level up to 15 grams of iron ... |
|
| Development of Compliant-Mounted Gas-Lubricated Journal Bearings with High-Speed, High-Load Capability. |
JUL 1978 |
|
| Authors:
W. Shapiro; R. Colsher; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The report describes the development of compliant-mounted or, more accurately, compliant-pivot journal bearings. Bearings of 1.4 inches and 1.8 inches in diameter (L/D = 1) operated without whirl at 76,000 rpm. An inadvertent test malfunction subjected the bearings to shock loading which they sustained without significant damage. The 1.4 inch diameter bearing was loaded to approximately 19 psi at 60,000 rpm when journal contact occurred. Overloading produced obvious bearing wipe, ... |
|
| Stress Corrosion Environmental Effects on AF 1410. |
1978 |
|
| Authors:
Victor V. Damiano; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| AF 1410 plates available from Universal Cyclops through Air Force Materials Laboratory were welded using filler wire fabricated from sheet stock of the same composition as the base plate. The method of welding was cold wire-gas tungsten arc using manual feed. Satisfactory welds having mechanical properties as welded approaching the properties of the base plate in the double austenitized and aged condition were obtained. |
|
| Biological Effects of Nonionizing Electromagnetic Radiation. Volume II. Number 2, December 1977. |
DEC 1977 |
|
| Authors:
Bruce H. Kleinstein; Elena P. Saboe; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| This quarterly digest presents current awareness information on the biological effects of nonionizing electromagnetic radiation (microwave and radiofrequency) in the range of o Hz to 100 GHz. The effects of magnetic and electric fields (static and alternating) are also covered. Each issue contains abstracts of English and foreign current literature, summaries of ongoing research investigations, news items, and a directory of meetings and conferences. (Author) |
|
| Proceedings of the Symposium on Explosives and Pyrotechnics (9th) Held at Philadelphia, Pennsylvania, on September 15-16, 1976. |
16 SEP 1976 |
|
| Authors:
FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| These proceedings contain 32 papers, divided into four sections: (1) basic studies and measuring techniques, (2) testing and performance studies; (3) new developments, and (4) safety techniques. |
|
| Development of Compliant-Mounted Gas-Bearings for a Small High-Speed, 10KW Turboalternator. |
SEP 1976 |
|
| Authors:
Wilbur Shapiro; Richard Colsher; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Several types of compliant-mounted bearings were developed for application to a Solar 10KW Turboalternator Simulator. The most successful journal bearing incorporated one spring-mounted, pad and two fixed pads, all of which pivoted on a compliant-mount. Component testing of these journal bearings were successfully completed to 76,000 RPM which was the limiting speed of the component rig. Simulator testing was accomplished to 65,000 RPM at which time a journal bearing failure ... |
|
| Methods for Monitoring Initiating Sources Generated in Pyrotechnic Processing Equipment. |
SEP 1976 |
|
| Authors:
Charles T. Davey; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Conditions leading to an accident in batch processing of pyrotechnic materials were investigated. Levels of temperature, impact, friction, and electrostatic energy were defined for five typical pyrotechnic materials. The most sensitive of these materials yielded the following thresholds: temperature, 510 degree C; impact, 41 in-lb; friction, 10 to the eight power Newtons/square meter, and electrostatic energy, 29 millijoules. Means of detecting these levels of driving force were sought for processing ... |
|
| Directory of Aerospace Safety Specialized Information Sources, Vol. II, |
APR 1976 |
|
| Authors:
R. I. Rubinstein ; J. J. Pinto ; S. Z. Meschkow; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| This directory is a companion volume to the Directory of Aerospace Safety Specialized Information Sources (NASA CR-121206, Oct 73). The purpose of both publications is to make available to the aerospace and transportation safety community a handbook of organizations and experts in specific and well-defined areas of safety technology. It is designed for the safety specialist as an aid for locating both information sources and individual points of contact (experts) ... |
|
| Design Studies of a Motion System for the VTOL Simulation Facility. |
FEB 1976 |
|
| Authors:
Charles A. Belsterling; Edward I. Mucha; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| This report documents the design studies involved in determining the best configuration for a new integrated display and motion system for the Naval Training Equipment Center VTOL Simulation Facility. Four candidate schemes are considered and two are chosen for detailed comparison. The result is the recommendation for a new six-degree-of-freedom suspended from a low-profile foundation structure. (Author) |
|
| Hazard Analysis of Proposed Firing Circuits for Detonation Traps. |
NOV 1975 |
|
| Authors:
Ramie H. Thompson; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| This report presents the results of RF, high voltage and transient hazard analyses on four proposed systems and/or firing circuits used for initiation of a liquid explosive pipeline detonation trap. Only one circuit shows hazard possibilities. This is the breakwire sensor circuit which is indicated as potentially hazardous for both RF and transient modes. (Author) |
|
| Susceptibility of the M52A3B1 Primer to Ignition from Static Electricity Generated by a Human Subject |
SEP 1975 |
76 pages |
| Authors:
Charles T. Davey; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
 | Three lots of primers with resistances of 30,000, 300,000 and approximately 3,000,000 ohms were evaluated for sensitivity from circuits that were synthesized from measurements on small, medium and large human subjects dressed in cold-weather and Arctic army uniforms. Subjects were charged to a known voltage and then discharged into simulators for each of the three primer lots. |
|
| Testing of Elastic Mounts for Application in Bearings. |
AUG 1975 |
|
| Authors:
I. Anwar; F. Kramberger; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Recently there has been considerable interest in the development of compliantly mounted rigid pad bearings. To analyze this type of bearing mathematically requires the solution of fluid equations to determine the film behavior and elastic equations that govern the deformation of the compliant member bonded between the rigid members. However, an approximate analysis may be carried out by solving the fluid equations and the deformation equations independently with the common ... |
|
| Determination of the Electrical Properties of M9 Propellant. |
MAY 1975 |
63 pages |
| Authors:
Charles T. Davey; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Electrical properties of M-9 propellant were examined with varying temperature, humidity, density, particle size and electrical excitation. Main interest was in potential electrostatic problems in processing, handling and loading this propellant. Conductivity, dielectric constant, breakdown strength, and sensitivity were studied. |
|
| Camouflage Study of General Purpose Small and General Purpose Medium Tents. |
DEC 1974 |
|
| Authors:
John A. DeBenedictis; Constantin J. Monego; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| This study has developed one camouflage pattern for the General Purpose (GP) medium and GP small tent which was submitted for field evaluation by MASSTER. Two additional patterns were developed which are worthy of further evaluation. An overcoloring formulation was developed which is compatible with the FWWMR (Fire, water, weather and mildew resistant) finish on the cotton fabric used for military tents. Field application techniques were developed for applying the ... |
|
| Study of Pi-Bonding in Silicon Nitride and Related Compounds. |
01 AUG 1974 |
|
| Authors:
Peter E. D. Morgan; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The degree and nature of (p-d)pi-bonding in various silicon nitrogen compounds was studied. The simple solid compounds may in fact be one of the more easily studied examples of this mode of bonding. On the basis of relative bond lengths and angular relationships it is predicted that, assuming both alpha and beta silicon nitrides are pure Si3N4 compounds, the beta form is more stable than the alpha although, probably, only ... |
|
| Characterization of Aluminum Adherend Surfaces. |
JUL 1974 |
|
| Authors:
Amitav Pattnaik; John D. Meakin; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The purpose of this program was to characterize aluminum alloy adherends under accepted standard pretreatments, leading to an understanding of the behavior of the adherends under different chemical pretreatments and to possible future developments. Tech-niques such as scanning electron microscopy (SEM), energy disper- sive (ED) x-ray microanalysis, transmission electron microscopy (TEM) and selected area electron microscopy (SAD), reflection high energy electron diffraction (RHEED), auger electron spectro-scopy (AES), profilometry, and taper ... |
|
| Underwater Adhesives Study |
01-Jun-1974 |
12 pages |
| Authors:
R Hollinger; E Thelen; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Under Work Assignment No. 4 of Contract DAAD05-74-C-0723 by The Franklin Institute Research Laboratories (FIRL) for the U.S. Army Land Warfare Laboratory, three commercially available adhesives were evaluated for underwater use. Of the three items tested for quick and effective bonds (lap shear) the National Cash Register Company's (NCR) product appears to have the most promise; however, additional efforts will be required for formula improvement and for a device to ... |
|
| UNDERWATER ADHESIVES STUDY. |
JUN 74 |
|
| Authors:
R. Hollinger; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| An evaluation of four commercially-available adhesives for under- water use on steel, aluminum, PMMA and wood. The adhesives were Devcon (epoxy), F88 (2 formulations) and NCR. (AH-PL) ANNOTATION: An evaluation of four adhesives for underwater application. |
|
| Chemical Patient Blanket Preheaters. |
JUN 1974 |
|
| Authors:
P. W. D. Mitchell; C. T. Davey; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The report concerns heat generating blankets and sleeping bags, such as are required in Arctic and cold weather conditions. Some sleeping bags are described and evaluated, and two heating systems are discussed. One employs a pyrotechnic heat pack which includes a powdered iron-oxidizer water and a means for ignition. The second relies on the exothermic reaction between calcium oxide and phosphoric acid to generate heat. Several other less successful heating ... |
|
| Aerosol Explosive Indicator Kit |
JUN 1974 |
|
| Authors:
F. T. Sweeney; P. W. Mitchell; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The authors investigated development of aerosol spray systems for the detection of traces of explosives on envelopes, packages and personnel. Several reagent systems were screened using spot techniques on filter paper, and the most promising of these packaged in aerosol cans for preliminary field tests. The reagents are useful for detecting aromatic nitro explosives and aliphatic nitrate esters in the microgram range. |
|
| Develop Ultrafine Grain Size Titanum with Improved Mechanical Properties. |
JUN 1974 |
|
| Authors:
Roger C. May; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Tear, notched tensile, and fatigue crack propagation tests were used to assess the resistance of titanium material to toughness reduction in methanol-chloride and aqueous-chloride environments. Material variables included grain size, texture, cold work, interstitial content, and substitutional alloying. Unalloyed material, recrystallized to an ultrafine grain size, showed better resistance to degradation by the environments than Ti-5Al-2.5Sn and Ti-6Al-4V alloys. A scanning electron microscopy study of the fracture surfaces of tear ... |
|
| Human Waste Pyrolyzer. |
JUN 1974 |
|
| Authors:
D. Pindzola; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A simple and effective system for thermally reducing and inerting human waste products (feces and urine) has been successfully demonstrated. The modular unit tested should be serviceable by groups of up to 14 men in its present form. Basic system components consist of a 5-gallon collector pail, a liquid-fueled weed burner and a 30 or 55-gallon open-head drum lined with a mineral fiber blanket of insulation to serve as the ... |
|
| Thin Film Research and Development. |
APR 1974 |
|
| Authors:
Peter S. Francis; Thomas I. Haigh; Florence L. Serafin; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The objective of the effort was to investigate materials and techniques for applying antireflectance coatings having the properties of good adhesion and scratch resistance to acrylic plastics. The acrylic plastic used in helicopter windshields has a high degree of reflectivity of the impinging sun's light rays. This is a major threat to helicopter survivability since these rays are readily observed by enemy ground personnel. (Author) |
|
| Nonscratching Windshield Wiper Blade. |
APR 1974 |
33 pages |
| Authors:
John W. Woestman; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The program was undertaken to assess the possible utilization of low friction and/or porous materials in making wiper blades for helicopter plastic windshields. It was, therefore, directed to a search for new materials rather than a comparison of materials in current use. A literature search was made to acquire the most recent information on the theories of wear and abrasion plus any specific literature on wiper blades for plastic windows. ... |
|
| Reducing the Flammability of the LWL Snow Stabilization Agent. |
APR 1974 |
26 pages |
| Authors:
E. R. Evans; F. J. Sweeney; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The report describes the results of a feasibility study to investigate reducing the flammability of methanol (methyl alcohol). Methanol has been used as a snow stabilization agent for helicopter landings and since dissemination of this agent might be from on board the helicopter, the relatively low flash point (16C) was considered a flight safety hazard. Of the candidate laboratory formulations evaluated, two appear promising as a replacement for methanol. They ... |
|
| Production and Formation of Si3N4 from Precursor Materials. |
30 MAR 1974 |
|
| Authors:
Peter E. D. Morgan; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A region of rapid densification during the hot-pressing of amorphous silicon nitride at around 1490C has been discovered coincident with the crystallization to mostly alpha silicon nitride. The possibility exists that fully dense pure silicon nitride can be formed without the need for any additives by making use of this enhanced densification effect. The phase relationships between the alpha and beta forms have continued to defy simple explanation. However, a ... |
|
| Proceedings of the Symposium on Explosives and Pyrotechnics (8th) Held at Los Angeles, Calif., on 5-7 February 1974. |
07 FEB 1974 |
|
| Authors:
FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The Eighth Symposium on Explosives and Pyrotechnics was held in Los Angeles on February 5-7, 1974. Sponsored by The Franklin Institute, the symposium was attended by 210 persons representing 95 companies and agencies. The attendees included 13 foreign representatives from Australia, Canada, France, Great Britain, Israel, Liechtenstein, and South Africa. The Proceedings consist of 53 papers presented on 390 double pages. The papers are divided into six sections: (1) New ... |
|
| THE CHARACTERIZATION OF ADHEREND SURFACES. |
JAN 74 |
|
| Authors:
A. Pattnaik; J. D. Meakin; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The characterization of 2024-T3, 6061-T4 and 7075-T6 aluminum adherend surfaces is carried out at selected stages in the prebonding treatment of these metals. Surface morphology is examined by scanning electron microscopy and taper sectioning. Chemical composition of the surfaces and contaminants is determined by energy dispersive X-ray fluorescence analysis. Phase identification of the surface layer is carried out by reflection high energy electron diffraction. (Author-PL) ANNOTATION: The characterization of adherend ... |
|
| Draft Information on Training, Use and Maintenance of Explosives Detector Dogs |
JAN 1974 |
71 pages |
| Authors:
Ray Phillips; Robert Lomax; Max Krauss; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Procedures for training dogs to detect explosives are described in detail. Food is used as the primary reinforcer to establish the desired behaviors rather than the traditional method fo praise/petting/puishment. Beginning with simple odor discrimination, the training progresses through easy stages to complex search/detection in realistic settings. Concepts and strategies for conducting operational bomb searches in buildings are described. |
|
| Radio Controlled IR Indicator Light for Military Dogs |
DEC 1973 |
45 pages |
| Authors:
John W. Woestman; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A radio controlled IR light mounted on a dog harness was developed to enable a military dog handler to visualize, with the aid of an appropriate IR viewing device, the location of his dog at night. The system consists of a hand- held radio transmitter and the dog-mounted receiver unit with a pulsed IR light source. |
|
| Supplemental Data for Investigation of Sliding-Surface Bearings of Screw Pumps Utilized on the Navy Distillate Fuel Oil Conversion Program. |
DEC 1973 |
|
| Authors:
Harry C. Rippel; Iqbal M. Anwar; Wilbur Shapiro; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| ;Contents: Performance of journal bearings at transition and nominal operating conditions; Critical discharge pressure for journal bearings vs fuel oil viscosity; Journal bearing boundary friction energy density vs fuel oil viscosity. |
|
| Investigation of Sliding-Surface Bearings of Screw Pumps Utilized on the Navy Distillate Fuel Oil Conversion Program. |
DEC 1973 |
|
| Authors:
Harry C. Rippel; Iqbal M. Anwar; Wilbur Shapiro; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The report describes the evaluation of IMO pumps used in Naval fuel oil systems. Conversion to distillate fuels resulted in high failure rates due to poor lubrication and high fuel contamination. The effort primarily concentrated on the analytical study of the bearings when using NSFO and distillate-type fuels, i.e., ND, DFM and JP-5. The analytical approach developed allows evaluation of bearing performance when the mode of the bearing operation is ... |
|
| Model Study of Instant Vehicular Camouflage |
OCT 1973 |
|
| Authors:
Peter Bressler; John A. DeBenedictis; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A feasibility study to determine what materials and geometric systems would be required for fabrication of a camouflage system that would instantaneously cover a military vehicle in order to disrupt its characteristic shape or outline. The program involved intensive research and field trips in which the state-of-the-art of modern camouflage was studied; conception of numerous camouflage systems from the research and group synetics process; production of prescribed models and diagrams; ... |
|
| Advanced Capacitative Oil Debris Monitor. |
AUG 1973 |
|
| Authors:
Richard H. Hollinger; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The object of this program was to design, build, and calibrate two models of an advanced capacitative oil debris monitor based on the principle and design of a prototype monitor. Two models were provided: one to cover an oil flow range up to 3 gallons per minute, and a second to cover the oil flow range of 3 gallons per minute to 12 gallons per minute. The report includes installation ... |
|
| Detection of Drugs by an Enzyme Method. |
AUG 1973 |
23 pages |
| Authors:
Tamar Der O Hannessian; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A study was conducted using the standard Army 'G' Agent Detector Kit, ABC-M30A1 as a means for detecting drugs (heroin). The objective of this study was to establish the sensitivity of the enzyme inhibition method for morphine detection and to determine a procedure for rapidly cleaving the glucuronide. (Modified author abstract) |
|
| The Applications of Solid-State X-Ray Detectors in Diffraction Techniques. |
31 JUL 1973 |
|
| Authors:
Laurence Leonard; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A Si (li) solid state x-ray detector has been evaluated for its potential application in x-ray residual stress and retained austenite measurements. For fixed angle diffraction of low 2 theta values the inherent errors in determining peak positions coupled with the limited resolution of the detector made it impossible to achieve the degree of accuracy characteristic of the standard high 2 theta scanning technique for measuring residual stresses. However, there ... |
|
| ADHEREND SURFACES. |
JUN 73 |
|
| Authors:
A. Pattnaik; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Surface treatment of adherend surfaces has been performed by acetone degreasing and acetone cleaning. Scanning electron microscope observations show that the oxide layers in 2024 T-3, 6061 T-4, and 7075 T-6 adherends are broken up. However, the oxide layers still stick to the base metal and only in a few areas they have been separated from the base metal. Reflection electron diffraction has been attempted on adherends after acetone degreasing ... |
|
| Dual Diameter Roller Bearing - 3.5 Million DN-600 F. |
MAY 1973 |
189 pages |
| Authors:
John Rumberger; James Dunfee; Edmund Filetti; David Gubernick; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Five gas turbine engine mainshaft roller bearing configurations were investigated for capability of sustained performance at DN values (Bore in mm x Speed in RPM) from 2 million to 3.5 million and normal operating temperatures to 600F. A unique Dual Diameter Roller was selected for the final analysis of stress and lubrication parameters, design and fabrication. A 140 mm Bore Dual Diameter Roller Bearing operated successfully for 30 min. continuous ... |
|
| Snow Stabilization for Helicopter Landings. |
MAY 1973 |
|
| Authors:
Edward R. Evans; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The report describes the procedures for and the results of field tests conducted to stabilize snow by chemical treatment. Sintering of the snow by spraying methanol on its surface suppresses a possible 'white out' condition when helicopters perform normal take-off and landings upon the treated areas. The addition of a violet dye to the methanol also provided the aircraft pilot with a definitive form of reference when the ground was ... |
|
| Develop Ultrafine Grain Size Titanium with Improved Mechanical Properties. |
APR 1973 |
|
| Authors:
Roger C. May; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Modified Kahn-type tear tests and fatigue crack propagation tests were conducted to evaluate the effect of strengthening by grain refinement and/or cold deformation on the toughness of alpha titanium. In addition to grain size and cold work, the effects of interstitial content, texture, and substitutional alloying were evaluated. For unalloyed materials, the tear strength and the fatigue crack propagation rates were generally improved with increasing yield strength, independently of the ... |
|
| Reduction of Reflections from Helicopter Windshields, Rotor Blades and Rotor Hub. |
APR 1973 |
73 pages |
| Authors:
John A. DeBenedictis; John W. Woestman; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The report addresses itself to the problem of reducing reflections from helicopters. Specific areas investigated are the windshields, rotor blades and rotor hub assembly. All feasible ideas, however remote, were solicited and considered. Recommendations are divided into general sub-categories for each area and are presented with estimates of their potential effectiveness. The boyd of the report is composed of a technical discussion of every potential solution as well as related ... |
|
| Tunnel Denial Study |
MAR 1973 |
|
| Authors:
Francis J. Sweeney; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The feasibility of disseminating o-chlorobenzal malononitrile (CS) as a two-component aerosol system was studied. The rate of CS formation from o- chlorobenzaldehyde (OCBA) and malononitrile (MN) with and without catalyst was followed using gas liquid chromatography (GLC). The object of the study is to develop a method of controlling the rate of reaction in an enclosed space, such as a tunnel, in such a manner as to produce CS in ... |
|
| Research on Densification, Character and Properties of Dense Silicon Nitride. |
MAR 1973 |
|
| Authors:
Peter E. D. Morgan; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Methods are being devised for the simple preparation of silicon imides. Reactive hot pressing of these has already produced silicon nitride (alpha and beta forms) as dense as ever achieved before using pure material without additives. (Author) |
|
| Emergency Repair Shelter for the CH47 Helicopter. |
FEB 1973 |
|
| Authors:
Richard C. Quinn; Norman P. Leibel; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The purpose of this task was to design, develop and fabricate two sets of emergency repair shelters to fit the CH47 helicopter. Each set was to consist of two individually separate units. The one is essentially a curtain-like flap to enclose the rear cargo ramp opening. The other covers either the port or starboard engine and is comprised of a fiberglass framework and tent like shelter. In general, the shelters ... |
|
| Improved Water Analysis Kit. |
DEC 1972 |
29 pages |
| Authors:
William H. Collins; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| An Improved Water Test Kit which is smaller in size and simpler to use and stock than Water Quality Control Set, FSN 6630-262-7288, Standard B, has been developed. The kit has a minimum of glassware, weights 4 1/2 pounds, measures 9 x 6 x 6 inches and uses techniques completely different than former methods. Eliminated is the need of preparing reagents, performing titrations and other tedious measurements. Most of the ... |
|
| Predicting Performance of Gas-Lubricated Seals Using Advanced Numerical Techniques. |
JUL 1972 |
|
| Authors:
R. Colsher; W. Shapiro; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| Steady-state and dynamic performance of a gas-lubricated positive stiffness face seal was determined using advanced numerical methods based on a variable grid, finite difference, time-transient procedure. Comparisons were made between different numerical approaches used to solve the pressure distribution across the seal face and the Alternating Direction Implicit method was selected for the seal analyses. The resulting computer program was found to be faster (by a factor of 15) and ... |
|
| Derivation of a Fatigue Life Model for Gears. |
MAY 1972 |
|
| Authors:
John H. Rumbarger; Larry Leonard; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| A load-life model is developed for calculating the fatigue life and reliability of a spur gear mesh. The dynamic capacity of a gear mesh is defined as the tangential load which can be transmitted for one million pinion revolutions with a 90% probability of survival. The model is an extension of the currently accepted Lundberg-Palmgren Rolling Element Bearing Life Model. Limited rolling contact testing of cylindrical samples with and without ... |
|
| Metallic Debris Monitor for Recirculating Lubricating Oil Systems. |
APR 1972 |
|
| Authors:
Richard H. Hollinger; FRANKLIN INST RESEARCH LABS PHILADELPHIA PA
|
| The object of the program was to design, develop, and test an in-line metallic debris monitor for recirculating lubricating oil systems. The monitor was based on the removal of metallic debris by the action of centrifugal oil flow and filter screening, deposition of the debris in the annulus of a capacitor, and subsequent measurement of the change of capacitance compared to a reference capacitor of identical dimensions. The unit was ... |
|
Reports by Corporate Author
