WorldCat Identities

UNITED TECHNOLOGIES CORP SUNNYVALE CALIF CHEMICAL SYSTEMS DIV

Overview
Works: 15 works in 17 publications in 1 language and 17 library holdings
Publication Timeline
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Most widely held works by UNITED TECHNOLOGIES CORP SUNNYVALE CALIF CHEMICAL SYSTEMS DIV
Rotating Valve for Velocity Coupled Combustion Response Measurements( Book )

3 editions published between 1978 and 1979 in English and held by 3 WorldCat member libraries worldwide

GSD has investigated the dual valve approach for measuring propellant velocity coupled characteristics. Analytical studies have developed a mathematical analysis of the transient ballistics. The solution of the transient mass, momentum, and energy equations incorporates both linear and nonlinear velocity coupling, as well as pressure coupling, particle damping, flow turning, and nozzle losses in the analysis. The analysis shows that velocity coupling dominates the system response when the two valves operate 180 deg out of the phase. The analytical solutions agree with known solutions for low frequency, bulk mode conditions and for the frequency response characteristics at acoustic resonance. Studies were conducted to explore the limitations of the dual valve approach and to estimate the effects of experimental uncertainties. Parametric studies using the linear velocity coupling model indicated properties of the solution that suggested an approximate method for deriving the response from pressure data using the linear velocity coupling assumption. Parametric studies were also made using the nonlinear velocity coupling model. The results show the interaction of mean velocity magnitude, threshold velocity, and amplitude of the velocity oscillation on the predicted pressure oscillations. A method was developed to derive the velocity response from experimental data for a given threshold velocity, but no method was found for deriving threshold velocity from experimental data
Nitrogen Gas Generator Development - CLGP( Book )

1 edition published in 1975 in English and held by 1 WorldCat member library worldwide

A 5-month program was conducted to develop a solid fueled nitrogen gas generating system for use in high acceleration environments. Tests were performed at temperatures from -40F to 165F to determine the ignition and ballistic characteristics, establish the gas generation efficiency, and confirm the structural integrity. Six conformance tests were conducted at three temperature levels. The basic design is capable of meeting all of the system requirements with the exception of the delivered gas temperature which was higher than desired. Recommendations for correcting this deficiency and other areas requiring technology development are discussed. The design of an alternate nitrogen gas generator system to replace a high pressure helium storage bottle is presented
Phase I. Design and Analysis of Short Length Super HIPPO Motor Assembly( Book )

1 edition published in 1977 in English and held by 1 WorldCat member library worldwide

The short length Super HIPPO motor is a single cartridge version of the Super HIPPO high pressure ballistic test motor. The motor operates at pressures to 2,500 psi with propellant charge weights to 24,500 lb and is used to test rocket motor nozzles and components. This report summarizes the design and analysis activities, phase I, of a contract to design, fabricate, and install at AFRPL. (Author)
Development and Evaluation of Rotating Valve Combustion Response Test Technique( Book )

1 edition published in 1976 in English and held by 1 WorldCat member library worldwide

Studies have been conducted to extend the frequency and pressure range of the rotating valve method for measuring the pressure coupled combustion response of solid propellants. Tests were conducted to evaluate the combustion response of ANB-3066 and UTP-17,075 at pressures of 500, 1,000, and 1,500 psi. The frequency covered the range from 85 to 800 Hz. Frequency and combustion pressure both affect the combustion response, the effect depending on the propellant formulation. Additional tests with UTP-18,586 and Shuttle SRM propellant also showed additional formulation effects on the response. In all cases, the response function extrapolates to the burning rate pressure exponent as predicted by linear combustion theory. A series of tests was also conducted with ANB-3066 from the T-burner master batch. The results were identical to the results obtained on the first program, provided the tests were conducted with samples freshly cut from the cartons. When the samples were potted into motor cases and stored for two years, however, the measured combustion response changed significantly
Development of a High Acceleration Gas Generation System( Book )

1 edition published in 1978 in English and held by 1 WorldCat member library worldwide

A program was conducted to develop further a solid fuel gas generator system. The gaseous output was cool (less than 550 F) most of its operating time and contained no large (less than 10 micrometers) particulate matter. Tests were conducted from -40 to 165 F to determine ignition delay and thermal sensitivity. Six conformance tests were conducted in flight-type hardware. Five complete nitrogen gas generator systems were delivered to MIRADCOM. (Author)
Stress Intensity Factors for Three-Dimensional Problems( Book )

1 edition published in 1976 in English and held by 1 WorldCat member library worldwide

This report is a collection and distillation of known information about stress intensity factors for three-dimensional problems. Particular emphasis is placed on solutions which are applicable to the problems encountered in solid propellant motors. Each section of the report is organized around a particular configuration of crack and surrounding media: cracks in an infinite domain, embedded cracks in a semi-infinite domain, etc. The cracks which are considered are planar with a circular, elliptical, or parabolic shape. In certain cases (such as crack surface intersections or plate problems) the complete answers are unknown. Controversies and unresolved problems are discussed in the hope of making the limitations of the various solutions clear to the reader
84-Inch Propellant Cartridges and Grains. Volume II. Propellant Test Data( Book )

1 edition published in 1977 in English and held by 1 WorldCat member library worldwide

This document reports the results obtained from casting a total of 30 84-inch cartridges with UTP-18,803A propellant (90% solids, 21% aluminum, HTPB). Both ballistic and mechanical property data obtained during the production of over 730,000 lbs of propellant is presented. Documentation for propellant production is provided. (Author)
84-Inch Propellant Cartrides and Grains( Book )

1 edition published in 1977 in English and held by 1 WorldCat member library worldwide

This document reports the results obtained from casting a total of 30 84-inch cartridges with UTP-18,803A propellant (90% solids, 21% aluminum, HTPB). Both ballistic and mechanical property data obtained during the production of over 730,000 lbs of propellant is presented. Documentation for propellant production is provided. (Author)
The Development of Improved Normal Stress Transducers for Propellant Grains. Volume I( Book )

1 edition published in 1979 in English and held by 1 WorldCat member library worldwide

This report details the CSD effort in the design, analysis, manufacturing, calibration, and embedded use of improved normal stress transducers. Prototype transducers from two different contractors were manufactured and tested as well as final production transducer models. Finite element analysis techniques used for transducer analysis are extensively covered and were used for design optimization and gage interpretation. Results covering gaseous nitrogen calibrations, long term stability, self-heating, diode effects, embedded thermal and pressurization loadings, and mechanical tests are presented and compared with design goals. Detialed manufacturing specifications are presented along with recommended calibration and installation techniques. The final transducer design is 0.130-in. high with an external prewired compensation package. Stability of the metal and epoxy bond has been optimized by special processing techniques which are presented. Several significant achievements were obtained during the program. The first computerized design tradeoff curves were generated for stress transducers. Successful electron beam welding of critical components on stress transducers was demonstrated. Transducer measured stress in propellant was verified independently in the tension-compression-shear and TM-1 devices. Transducer response under high rate loading conditions was demonstrated. Agreement between predicted and measured stresses for a thermal loaded solid propellant motor using the thermal-mechanical interaction factor was achieved. (Author)
Inert Carrier Process Application to HMX Nitrolysis and Recrystallization. Volume II. HMX Recrystallization( Book )

1 edition published in 1976 in English and held by 1 WorldCat member library worldwide

Feasibility of recrystalling HMX in the CSD ICP pilot plant using the solvent/nonsolvent precipitant technique has been shown. Water wet HMX with .3-percent acetic acid, representative of crude HMX from the Bachman process, has been dissolved and recrystallized as the beta polymorph meeting military specifications for size and purity. HMX classes 1 and 5, of interest in this contract, were obtained; however, class 4 was not made. HMX classes 2 and 6 as well as some above the class 1 size were made during the process variables studies. These variables included (1) solvents and nonsolvents in varying ratios. (2) temperature, (3) filtration and washing capability, (4) crystal growth and nucleation variables, (5) occluded inpurities, and (6) HMX concentration in solvent recycles. Teflon lined, teflon coated, and high nickel stainless steels were found to be suitable construction materials. Teflon was the preferred seal material; however, silicone O-rings, in locations where Teflon was unusable, were found to be a short term solution. (Author)
Inert Carrier Process Application to HMX Nitrolysis and Recrystallization. Volume III. Economic Analysis( Book )

1 edition published in 1976 in English and held by 1 WorldCat member library worldwide

This volume contains an order of magnitude economic analysis of the ICP for producing HMX by the DADN chemistry and for recrystallizing it. Acid plants and pollution control are included. Operating and capital costs for the manufacture and recrystallization of HMX at rates of 500,000 and 2,000,000 lb/month under two different processing conditions are derived. Detailed economic analyses in accordance with AR 37-13 format A are presented. (Author)
Inert Carrier Process Application to HMX Nitrolysis and Recrystallization. Volume I. DADN-HMX Chemistry( Book )

1 edition published in 1976 in English and held by 1 WorldCat member library worldwide

The application of the ICP to the nitrolysis of HMX was studied. The feasibility on bench scale and pilot plant scale was demonstrated. Design parameters for a complete continuous ICP pilot plant were obtained for the production of crude HMX via DAPT-DADN-HMX technology. Each chemical step was made in the present CSD pilot plant under continuous process conditions. (Author)
Short Length Super HIPPO Motor Assembly( Book )

1 edition published in 1978 in English and held by 1 WorldCat member library worldwide

The short length HIPPO motor is a single cartridge version of the Super HIPPO high pressure ballistic test motor. The motor operates at pressures to 2,500 psi with propellant charge weights to 24,500 lb and is used to test rocket motor nozzles and components. This report summarizes the contract to design, fabricate, and install at AFRPL, including the first motor firing with a test nozzle for the Interim Upper Stage motor. (Author)
The Development of Improved Normal Stress Transducers for Propellant Grains. Volume II. Appendices( Book )

1 edition published in 1979 in English and held by 1 WorldCat member library worldwide

This report details the CSD effort in the design, analysis, manufacturing, calibration, and embedded use of improved normal stress transducers. Prototype transducers from two different contractors were manufactured and tested as well as final production transducer models. Finite element analysis techniques used for transducer analysis are extensively covered and were used for design optimization and gage interpretation. Results covering gaseous nitrogen calibrations, long term stability, self-heating, diode effects, embedded thermal and pressurization loadings, and mechanical tests are presented and compared with design goals. Detailed manufacturing specifications are presented along with recommended calibration and installation techniques. The final transducer design is 0.130-in. high with an external prewired compensation package. Stability of the metal and epoxy bond has been optimized by special processing techniques which are presented. Several significant achievements were obtained during the program. The first computerized design tradeoff curves were generated for stress transducers. Successful electron beam welding of critical components on stress transducers were demonstrated. Transducer measured stress in propellant was verified independently in the tension-compression-shear and TM-1 devices. Transducer response under high rate loading conditions was demonstrated. Agreement between predicted and measured stresses for a thermal loaded solid propellant motor using the thermal-mechanical interaction factor was achieved. (Author)
84-Inch Propellant Grains( Book )

1 edition published in 1979 in English and held by 1 WorldCat member library worldwide

This report documents the results obtained during casting a total of 7 84-in. SLSH cartridges with UTP-18,803A propellant (90% solids, 21% aluminum, HTPB) for AFRPL. This program is an extension of the work discussed in AFRPL-TR-77-92 and brings the total amount of UTP-18,803A produced under full-scale production conditions to over 880,000 lb. In addition one ELSH grain was cast with 22,000 lb of UTI-610B, an inert propellant
 
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Audience level: 0.99 (from 0.96 for Stress Int ... to 0.99 for Rotating V ...)

Languages
English (17)