| Metrics of Software Quality. |
AUG 1979 |
|
| Authors:
Z. Jelinski ; P. B. Moranda; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
 | This report covers the period from 1 June 1978, to 31 May 1979, during which the second of three phases was completed. This phase concentrated on the augmentation of the Program Testing Translator described in the Final Report on AFOSR F44620-74-C-008 of December 1976. The augmentation permits formation of links of greater length than those previously used. It also alleviates the process of composing the tracks of execution sequences, a ... |
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| Application of Nonlinear Crystals. |
30 JUL 1979 |
|
| Authors:
Carol J. Kastner ; Jack J. Grossman; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Contents: Prior Work on Correlation and Convolution; Experimental -- Joint Transform Correlator (JTC), Frequency Conversion Facilities, NRL Transparencies, Convolutions with Square Apertures, Use of Image Plane Filters - Two Crystal Experiments, Internal Reflections, SHG and Noise, Convolution Non-linearity, Convolution Peak Intensity Ratios, Crystal Damage, N-Pattern Test of CD*A; Appendix A-I - MDAC Contract Review; Appendix A-II - Theory - The Convolution and Correlation Operations, Frequency Conversion, Soviet Papers, and Determination ... |
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| An Analysis of External Burning Propulsion. |
MAR 1979 |
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| Authors:
D. W. Harvey; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A computer model of external burning propulsion of axisymmetric, supersonic vehicles is described. Reactive gaseous injectant issues from individual nozzles around the vehicle periphery, near the base. At the base these individual jets merge into an annulus of injectant surrounding the base cavity. Detailed individual-jet calculations in the region upstream of the base are made by an existing analysis developed for fuel-rich jet interaction. The injectant annulus is calculated assuming ... |
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| Optimum Tail Fairings for Bodies of Revolution. |
MAR 1979 |
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| Authors:
A. M. O. Smith; T. R. Stokes Jr.; R. S. Lee; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This report describes a computerized method that will design tails for bodies of revolution that satisfy the Stratford criterion for zero wall shear. Stratford's original two-dimensional solution is extended to axisymmetric flow in order to implement the procedure. The method involves simultaneous solution of the extended Stratford equation and the necessary boundary conditions through the use of an inverse potential flow program. Tails designed with this procedure can be categorized ... |
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| Development of a Composite Geodetic Structure for Space Construction. |
13 FEB 1979 |
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| Authors:
A. J. Cwiertny ; R. Johnson Jr.; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A structurally efficient composite geodetic beam and a beam fabrication machine for on-orbit construction of large space structures are being developed. Design criteria, geodetic beam and beam builder conceptual design, analysis and trade studies, preliminary sizing of feasibility test articles and representative composite material development activities are being conducted. A 231 page briefing manual is referred to. (Author, modified). |
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| Development of a Composite Geodetic Structure for Space Construction. |
03 JAN 1979 |
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| Authors:
A. J. Cwiertny ; R. Johnson Jr.; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The objective of this program is to develop a structurally efficient composite geodetic beam and a beam fabrication machine for on-orbit construction of large space structures. Program efforts will include derivation of geodetic beam structural design criteria, geodetic beam and beam builder conceptual design, analysis and trade studies, preliminary sizing of feasibility test articles, and composite material development. During this reporting period a design drawing for a geodetic beam demonstration ... |
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| Development of a Composite Geodetic Structure for Space Construction. |
JAN 1979 |
|
| Authors:
MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| An overview summary of the tasks involved in designing, fabricating, and testing, various, structural parts of a geodetic beam structure to be used in various aerospace applications (space stations, satellite structres, and space behicles) is presented. Joining procedures and test program activities are outlined. (LS). |
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| DESIGN, FABRICATION, AND NONDESTRUCTIVE EVALUATION OF AN ADVANCED COMPOSITE FOIL TEST COMPONENT (TAPERED BOX BEAM) |
79 |
|
| Authors:
L. B. Greszczuk; W. P. Couch; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A foil test component (tapered box beam) consisting of hybrid graphite/epoxy skins and HY-130 steel spars was designed and fabricated. This design is representative of a hydrofoil strut/foil system having an approximate 25 percent weight savings compared to current metallic strut/foil systems fabricated entirely of steel with a yield strength of 900 MPa. Two identical box beams will be tested in the laboratory (one in air, the other in salt ... |
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| Development of a Composite Geodetic Structure for Space Construction. |
20 DEC 1978 |
|
| Authors:
A. J. Cwiertny ; R. Johnson Jr.; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A Machine for fabricating geodetic beams for on-orbit construction of large space structures is described. Program efforts include derivation of geodetic beam structural design criteria, conceptual design, analysis and trade studies, preliminary sizing of feasibility test articles, representative composite material development, joining and geodetic beam feasibility tests. Materials used in composites for the beams are fiberglass, graphite (high modulus) and polysulfone P1700. (Author, modified). |
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| Development of a Composite Geodetic Structure for Space Construction. |
20 NOV 1978 |
|
| Authors:
A. J. Cwiertny ; R. Johnson Jr.; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The objective of this program is to develop a structurally efficient composite geodetic beam and a beam fabrication machine for on-orbit construction of large space structures. The program efforts include derivation of geodetic beam structural design criteria, beam builder conceptual design, analysis and trade studies, preliminary sizing of feasibility test articles, representative composite material development, joining and geodetic beam feasibility tests, and initiation of geodetic beam builder preliminary design. (Author, ... |
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| Development of a Composite Geodetic Structure for Space Construction. |
20 OCT 1978 |
|
| Authors:
A. J. Cwiertny ; R. Johnson Jr.; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The Objective of this program is to develop a structurally efficient composite geodetic beam and a beam fabrication machine for on-orbit construction of large space structures. Work during this reporting period included selection of candidate geodetic beam concepts, conceptual design of geodetic beam machine concepts, geodetic beam parametric studies and a comparison of graphite thermoplastic geodetic and open cap triangular beams. (Author, modified). |
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| Design and Fabrication of a Ring-Stiffened Graphite-Epoxy Corrugated Cylindrical Shell, |
AUG 1978 |
|
| Authors:
R. Johnson Jr.; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Work conducted from 30 July through 31 January 1978 in a program to design and fabricate a graphite-epoxy cylindrical shell is described. Design and fabrication of subelement test panels that represent key portions of the cylinder are also described, as are supporting tests of coupons, sample joints, and stiffening ring elements. The cylindrical shell is a ring-stiffened, open corrugation design that uses T300/5208 graphite-epoxy tape as the basic material for ... |
|
| Metrics of Software Quality, |
JUL 1978 |
|
| Authors:
Z. Jelinski; P. B. Moranda; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This report covers the period from 1 June 1977, to 31 May 1978, during which the first of three phases was completed. This phase concentrated on identifying existing strategies for testing and composing new ones for use in the subsequent phases in which software metrics, related to testing, will be developed and tested against a variety of computer programs. The aim of the research is to produce an automatic testing ... |
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| A Quantitative Model of Ionospheric Electron Density. |
28 FEB 1978 |
|
| Authors:
Willard P. Olson; Karl A. Pfitzer; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This report summarizes work performed during the entire contract period. The general goal was to develop a quantitative global ionospheric electron density model that can be used to predict variations in the electron density. The model developed under this contract represents the electron density at all latitudes and local times, it is computationally fast and can be used in a predictive mode. The electron density model relies on physical input ... |
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| Aerodynamic Computer Code for Computing Pressure Loading on Complete Missile for Structural Analysis. |
JAN 1978 |
|
| Authors:
Kenneth K. Wang; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Aerodynamic computer code for calculating the pressure distribution on missile or its components e.g., body and wings and to interpolate by surface fit at locations as specified for structural analysis using the NASTRAN computer code. (Author) |
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| IDENTIFICATION AND CONTROL OF FRACTURE CRITICAL SOLID ROCKET BOOSTER (SRB) STRUCTURE |
JUN 77 |
|
| Authors:
D. W. O'Neal; D. A. Deamer; R. M. Fujita; E. F. Wysocki; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Identification of potentially fracture critical parts in large structural assemblies is possible with simplified, conservative fracture analyses. The MSFC crack growth computer program is a useful tool for analyzing structure subjected to a fatigue spectrum. |
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| Quantitative Methods for Software Reliability Measurements. |
DEC 1976 |
|
| Authors:
Paul B. Moranda; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This research effort in the field of software reliability is primarily based on probability: as applied to error detection rates; as applied to the generation of input tests data; and as applied to the economics of random versus constructed test cases. The background description of the flow of computations is made by means of a directed graph representation and a connection matrix depicting possible links between program segments. Random numbers ... |
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| CRACKING IN 3D CARBON-CARBON COMPOSITES DURING PROCESSING AND EFFECTS ON PERFORMANCE |
SEP 76 |
|
| Authors:
J. Jortner; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The microstructure of a three-dimensionally reinforced carbon-carbon composite, such as those being considered for use as reentry vehicle nose-tips, is a complex array of impregnated yarn bundles, pockets and pads of matrix material, pores, and cracks. Detailed study of the unit cells in some current materials shows that the crack structure is periodic; that is, the crack locations and orientations in neighboring unit cells are similar. The cracks form a ... |
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| EVALUATION OF DISPERSION STRENGTHENED NICKEL-BASE ALLOY HEAT SHIELDS FOR SPACE SHUTTLE APPLICATION |
MAR 76 |
|
| Authors:
R. Johnson Jr.; D. H. Killpatrick; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| A Failure Rate Model for Burn-In through Steady State, |
1976 |
|
| Authors:
Paul B. Moranda; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Two failure rate models for the so-called 'burn in' phase have been developed. One model based on a constant-step decrease implicitly assumed a pure state (zero residual error) could be achieved. The other, based on a geometric progression in the failure rates, has an asymptotical zero failure rate. In the new model, presented here, the system error rate is composed of a combination of a rate which is constant (mid-phase) ... |
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| Application of PATCHES-III to the Three-Dimensional Response of Laminated Composite Structures, |
NOV 1975 |
|
| Authors:
E. L. Stanton; L. M. Crain; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A recently developed program for the stress analysis of general solids of composite material is applied in this study to a sandwich panel impact problem and a partially cracked laminate problem. Objectives of the study are: (1) to determine the load distribution, the stresses and the deformations in individual plies of these composite laminates and (2) to demonstrate the modeling capabilities and limitations of the PATCHES-III program. Preparatory to the ... |
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| Probability-Based Models for the Failures during Burn-In Phase. |
NOV 1975 |
|
| Authors:
Paul B. Moranda; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Two models which were developed to describe the software error detection process have applicability to the burn-in phase of hardware failure; the failure rate for the 'next' error is either proportional to the current number of remnant errors (de-eutrophication model) or decreases to a value which stands in a fixed ratio to its prior value (geometric de-eutrophication model). Estimates of the mean time to failure and the degree of completeness ... |
|
| The McDonnell Douglas Geophysical Observatory Program Progress Report XIII (Conjugate Point Riometer Program). |
SEP 1975 |
|
| Authors:
Michael B. Baker; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This report, the thirteenth and final progress report on the McDonnell Douglas Geophysical Observatory Program, discusses history of the program from 1962 through 1973, and results of the research carried out in 1974. Topic areas covered include: Station operation; Ionospheric work; Solar studies, Magnetospheric studies; Satellite measurements; International participation; and, 1974 research on solar activity, ATS-6 studies, magnetospheric physics, and station operation. |
|
| Aerodynamic Computer Code for Computing Pressure Loading on Wings for Structural Analysis. |
JUL 1975 |
|
| Authors:
Kenneth K. Wang; Richard S. Lee; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The report describes the development of an aerodynamic computer code for calculating the pressure distribution on wings and to interpolate by surface fit at locations as specified for structural analysis using the NASTRAN computer code. |
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| INDUSTRY TECHNOLOGY ASSESSMENT OF GRAPHITE-POLYIMIDE COMPOSITE MATERIALS |
JUN 75 |
|
| Authors:
MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| Delta Interim Upper Stage System Study. Volume I. Executive Summary. |
JUN 1975 |
|
| Authors:
R. P. Dawson; J. F. Meyers; R. C. Doiron; R. G. Monger; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This study provides DOD with the preliminary design of a Delta IUS system, the identification of IUS/Orbiter and IUS/Spacecraft interfaces, and Delta IUS program definition and costs. The study has shown that with the addition of two inexpensive propellant tanks and other minor stage changes, the basic Delta stage can be easily converted into an IUS stage that can capture all of the DOD and NASA earth orbital missions with ... |
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| Delta Interim Upper Stage System Study. Volume II. Technical Report. |
JUN 1975 |
|
| Authors:
R. P. Dawson; J. F. Meyers; R. C. Doiron; R. G. Monger; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The Space Shuttle System will require an upper stage (Space Tug, or OOS - Orbit-to-Orbit Shuttle) to achieve maximum effectiveness. A reusable upper stage, although highly desirable, requires a greater initial cash outlay, which would compete for early Shuttle development program funds. Hence, an expendable upper stage, to be used in the interim, has been the subject of various government studies in recent years. This report describes the results of ... |
|
| EVALUATION OF DISPERSION STRENGTHENED NICKEL-BASE ALLOY HEAT SHIELDS FOR SPACE SHUTTLE APPLICATION |
MAY 75 |
|
| Authors:
R. Johnson Jr.; D. H. Killpatrick; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| Los Angeles Harbor Field Investigation of Oil and Background Luminescence Signatures. |
MAY 1975 |
|
| Authors:
H. Gerald Gross; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A field investigation of UV laser (pulsed and CW) induced luminescence signatures of site water at five scattered sites in Los Angeles Harbor and one in its principal source of inland inflow, Dominguez Channel, was achieved. The signatures are similar, indicating dominance by one or more common constituents. The peak at about 4500A and shape of the signature suggest dominance by heavier aromatics, probably by oil and grease, among the ... |
|
| Radiation Effect on GaAs Interface. |
MAY 1975 |
|
| Authors:
Rainer Zuleeg; Kurt Lehovec; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The C-V and Q-V technique was applied to the study of interface charge distributions of GaAs epitaxial layers grown on semi-insulating substrates. Changes of mobility and free carrier concentration in the epitaxial layer and extending through the interface into the substrate were determined before and after exposure to a neutron fluence of 2.7 x 10 to the 15th power n/sq cm and a total dose of ionizing radiation of 10 ... |
|
| Industry Technology Assessment of Graphite-Polyimide Composite Materials. |
17 MAR 1975 |
|
| Authors:
MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This report was compiled by the McDonnell Douglas Astronautics Company with the NASA, Langley Research Center, Hampton, Virginia. The report summarizes an industry assessment of graphite-polyimide composite material technology. (Author, modified). |
|
| Biaxial Tensile Fracture of ATJ-S Graphite. |
MAR 1975 |
|
| Authors:
Julius Jortner; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Failure strains were measured in specimens of ATJ-S graphite fractured in biaxial tension using a test method that relies on the centrifugal forces produced by rotation to induce the desired stresses. The results are presented in terms of the cumulative probability of fracture versus maximum principal strain, and are compared to similar data for ATJ-S in uniaxial tension. The comparison shows that, at a given level of strain, the fracture ... |
|
| NUCLEAR HARDENED LADD SENSOR TEST IN THE ASET FACILITY, IN: BMDATC NUCLEAR HARDENED SENSOR TECHNOLOGY SYMPOSIUM PROCEEDINGS, PAPER 16 |
JAN 1975 |
|
| Authors:
R.E. SCHATZMANN; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| NUCLEAR HARDENED OPTICAL SENSOR TEST FACILITY, IN: BMDATC NUCLEAR HARDENED SENSOR TECHNOLOGY SYMPOSIUM PROCEEDINGS, PAPER 18 |
JAN 1975 |
|
| Authors:
A.B. DAUGER; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| Radiation Effect on GaAs Interface, |
SEP 1974 |
|
| Authors:
Rainer Zuleeg; Kurt Lehovec; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The C-V and Q-V technique was applied to the study of interface charge distributions of GaAs epitaxial layers grown on semi-insulating substrates. Changes of mobility and free carrier concentration in the epitaxial layer and extending through the interface into the substrate were determined before and after exposure to a neutrons fluence of 1.6 x 10 to the 15th power n/sq cm and a total dose of ionizing radiation of 10 ... |
|
| MATERIAL RESPONSE TO HIGH POWER LASER RADIATION |
JUN 1974 |
|
| Authors:
F.D. FEIOCK; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| DRAW FORMING OF SCALE SHUTTLE EXTERNAL TANK DOME GORES |
MAY 74 |
|
| Authors:
G. Garfield; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| Mechanics of Failure of Composites. |
MAY 1974 |
|
| Authors:
Longin B. Greszczuk; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Experimental and theoretical studies are presented on the influence of composite microstructure on the transverse tensile and shear strength of graphite and glass fiber- reinforced composites predicted from previously formulated failure criteria. Sensitivity of the transverse and shear strength to variations and errors in fiber content, void content, resin content, specific gravity of composite, and properties of the fibers and the matrix is investigated. In conjunction with these studies, an ... |
|
| FRACTURE CONTROL OF WELDED PRESSURISED STRUCTURES FOR MANNED SPACEFLIGHT |
MAR 74 |
|
| Authors:
R. A. Rawe; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The need for a fracture-control system is demonstrated by past failures of spacecraft structures. Sources and types of defects that can result in premature failures are listed, with emphasis on weld-joint defects and countermeasures for lack of penetration. An analysis of the growth of part- through cracks, related to leak-before-burst design, is presented with an illustrative example. A shortcoming in the cyclic-life analysis of proof-tested, thin-wall structures containing very short ... |
|
| Software Automated Verification System Study. |
JAN 1974 |
|
| Authors:
Leon G. Stucki; Nelson P. Svegel; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The needs and requirements of the Army Tactical Data Systems (ARTADS) for an integrated and comprehensive set of automated testing procedures and tools were studied. Both TACPOL and MOL computer programming languages were analyzed in detail to determine those measurement algorithms which could provide automated assistance in the verification and validation of computer systems built with these languages. The feasibility of using McDonnell Douglas Astronautics Company's Program Testing Translator (a ... |
|
| Automated Estimation of Kinetic Rate Parameters and Mechanisms of Gas Phase Chemical Reactions. |
JAN 1974 |
|
| Authors:
Maria Ramos Martinez; Donald J. Miller; Ronald L. Thommarson; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Automated computational techniques were developed and used to evaluate the specific kinetic properties of molecules and to define chemically reacting systems. The Arrhenius rate parameters were calculated for over 100 simple fission, atom transfer, and hot molecule reactions. These data have been used to model the thermal decomposition complex gas phase reactions of organic molecules. As many as 30 elementary reactions were used in the reaction simulation analyses. Concentration/rate time ... |
|
| Radiation Tolerance of GaAs Broadband Amplifier. |
31 OCT 1973 |
|
| Authors:
Rainer Zuleeg; Allen F. Behle; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The response and degradation characteristics of microstripline GaAs junction field-effect transistor integrated microwave amplifiers were investigated in radiation environments. Permanent changes in electrical performance due to fluences of 5x 10 to the 14th power and 1x 10 to the 15th power neutrons/sq cm (E > 10 KeV) are reported and discussed. Experimental results are compared with theoretical predictions of device transconductance changes, which have been established and verified prior to ... |
|
| Multiaxial Response of ATJ-S Graphite. |
OCT 1973 |
132 pages |
| Authors:
Julius Jortner; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
 | Experiments to explore the fracture and deformation of ATJ-S graphite under multiaxial stresses are described. The program included additional fracture tests in biaxial tension at 2000F; an analytical evaluation of the applicability and limitations of biaxial test data; tests at room temperature under triaxial stress states to measure the effects of multiaxiality on strain; and some biaxial experiments at room temperature to further explore the nature of 'biaxial softening' (the ... |
|
| Plume Contamination Effects Prediction. The CONTAM Computer Program, Version II. |
AUG 1973 |
|
| Authors:
R. J. Hoffman; W. T. Webber; S. S. Cherry; F. Cramer; W. D. English; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The effect of rocket exhaust plume impingement on sensitive vehicle surfaces is an area of continuing concern in the design of spacecraft, missiles and reentry vehicle systems. The objective of this study was to develop a single computer code capable of predicting the production, transport, and deposition of engine and plume contaminants, and the change in absorptivity, emissivity, reflectivity, and transmissivity of a functional spacecraft surface, such as thermal control ... |
|
| Bank-To-Turn Steering for Highly Maneuverable Missiles. |
AUG 1973 |
|
| Authors:
H. D. Froning ; D. L. Gieseking; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
|
| HYBRID SIMULATION TECHNIQUES FOR POSTFLIGHT ANALYSIS IN: TRANSACTIONS OF THE FIRST NWC SYMPOSIUM ON THE APPLICATION OF CONTROL THEORY TO MODERN WEAPON SYSTEMS, P471-489 |
JUN 1973 |
|
| Authors:
D.L. GIESEKING; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The main objective of flight testing during advanced development of a missile is feedback of scientific information to assist in future design. This paper will present techniques for deriving this information from flight test data using hybrid simulation methods and will discuss certain simulation problems encountered in supporting the QuickTurn flight test program. The flight test evaluator (FTE) is the primary tool that was developed for postflight analysis. This simulation ... |
|
| Postflight Data Analysis by Means of Adaptive Iterated Extended Kalman Filtering. In: Transactions of the First NWC Symposium on the Applications of Control Theory to Modern Weapons Systems. |
JUN 1973 |
|
| Authors:
Jerry M. Mendel; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| This paper describes a specific postflight data analysis (PFDA) technique, which is termed adaptive, iterated, extended Kalman filtering (ALEKF), and illustrates the application of the PFDA tool to the estimation of aerodynamic coefficients (C sub x, S sub N, and C sub m) for a single-axis model of a thrust-vector-controlled vehicle. |
|
| Micromechanics Failure Criteria for Composites. |
07 MAY 1973 |
|
| Authors:
Longin B. Greezczuk; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| Theoretical and experimental studies are presented of the micromechanics failure criteria for the transverse tensile and shear strengths of composites. Parameters accounted for in the failure theories include: fiber properties, matrix properties, fiber content, void content, volume fraction of ineffective fibers, internal triaxial stresses due to fibers and voids, and the interaction of stresses from fibers and voids. Equations are developed for predicting the influence of voids on elastic properties ... |
|
| Radiation-Hardened Operational Amplifier Development, |
MAY 1973 |
|
| Authors:
J. K. Notthoff; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| The report describes the development and detailed test results of radiation-hardened linear amplifiers capable of operating in severe gamma and neutron radiation environments. The Motorola MCE 7041F and Texas Instruments RSN 52800 hardened operational amplifiers were tested and characterized in pulsed ionizing radiation environments at dose rates up to 2 x 10 to the 11th power rad(Si)/s and in fast neutron environments up to fluences of 10 to the 15th ... |
|
| Estimation of Gas-Phase Thermokinetic Parameters. Volume I. A Fortran Program for Computing the Thermochemical Properties of Complex Gas Molecules by the Method of Group Additivity. Book 1. Volume II. Definition of Requirements for Estimation of Kinetic P |
APR 1973 |
157 pages |
| Authors:
Maria Ramos Martinez; MCDONNELL DOUGLAS ASTRONAUTICS CO HUNTINGTON BEACH CALIF
|
| A FORTRAN program for calculating the thermodynamic properties of complex gas molecules by the method of group additivity is documented. Included in Book 1 of Volume I are descriptions of the computational method, characteristics, functions, input/output formats, and logic structure of the program. Seventeen case calculations for diversely structured molecules are presented. Group additivity thermodynamic methods are applied to the calculation of Arrhenius parameters. Studies of several classes of unimolecular ... |
|
Reports by Corporate Author
