WorldCat Identities

Great Britain Defence Research Agency

Overview
Works: 96 works in 140 publications in 1 language and 194 library holdings
Genres: Specifications  Periodicals 
Classifications: G70.4, 621.3678
Publication Timeline
Key
Publications about Great Britain Publications about Great Britain
Publications by Great Britain Publications by Great Britain
Most widely held works by Great Britain
New views of the earth by ESYS Ltd ( Book )
in English and held by 20 WorldCat member libraries worldwide
The DRA table of space vehicles by A. N Winterbottom ( Book )
1 edition published in 1993 in English and held by 11 WorldCat member libraries worldwide
DRA/NASA/ONERA collaboration on icing research by William B Wright ( Book )
2 editions published in 1997 in English and held by 4 WorldCat member libraries worldwide
Sound radiation from infinite laminated composite shell with periodic rib stiffening by J. H James ( Book )
3 editions published in 1992 in English and held by 3 WorldCat member libraries worldwide
A theory of sound radiation from an infinite cylindrical shell which is stiffened periodically by ribs is given. Both shell and ribs are laminated composites. The shell is modelled by the differential equations of a thin shell theory. The flexible ribs, which exert both forces and moments on the shell's surface, are modelled by thin conical shell finite elements; degrees of freedom other than those at the shell's surface are removed by receptance methods. Excitations are time-harmonic mechanical forces at arbitrary points on the shell's surface and ribs, and acoustic monopoles in the exterior and interior fluids ... Sound radiation, Composite shell, Fiber reinforced material, Rib stiffening, Theoretical model
The Free decay of coupled heave and pitch motions of a model frigate by P Crossland ( Book )
2 editions published in 1992 in English and held by 3 WorldCat member libraries worldwide
The PAT-91 ship program has been found to over predict damping especially at resonant frequencies, resulting in there being no significant peak in the transfer function of pitch at resonance. This memorandum presents the results of a series of experiments that measured the decay time histories of a model frigate free to move in the vertical plane, in an attempt to identify where the problems might be occurring. Judgements are made concerning the components in the heave and pitch motions using the terms in the full two dimensional strip theory heave and pitch motion equations to explain the trends shown. The investigation has shown that the sectional damping coefficient appears to be over predicted. This results in a relatively poor prediction of heave decay curves at low speed and over estimates the damping in the pitch decay curves. It appears that the discrepancies seen in the heave and pitch transfer functions could be due to the wave excitation being predicted incorrectly
Languages for requirements specifications by G. P Randell ( Book )
1 edition published in 1992 in English and held by 3 WorldCat member libraries worldwide
The Olympus Satellite Utilisation Programme by J. H Crowther ( Book )
2 editions published in 1994 in English and held by 3 WorldCat member libraries worldwide
Annual report & accounts.. by Great Britain ( )
in English and held by 3 WorldCat member libraries worldwide
Lightning protection requirements for aircraft a proposed specification by G Odam ( )
1 edition published in 1991 in Undetermined and held by 2 WorldCat member libraries worldwide
This memorandum is the RAE/FS8 recommendation for a specification to define UK MOD requirements for the lightning protection of aircraft. It has been written to be appended to a JAC paper proposing changes to the lightning content of DEF STAN 00-970. This issue covers background and advisory material, certification, design and testing requirements
The dynamics of construction in a sulphur hexa-fluoride gas discharge by P. K Milsom ( )
2 editions published in 1993 in English and held by 2 WorldCat member libraries worldwide
Collecting more spoken enquiries to an information system by S Browning ( )
2 editions published in 1993 in English and held by 2 WorldCat member libraries worldwide
Initial experiments with phoneme decision trees by S N Downey ( )
2 editions published in 1993 in English and held by 2 WorldCat member libraries worldwide
Lies damned lies and databases by S R Wiseman ( )
1 edition published in 1992 in Undetermined and held by 2 WorldCat member libraries worldwide
Collecting a corpus of unscripted speech using a Wizard of Oz technique by Sue Browning ( )
2 editions published in 1992 in English and held by 2 WorldCat member libraries worldwide
Electrostatic charging of spacecraft in geosynchronous orbit by Andrew J Sims ( Book )
2 editions published in 1992 in English and held by 2 WorldCat member libraries worldwide
Overview of silicon device physics research by Michael J Uren ( )
2 editions published in 1992 in English and held by 2 WorldCat member libraries worldwide
Heat Transfer and Aerodynamics of a 3D Design Nozzle Guide Vane Tested in the Pyestock Isentropic Light Piston Facility by K. S Chana ( Book )
2 editions published in 1992 in English and held by 2 WorldCat member libraries worldwide
In HP turbines, predictions of the heat transfer to the blade and endwalls is particularly important for an accurate assessment of turbine component life. On the endwalls, there are often complex 3D (secondary) flows present which make predictions of heat transfer particularly difficult, A detailed investigation of this area has been carried out on a fully annular cascade of highly 3D nozzle guide vanes. Measurements were made on the vane and endwalls to determine heat transfer and aerodynamic chacteristics. Testing was conducted in a short duration Isentropic Light Piston test facility, at engine representative Reynolds number, Mach number and gas-to-wall temperature ratio. Interpreted test data are compared with computations obtained at test conditions
Transverse electric scattering by the delta boundary operator method by I. D King ( )
2 editions published in 1992 in English and held by 2 WorldCat member libraries worldwide
3D Pneumatic and 2D Dynamic Probes: Their Development and Subsequent Use in a Transonic Fan by M. A Cherrett ( Book )
2 editions published in 1992 in English and held by 2 WorldCat member libraries worldwide
Three different 3D pneumatic probes have been built and calibrated in detail, along with two dynamic yawmeters and a geometrically identical pneumatic yawmeter. This paper discusses the aerodynamic performance of the probes and compares detailed steady-state flowfield measurements taken with the probes at stator exit in a transonic fan. C148 transonic fan research is supported by the MOD Strategic Research Programme and the Aerospace Division of DTI ... Turbomachinery, Axial flow compressors, Pressure measurement, Unsteady pressure measurement, Viscous flows, C148
Specimens for Fatigue and Fracture Evaluation of Metals - FRAG recommendations (first issue) by Rebecca J Cook ( )
1 edition published in 1991 in Undetermined and held by 2 WorldCat member libraries worldwide
This report describes the findings of a working party formed by the Fatigue Research Advisory Group (FRAG). The main aims of the working party were to review specimens commonly used to generate fatigue and fracture data and to recommend specimens to be used in the future for a wide range of test purposes. This report defines a selected number of laboratory specimens which are recommended for future use in fatigue and fracture testing of metallic materials and joint configurations. It also defines a small group of core specimens which should be preferentially chosen when assessing the fatigue and fracture qualities of a particular material or of a particular structural feature. Guidelines are given on dimensional changes which may be needed for specific requirements. Advice is also given on specimen manufacture and assembly methods
 
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Alternative Names
Languages
English (40)