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029 0 a| DTICEb| ADA513196;

035 a| (Sirsi) o574446556;

035 a| (OCoLC)574446556;

040 a| DTICEc| DTICEd| GPOd| UtOrBLW;

049 a| ERE#;

074 a| 0324-A-01 (online);

086 0 a| D 101.133:5058;

100 1 a| Wagner, Tyler.=| ^A1231550;

245 10 a| Upgrades to the closed bomb facility and measurement of propellant burning rate /c| Tyler Wagner, John Ritter, and Barrie E. Homan.;

260 a| Aberdeen Proving Ground, MD :b| U.S. Army Research Laboratory,c| [2010];

300 a| 1 online resource (vi, 29 pages) :b| illustrations.;

336 a| text2| rdacontent;

337 a| computer2| rdamedia;

338 a| online resource2| rdacarrier;

490 1 a| ARL-TR ;v| 5058;

500 a| Title from title screen (viewed March 31, 2010).;

500 a| "January 2010.";

504 a| Includes bibliographical references (p. 12).;

506 a| APPROVED FOR PUBLIC RELEASE.;

513 a| Final;b| June-July 2009.;

520 a| Propellants are a class of materials designed to produce low molecular weight gases that can be used in guns, missiles, and pyrotechnics. The burn rate of a propellant is used to design such munitions systems. The preferred method for obtaining the burn rate is the constant volume closed bomb. The pressure-time history obtained in closed bomb experiments, coupled with a propellant's thermochemistry and geometry, is used to calculate the linear burn rate. The hardware and software previously used to record the data needed to calculate the linear burn rate were outdated. The software that controlled the closed bomb experiments required modification in order to integrate the command set of the new Agilent oscilloscope. The new program sends user-defined commands, reads data from an external voltage source, and arranges that data in the proper format for XLCB, the burn rate data reduction code written in house using Visual BASIC in Microsoft Excel. The new code improves efficiency by creating buffers, eliminating extraneous subroutines. The new software has been tested for accuracy against the previous program using a split signal and closed bomb tests. This report presents a brief overview of closed bomb testing, a detailed account of the program and programming process, and results confirming the accuracy of the new program.;

650 0 a| Solid propellants.=| ^A219354;

650 17 a| Inorganic chemistry.2| scgdst;

650 27 a| Physical chemistry.2| scgdst;

650 27 a| Atomic and molecular physics and spectroscopy.2| scgdst;

650 27 a| Combustion and ignition.2| scgdst;

650 17 a| Molecular weight.2| dtict;

650 17 a| Closed bomb tests.2| dtict;

650 17 a| Propellants.2| dtict;

650 17 a| Burning rate.2| dtict;

650 17 a| High explosives.2| dtict;

650 27 a| Data reduction.2| scgdst;

650 27 a| Ammunition.2| scgdst;

650 27 a| Lightweight.2| scgdst;

650 27 a| Geometry.2| scgdst;

650 27 a| Transducers.2| scgdst;

650 27 a| Splitting.2| scgdst;

650 27 a| Subroutines.2| scgdst;

650 27 a| Detonations.2| scgdst;

650 27 a| Igniters.2| scgdst;

650 27 a| Pyrotechnics.2| scgdst;

650 27 a| Oscilloscopes.2| scgdst;

650 27 a| Thermochemistry.2| scgdst;

650 27 a| Voltage.2| scgdst;

650 27 a| Volume.2| scgdst;

650 27 a| Deflagration.2| scgdst;

650 27 a| Computer programs.2| scgdst;

650 27 a| Buffers.2| scgdst;

653 2 a| GAS RELEASE VALVES;

653 2 a| PROPELLANT CHARACTERIZATION;

700 1 a| Ritter, John.=| ^A946282;

700 1 a| Homan, Barrie E.?| UNAUTHORIZED;

710 2 a| U.S. Army Research Laboratory.=| ^A367731;

830 0 a| ARL-TR (Aberdeen Proving Ground, Md.) ; 5058.?| UNAUTHORIZED;

856 40 u| https://purl.fdlp.gov/GPO/LPS121179;

949 a| Click on web addressw| ASISh| JOYNER94;

998 a| 2276652;

998 a| u2276652;

596 a| 1;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 2276652-1001l| JNETm| JOYNERr| Ys| Yt| JNE1DOu| 5/18/2010x| EDOCUMENTz| JERESOURCE;

Upgrades to the closed bomb facility and measurement of propellant burning rate / Tyler Wagner, John Ritter, and Barrie E. Homan.

Author/creator	Wagner, Tyler
Other author	Ritter, John.
Other author	Homan, Barrie E.
Other author	U.S. Army Research Laboratory.
Format	Electronic
Publication Info	Aberdeen Proving Ground, MD : U.S. Army Research Laboratory, [2010]
Description	1 online resource (vi, 29 pages) : illustrations.
Supplemental Content	https://purl.fdlp.gov/GPO/LPS121179
Subjects	Solid propellants.

Series	ARL-TR ; 5058 ARL-TR (Aberdeen Proving Ground, Md.) ; 5058. UNAUTHORIZED
Abstract	Propellants are a class of materials designed to produce low molecular weight gases that can be used in guns, missiles, and pyrotechnics. The burn rate of a propellant is used to design such munitions systems. The preferred method for obtaining the burn rate is the constant volume closed bomb. The pressure-time history obtained in closed bomb experiments, coupled with a propellant's thermochemistry and geometry, is used to calculate the linear burn rate. The hardware and software previously used to record the data needed to calculate the linear burn rate were outdated. The software that controlled the closed bomb experiments required modification in order to integrate the command set of the new Agilent oscilloscope. The new program sends user-defined commands, reads data from an external voltage source, and arranges that data in the proper format for XLCB, the burn rate data reduction code written in house using Visual BASIC in Microsoft Excel. The new code improves efficiency by creating buffers, eliminating extraneous subroutines. The new software has been tested for accuracy against the previous program using a split signal and closed bomb tests. This report presents a brief overview of closed bomb testing, a detailed account of the program and programming process, and results confirming the accuracy of the new program.
General note	Title from title screen (viewed March 31, 2010).
General note	"January 2010."
Bibliography note	Includes bibliographical references (p. 12).
Access restriction	APPROVED FOR PUBLIC RELEASE.
Report note	Final; June-July 2009.
Issued in other form	Print version: Wagner, Tyler. Upgrades to the closed bomb facility and measurement of propellant burning rate. vi, 29 p.
GPO item number	0324-A-01 (online)
Govt. docs number	D 101.133:5058

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Upgrades to the closed bomb facility and measurement of propellant burning rate / Tyler Wagner, John Ritter, and Barrie E. Homan.

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