The effect of sabot front borerider stiffness on the launch dynamicsof fin-stabilized kinetic energy ammunition

Plostins, Peter; Celmins, Ilmars; Bornstein, J.; Diebler, J. E.

doi:10.2514/6.1990-66

Cited by 10 publications

(6 citation statements)

References 1 publication

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“…The experimental results utilized the jump and dispersion models that are defined in reference [3]. The means of major angular components of jump and dispersion are displayed in Fig.…”

Section: Resultsmentioning

confidence: 99%

Dispersion Analysis of the XM881APFSDS Projectile

Erline

Patton

Hathaway

2001

Shock and Vibration

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This study compares the results of a dispersion test with mathematical modeling. A 10-round group of modified 25-mm XM881 Armor Piercing Fin Stabilized Discarding Sabot projectiles was fired from the M242 chain gun into a designated target. The mathematical modeling results come from BALANS, a product of Arrow Tech Associates. BALANS is a finite-element lumped parameter code that has the capability to model a flexible projectile being fired from a flexible gun. It also has the unique feature of an automated statistical evaluation of dispersion. This study represents an effort to evaluate a simulation approach with experiment.

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“…The experimental results utilized the jump and dispersion models that are defined in reference [3]. The means of major angular components of jump and dispersion are displayed in Fig.…”

Section: Resultsmentioning

confidence: 99%

Dispersion Analysis of the XM881APFSDS Projectile

Erline

Patton

Hathaway

2001

Shock and Vibration

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“…The jump closure model, shown in Figure 2, follows that which has been presented in previous jump tests (1,5). In addition, the total CG (CGtot) is defined as the sum of the PA, CV, and CG vectors.…”

Section: Jump Modelmentioning

confidence: 99%

“…The AJ vector is closely related to the projectile angular rate at muzzle exit.Guidos and Cooper (8) used a linear impulse model to generalize the expression given by Murphy (P) that relates projectile angular rate at the muzzle and aerodynamic jump. For application to a KE projectile with sabot discard, the expression can be approximated and written in complex coordinates (the transformation between complex coordinates and range coordinates, consistent with that used by Guidos and Cooper[5]…”

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confidence: 99%

Validation of the U.S. Army Research Laboratory's Gun Dynamics Simulation Codes for Prototype Kinetic Energy

Newill¹,

Guidos²,

Livecchia³

2003

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“…The jump diagrams are based upon a jump closure model that characterizes the launch and flight aspects of a projectile, in addition to providing a basis for statistical analysis of the entire set of rounds. The jump model has been presented along with the analysis techniques in reports by Bornstein et al ( ,1989 and Plostins, Celmins, and Bornstein (1990) and is briefly reviewed here.…”

Section: Definitions Of Jump Componentsmentioning

confidence: 99%

Flat fire jump performance of a 155-mm M198 howitzer

Garner

Guidos

Soencksen

et al. 2000

38th Aerospace Sciences Meeting and Exhibit

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A jump experiment and analysis were performed for the Ml 98 howitzer firing the Ml07 shell through short range, flat fire trajectories with a launch Mach number near 1.7. The objective was to characterize the jump performance of the system and provide a basis for identifying and possibly improving the largest contributors to jump over a broader range of firing conditions. For the short range, flat fire scenario of the present experiment, the jump performance of the system indicates that the center of gravity (CG) motion of the projectile as it exits the gun tube is a significantly larger contributor to dispersion than the aerodynamic jump. The data showed that the projectile CG motion relative to the muzzle itself is considerable and is a more dominant component of in-bore balloting in terms of dispersion compared to the in-bore angular motion. Measurements of the gun dymamics showed that while the large scale muzzle motion is more pronounced in the vertical plane than in the horizontal plane, the dispersion directly attributable to muzzle pointing angle and muzzle crossing velocity is about the same in the both directions. Measurements of muzzle velocity, drag, and yaw are also presented and can be used to determine the effect of jump components not directly measured here but important for longer ranges.

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The effect of sabot front borerider stiffness on the launch dynamicsof fin-stabilized kinetic energy ammunition

Cited by 10 publications

References 1 publication

Dispersion Analysis of the XM881APFSDS Projectile

Dispersion Analysis of the XM881APFSDS Projectile

Validation of the U.S. Army Research Laboratory's Gun Dynamics Simulation Codes for Prototype Kinetic Energy

Flat fire jump performance of a 155-mm M198 howitzer

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