Results 211 to 220 of about 7,742 (253)

Reduced Order Method Applied to Optimization of External Ballistics

Volume 5: Dynamics, Vibration, and Control
Abstract This study explores the application of Reduced Order Methods (ROM) in external ballistics, a domain traditionally less focused on than terminal ballistics. The primary objective is to evaluate the effectiveness of ROM in decreasing computational times during the design of modern Direct Fire Control Systems (DFCS).
Jean-Michel Dhainaut
exaly   +2 more sources

External Ballistics and Cartridge Loadings

2004
exaly   +3 more sources

External ballistic of volcanic explosions [PDF]

Bulletin Volcanologique, 1983
In order to determine the kinetic energy of an explosion it is necessary to know the initial velocities of ejected fragments. Calculations of initial velocities made earlier with few exceptions did not take into account the resistance of the air and therefore, greatly underestimated the initial velocities, and consequently the energy of the explosions.
Steinberg G.S., Lorenz V.
openaire   +1 more source

Uncertainty Analysis and Sensitivity Estimation on an Artillery External Ballistic System

Journal of Mechanical Design, 2022
Abstract In the design of artillery external ballistics, sensitivity analysis can effectively quantify the influence of multi-source uncertain parameters on the dispersion of projectile landing points to improve the precise attack ability of artillery.
Nichen Tong, Qiming Liu, Xu Han, Xingfu Wu, Zheyi Zhang   +4 more
openaire   +1 more source

The development and introduction of ballistic protection of the external genitalia and perineum

Journal of the Royal Army Medical Corps, 2013
In response to an Urgent Operational Requirement, the UK Ministry of Defence (MoD) investigated, designed, developed, trialled and subsequently fielded a Tiered Pelvic Protection System to service personnel deployed on Operation HERRICK in Afghanistan.
Eluned A, Lewis, M A, Pigott, A, Randall, A E, Hepper   +3 more
openaire   +2 more sources

External Ballistics of Powder under Detonation Spraying

International Thermal Spray Conference, 2009
Abstract This study investigates the influence of spraying distance and substrate orientation on the formation of metallic coatings by detonation spraying. Deposition efficiency was determined for aluminum, copper, titanium, and steel powders sprayed at different distances on substrates oriented at different angles. The results show that
V. Ulianitsky, A. Shtertser, D. Pervushin, I. Smurov   +3 more
openaire   +1 more source

Influence of Silencer Use on External Ballistics of Projectiles

30th International Symposium on Ballistics, 2017
The following article is a summary of the first step of research on behavior of sniper rifles in calibers .308 Winchester, .300 Winchester Magnum and .338 Lapua Magnum with and without sound suppressor. The paper includes measurements of chosen external ballistics parameters like velocity and accuracy at 300 m (328 yd) with the use of state of the art ...
BARTOSZ KOZERA, JAROSLAW BRZUZY
openaire   +1 more source

A MODIFIED MODEL OF EXTERNAL BALLISTICS FOR SUPERSONIC MORTAR PROJECTILES

PROBLEMY TECHNIKI UZBROJENIA, 2018
Basic models applied for analysing and modelling the flight parameters of projectiles were disscussed in the article. A modified model with five degrees of freedom and neglection of the sixth one, representing the projectile rotation speed, is proposed by authors on the basis of conducted analysis to analyse flight parameters of a supersonic mortar ...
Mariusz Magier, Tomasz Merda
openaire   +1 more source

An External Ballistics Fitting Method Based on the Support Vector Machine

Advanced Materials Research, 2013
It is because of many reasons the trajectory calculated from the theoretical model and the actual trajectory have some error, so the experimental results on the theoretical trajectory must be corrected. In this paper, two degrees of freedom of particle trajectory equations are used to determine the ballistic coefficient.
Zhong Liu, Jing Xin An, Guo Dong Zhang
openaire   +1 more source

Influence of External Factors on the Cutting Load and Puncture Force for Ballistic Fabrics

Fibre Chemistry, 2020
Effects of the moisture content, indenter speed and the number of layers of para-aramid fabrics on the puncture force and cutting load were studied. The relationship between the cutting load and the puncture force is determined.
Ya. I. Bulanov, A. V. Kurdenkova, Yu. S. Shustov   +2 more
openaire   +1 more source