By C. A. Brebbia, A. A. Motta
Protecting a vast scope of issues relating to ballistics, this publication comprises papers awarded on the 3rd foreign convention on Computational Ballistics, held June 6-8, 2007, within the New wooded area, united kingdom. Ballistics, as a technology, has a large which means and is found in many elements of our daily lives. Terminal ballistics, possibly its most crucial department, makes a speciality of the research of the interplay among the munition and aim and has many civilian functions, corresponding to in vehicle crashes and chook moves on plane, and the resultant results. This comprises the research of effect, total and microscopic structural resistance and behaviour, and integrity.The papers conceal Fluid movement aerodynamics; inside ballistics; Terminal ballistics; Experimental mechanics/ballistics and box checking out; New advancements in computational options; and structures and expertise.
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Extra info for Computational Ballistics III
Figure 7: 4 Aerodynamic forces exerted on sabot structure. Summary An insight into the transient sabots separation processes was provided in this paper via a detailed finite element model, representing the sabot and penetrator, subjected to a free stream flow field. The model was prepared using exact geometric part features, which include the buttress groove details on both the sabot and penetrator. It was written in the FSI numerical package of MSC - DYTRAN and utilizes an Euler Lagrange coupling to correlate the unsteady aerodynamic forces and the sabots’ rigid body motions.
Numerical Simulation of Sabot Discard Aerodynamics, Army Research Laboratory ARL-TR-204 September 1993. com, ISSN 1743-355X (on-line) This page intentionally left blank Computational Ballistics III 21 Fast calculation of direct fire trajectories taking the earth’s rotation into account W. Roetzel1, W. Czarnetzki2 & T. Maier2 1 Helmut-Schmidt-Universität / Universität der Bundeswehr Hamburg, Germany 2 Hochschule Esslingen, Germany Abstract An analytical approach is developed for the subsequent consideration of the Coriolis effect.
2 and 4]. The programme is constructed in such a way that for a given target (x1, y1) or (L1, β) and wind velocity (wx, wy, wz) the angle of lead and the gun elevation angle above line of sight is calculated iteratively. The extended programme has been tested against numerical calculations described in chapter 2 of this paper. Four typical examples are presented in the following. 4286 (eq. (1)). 25 mbar and t0 = 15° C. 292 . 10-5 rad/s . 73. 6 s. Table 1 shows calculated Coriolis deflections for flat fire from the north pole and the equator.