UNIVERSAL SOFTWARE PLATFORM FOR SIMULATION MODELING OF WARFARE

Replacing part of full-scale tests of weapons and military equipment with imitation experiments is highly relevant, since it allows saving substantial material and technical resources, reducing development time, and in some cases carrying out virtual tests, the full‑scale analogue of which cannot be done. In the Almaz-Antey Corporation, a simulation system is built, consisting of a simulation platform and particular simulation models that represent the forces and means of aerospace defense and aerospace attack. The paper presents the basic principles and results of the creation of a universal software platform for simulation modeling of combat operations based on the HLA IEEE‑1516 technology. These principles and approaches partly follow from the IEEE-1516 standard itself, while others are original technical solutions. The platform is based on the principles of openness, scalability, distributed computing. The composition and features of particular models are not considered in the work.

Download Full-text

Process simulation modeling of phytophagans' influence on the yield of seed fruit crops

Plant Biology and Horticulture: theory, innovation ◽

10.36305/2019-2-151-138-143 ◽

2019 ◽

pp. 138-143

Author(s):

V. A. Shishkin ◽

E. P. Rybalkin ◽

E. B. Balykina

Keyword(s):

Process Simulation ◽

Simulation Modeling ◽

Software Package ◽

Development Process ◽

Simulation Models ◽

Vegetation Period ◽

Fruit Crops ◽

Generational Change ◽

Apple Trees ◽

Nonlinear Characteristics

Simulation modeling of phytophagans’ influence on the yield of seed fruit crops, in particular apple trees, was carried out. By means of simulation models the importance of phytophagans’ influence at different stages of the vegetation period and the period of fruit ripening was revealed. The software package Matlab was used to build simulation models. As a result, simulation models with nonlinear characteristics were obtained, which maximally reflected the studied processes. The developed models imitate the process of phytophagans’ development. Generation change of pests and all stages of their development are simulated. Their respective numbers are recorded at each stage for all generations. The development process at each stage is modeled by separate subsystems of the simulation model. To simulate the development of one generation of pests, these subsystems are connected by external links. In addition, part of the relationships provides a simulation of generational change. There are a number of input parameters that allow to configure the simulation of the process of changing generations, taking into account the peculiarities of the development of various phytophagans.

Download Full-text

Full Scale Tests of Water Mist Fire Suppression Systems for Navy Shipboard Machinery Spaces. Part 2. Obstructed Spaces.

10.21236/ada306668 ◽

1996 ◽

Cited By ~ 9

Author(s):

G. G. Back ◽

P. J. DiNenno ◽

Joseph T. Leonard ◽

R. L. Darwin

Keyword(s):

Fire Suppression ◽

Water Mist ◽

Full Scale ◽

Full Scale Tests ◽

Suppression Systems

Download Full-text

Full-scale tests on smoke temperature distribution in long-large subway tunnels with longitudinal mechanical ventilation

Tunnelling and Underground Space Technology ◽

10.1016/j.tust.2020.103784 ◽

2021 ◽

Vol 109 ◽

pp. 103784

Author(s):

Congling Shi ◽

Jian Li ◽

Xuan Xu

Keyword(s):

Mechanical Ventilation ◽

Temperature Distribution ◽

Full Scale ◽

Full Scale Tests ◽

Subway Tunnels

Download Full-text

Investigation of planing craft maneuverability using full-scale tests

Proceedings of the Institution of Mechanical Engineers Part M Journal of Engineering for the Maritime Environment ◽

10.1177/14750902211030386 ◽

2021 ◽

pp. 147509022110303

Author(s):

Kazem Sadati ◽

Hamid Zeraatgar ◽

Aliasghar Moghaddas

Keyword(s):

Full Scale ◽

Performance Characteristics ◽

Forward Speed ◽

Speed Reduction ◽

Planing Craft ◽

Full Scale Tests ◽

Turning Maneuver

Maneuverability of planing craft is a complicated hydrodynamic subject that needs more studies to comprehend its characteristics. Planing craft drivers follow a common practice for maneuver of the craft that is fundamentally different from ship’s standards. In situ full-scale tests are normally necessary to understand the maneuverability characteristics of planing craft. In this paper, a study has been conducted to illustrate maneuverability characteristics of planing craft by full-scale tests. Accelerating and turning maneuver tests are conducted on two cases at different forward speeds and rudder angles. In each test, dynamic trim, trajectory, speed, roll of the craft are recorded. The tests are performed in planing mode, semi-planing mode, and transition between planing mode to semi-planing mode to study the effects of the craft forward speed and consequently running attitude on the maneuverability. Analysis of the data reveals that the Steady Turning Diameter (STD) of the planing craft may be as large as 40 L, while it rarely goes beyond 5 L for ships. Results also show that a turning maneuver starting at planing mode might end in semi-planing mode. This transition can remarkably improve the performance characteristics of the planing craft’s maneuverability. Therefore, an alternative practice is proposed instead of the classic turning maneuver. In this practice, the craft traveling in the planing mode is transitioned to the semi-planing mode by forward speed reduction first, and then the turning maneuver is executed.

Download Full-text