Development of a geometric model of a new method for delivering extinguishing substances to a distant fire zone
| Autor: | Leonid Kutsenko, Volodymyr Vanin, Andrii Naidysh, Sergii Nazarenko, Andrii Kalynovskyi, Andrii Cherniavskyi, Olga Shoman, Victoria Semenova-Kulish, Oleksandr Polivanov, Elizaveta Sivak |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Computer science
020209 energy Compressed air dumbbell-shaped container 0211 other engineering and technologies Energy Engineering and Power Technology Mechanical engineering 02 engineering and technology Turbine Industrial and Manufacturing Engineering geometric modeling Management of Technology and Innovation lcsh:Technology (General) rotational-translational motion of the container 021105 building & construction 0202 electrical engineering electronic engineering information engineering lcsh:Industry Cylinder Electrical and Electronic Engineering Lagrange equation of the second kind Applied Mathematics Mechanical Engineering Rotation around a fixed axis Computer Science Applications Control and Systems Engineering Drag Container (abstract data type) lcsh:T1-995 lcsh:HD2321-4730.9 Dumbbell Gun barrel |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 4, Iss 7 (106), Pp 88-102 (2020) |
| ISSN: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2020.209382 |
| Popis: | A geometric model of a new method of delivering fire-extinguishing substances to a fire zone located at a considerable distance was offered. The idea of delivery is based on the mechanical action of throwing. To this end, a substance (e.g. extinguishing powder) is loaded in a hard shell made as a special container. After delivery by means of a launcher to a fire zone, the container has to release the substance which will promote fire extinguishing. The known method of remote delivery of extinguishing substances uses a pneumatic gun with a cylindrical container. During delivery, the cylinder must rotate around its axis to ensure flight stability. The cylinder is rotated by a special turbine when passing through the gun barrel. There are difficulties in regulating the distribution of compressed air flows during the turbine operation. In addition, the tightness of the pneumatic part of the gun should be monitored. The new delivery method uses a container in a form of two spaced loads similar to a sports dumbbell. The dumbbell motion is initiated by simultaneous action of explosion-generated pulses directed at each of its loads in a pre-calculated manner. This results in the rotational motion of the container. To describe the dynamics of the dumbbell motion, a Lagrangian was defined and a system of Lagrange differential equations of thesecond kind was set up and solved. Examples of modeling trajectories of the centers of masses of the dumbbell loads taking into account air resistance were given. The proposed method is planned to be a basis of a new fire extinguishing technology. This is evidenced by the new scheme of launching the dumbbell by means of explosion-generated pulses of charges of two pyro cartridges. The obtained results make it possible to estimate magnitudes of explosion-generated pulses necessary for throwing and corresponding distances of the dumbbell delivery |
| Databáze: | OpenAIRE |
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