Scientific Journal Problems of Emergency Situations - L. Kutsenko, A. Kalynovskyi, O. Kireev, B. Kryvoshei, O. Sukharkova. Development of a method for remote delivery of extinguishing composition in a container shaped like a dumbbell. P. 41-57.

A geometric model of a new method of delivering extinguishing agents to the fire zone is proposed. The delivery idea is based on a mechanical throwing operation. For this, the substance is placed in a hard shell - a special container. After being delivered to the fire site by means of the launching device, the container must collapse and release a substance that will contribute to extinguishing the fire. New in the proposed method of delivery is the use of two weights spaced at a certain distance, connected by a rod. This modernization made it possible to abandon the traditional cylindrical containers and the use of air guns as launching devices. After all, the disadvantage of the "cannon" fire extinguishing technology lies in the difficulty of imparting axial rotation to the cylindrical container to ensure the stability of its movement. In the proposed method of delivery, the initiation of the movement of the dumbbell-container is carried out using a special launching device. It provides the simultaneous action of two explosive impulses directed at the centers of mass of each dumbbell weight in a pre-calculated manner. As a result of the start, the dumbbell acquires a rotational-translational movement in the vertical plane. To describe the dynamics of the dumbbell movement, a Lagrangian was determined, and a system of Lagrange differential equations of the second kind was compiled and solved. Examples of modeling the trajectories of the centers of mass of the dumbbell weights in the vertical plane are given. The main advantages of the new method include the possibility of separate delivery of extinguishing agents to the fire zone. Since there are substances for which the fire extinguishing effect is significantly increased as a result of their mixing directly in the combustion zone. Therefore, it is advisable to use the proposed delivery method as the basis for a new fire extinguishing technology.

References

These 3 inventions make it possible for firefighters to extinguish fires without getting close to the flames (2018). Jasmine Kim and Adrian Traviezo Nov 19, 2018. Retrieved from https://www.businessinsider.com/firefighting-technology-thatextinguishes-flames-without-getting-close-2018-9
Kovalev, A. A., Kalynovskyy, A. Ya., Khmyrov, Y. M. (2018). Razrabotka otdelʹnykh aspektov konteynernoho metoda pozharotushenyya Problemy pozharnoy bezopasnosty. Sbornyk nauchnykh trudov. Kharʹkov, 44, 57–69. Retrieved from http://nbuv.gov.ua/UJRN/Ppb_2018_44_11
Kutsenko, L., Vanin, V., Naidysh, A., Nazarenko, S., Kalynovskyi, A., Cherniavskyi, A., Shoman, O., Semenova-Kulish, V., Polivanov, O., Sivak, E. (2020). Development of a geometric model of a new method for delivering extinguishing substances to a distant fire zone. Eastern-European Journal of Enterprise Technologies, 4 (7 (106), 88–102. doi: 10.15587/1729-4061.2020.209382
Saveliev, D., Khrystych, O., Kirieiev, O., Chyrkina, M. (2020). Binary fireextinguishing systems with separate application as the most relevant systems of forest fire suppression // European Journal of Technical and Natural Science, 1, 31–36. Retrieved from http://repositsc.nuczu.edu.ua/handle/123456789/7121
Pyetukhov, R. A., Kiryeyev, O. O., Slepuzhnikov, Ye. D. (2019). Doslidzhennya chasu vtraty tekuchosti heleutvoryuyuchykh system Na2O∙2,5SiO2+NH4Cl ta Na2O∙2,5SiO2+(NH4)2SO4, yaki zaproponovano vykorystovuvaty dlya oderzhannya izolyuyuchykh pin // Problemy nadzvychaynykh sytuatsiy, 30, 155–163. Retrieved from http://repositsc.nuczu.edu.ua/handle/123456789/10606
Tsarev, A. M., Zhuykov, D. A. (2007). Mekhanika deystviya perspektivnykh ognetushashchikh sostavov v ustanovkakh pozharotusheniya stvolovogo tipa konteynernoy dostavki metodom metaniya // Izvestiya Samarskogo nauchnogo tsentra RAN, 9, 3, 771–785. Retrieved from https://cyberleninka.ru/article/n/mehanika-deystviyaperspektivnyh-ognetushaschih-sostavov-v-ustanovkah-pozharotusheniya-stvolovogotipa-konteynernoy-dostavki-metodom
Tsarev, A. M., Zhuykov, D. A. (2007). Voprosy vneshney ballistiki poleta konteynera dlya dostavki ognetushashchikh sostavov v konteynerakh metodom metaniya s primeneniyem ustanovok pozharotusheniya stvolovogo tipa // Izvestiya Samarskogo nauchnogo tsentra RAN, 9, 3, 786–795. Retrieved from https://cyberleninka.ru/article/n/voprosy-vneshney-ballistiki-poleta-konteynera-dlyadostavki-ognetushaschih-sostavov-v-konteynerah-metodom-metaniya-s-primeneniem
Zahalʹni teoremy dynamiky ta elementy analitychnoyi mekhaniky: konspekt lektsiy dlya studentiv mekhaniko-mashynobudivnoho instytutu napryamiv pidhotovky 6.050502 «Inzhenerna mekhanika» ta 6.050503 «Mashynobuduvannya» dlya vsikh form navchannya / NTUU «KPI», uklad. O. A. Babayev, V. F. Kryshtalʹ. tekstovi dani (1 fayl: 2,22 Mbayt). Kyyiv: NTUU «KPI», 2015, 82. Retrieved from https://ela.kpi.ua/handle/123456789/17661
Yegorov, A. D., Potapova, I. A. (2020). Teorema Koniga: Prostoy primer.doi: 10.13140/RG.2.2.36728.39684
Rouben Rostamian A Guided Tour of Analytical Mechanics with animations in MAPLE. (2018). Department of Mathematics and Statistics UMBC December 2, 111. Retrieved from https://userpages.umbc.edu/~rostamia/2014-09-math490/lecture-notes.pdf
Rouben Rostamian MATH 490: Special Topics in Mathematics Analytical Mechanics Math 490, Fall (2018). 7. Retrieved from https://userpages.umbc.edu/~rostamia/2018-09-math490/
Modern Robotics Course Notes. Chapter 8: Dynamics of Open Chains (2021). Retrieved from https://muchensun.github.io/ModernRoboticsCourseNotes/ch8.html 13. David, P. Murdock. Rotation of an Object About a Fixed Axis 2013. Retrieved from https://www2.tntech.edu/leap/murdock/books/v2chap1.pdf
Kutsenko, L. M., Kalynovsʹkyy, A. Ya., Polivanov, O. H. (2020). Animatsiyni ilyustratsiyi do statti «Kompʺyuterne modelyuvannya novoyi tekhnolohiyi viddalenoyi do-stavky zasobiv hasinnya pozhezh». Retrieved from http://repositsc.nuczu.edu.ua/handle/123456789/10860
Dvizheniye tela, broshennogo pod uglom k gorizontu. Zakony podobiya. (2020). Retrieved from https://lawbooks.news/informatika_961/dvijenie-telabroshennogo-pod-uglom-gorizontu-69582.html
Dvizheniye tela v pole tyazhesti s uchotom soprotivleniya vozdukha. (2020). Retrieved from https://glebgrenkin.blogspot.com/2014/03/blog-post.html
Snub dodecahedron From Wikipedia, the free encyclopedia. Retrieved from https://en.wikipedia.org/wiki/Snub_dodecahedron
Instructables craft. Making a Snub Dodecahedron. Retrieved from https://www.instructables.com/Making-a-Snub-Dodecahedron
Deleanu, D. Theoretical Mechanics. Theory and Applications. (2012). Constan Ńa: Nautica, 299. doi: 10.13140/RG.2.1.1786.1842
Parabolic Motion of Projectiles. The Physics Classroom. Retrieved from https://www.physicsclassroom.com/mmedia/vectors/bds.cfm
Nastroyky smartfona. Huawei Devices. (2020). Retrieved from https://huaweidevices.ru/katalog/inzenernoe-menyu-onor-i-uaei-kak-zayti-kodynastroyka-i-kalibrovka-smartfona