Justification of Ballast Tank Parameters of a Mоbile Berth for Timber Transshipment
DOI:
https://doi.org/10.37482/0536-1036-2022-1-143-154Keywords:
round timber, mobile berth, shipping, timber loading, ballast tanksAbstract
The use of a mobile small-sized berth, the design of which was proposed by the authors in the previous paper, significantly increases capacity and reduces the cost of timber transshipment. When towing the berth over large distances, its ballast tanks are empty, which ensures that draft and water resistance to movement are minimized. At the point of operation the leveling ballast tank is filled with water until the top surface of the berth is leveled. In this position, the berth is moved locally in case of significant changes of the water level in the reservoir. Due to manufacturability and minimization of the volume of the leveling tank, it is designed as a part of the inner space at the berth stern, separated by a vertical wall. The permutation ballast tank is filled with water to submerge the berth until it leans on the leveled coastal slope. Water is pumped out of the tank to make the berth float during its local permutations. In this case, a significant trim should not be allowed. The lower point of the longitudinal section of the permutation tank was provided at the intersection of the berth bottom and the vertical, which bisects the waterline upon completion of the alignment. Algorithms have been developed for determining the position of the vertical wall of the leveling tank and the position and shape of the walls of the permutation tank. The distance of the vertical wall from the lower point of the berth and the coordinates of the points of the profiles of the left curved and right walls of the permutation tank were determined for a conditional berth of unit height and width. The coordinates were used to derive empirical dependencies. The values of the calculated metacentric heights verified the longitudinal and transverse stability of the berth in all positions. Experimental validation on a physical model of the berth confirmed the correctness of the results. Transition to the correct dimensions of the longitudinal profile from the conditional is assumed with the proportions retained.
For citation: Posypanov S.V., Chuprakov V.O. Justification of Ballast Tank Parameters of a Mobile Berth for Timber Transshipment. Lesnoy Zhurnal [Russian Forestry Journal], 2022, no. 1, pp. 143–154. DOI: 10.37482/0536-1036-2022-1-143-154
Downloads
References
Войткунский Я.И., Фаддеев Ю.И., Федяевский К.К. Гидромеханика. Л.: Судостроение, 1982. 455 с. Voytkunskiy Ya.I., Faddeyev Yu.I., Fedyayevskiy K.K. Hydromechanics. Leningrad, Sudostroyeniye Publ., 1982. 455 p.
Войткунский Я.И., Иванов А.Н., Луговский В.В. и др. Справочник по теории корабля: В 3 т. Т. 1. Гидромеханика. Сопротивление движению судов. Судовые движители. Л.: Судостроение, 1985. 764 с. Voytkunskiy Ya.I., Ivanov A.N., Lugovskiy V.V. et al. Handbook of Ship Theory: In 3 Vol. Vol. 1. Hydromechanics. Ship Motion Resistance. Ship Propulsion Systems. Leningrad, Sudostroyeniye Publ., 1985. 764 p.
Голдстейн Г. Классическая механика. М.: Наука, 1975. 415 с. Goldstein H. Classical Mechanics. Translated from English. Moscow, Nauka Publ., 1975. 415 p.
Корпачев В.П. Теоретические основы водного транспорта леса. М.: Акад. естествознания, 2009. 236 с. Korpachev V.P. Theoretical Foundations of Waterborne Transportation of Timber. Moscow, Akademiya estestvoznaniya Publ., 2009. 236 p.
Лебедев Н.И. Лесосплавной флот. М.: МГУЛ , 2003. 205 с. Lebedev N.I. Timber Rafting Fleet. Moscow, MGUL Publ., 2003. 205 p.
Минаев А.Н., Беленов И.А., Козленков Н.И. Лесосплавной флот. М.: Экология, 1991. 272 с. Minayev A.N., Belenov I.A., Kozlenkov N.I. Timber Rafting Fleet. Moscow, Ekologiya Publ., 1991. 272 p.
Посыпанов С.В. Технологические схемы погрузки лесоматериалов на суда с использованием мобильного малогабаритного причала // Актуальные направления научных исследований ХХI века: теория и практика. 2015. Т. 3, № 2-2(13-2). С. 313–317. Posypanov S.V. Technological Schemes of Loading Timber on Ships with Use of the Mobile Small-Sized Berth. Aktual’nye napravlenia naucnyh issledovanij XXI veka: teoria i praktika [Current Directions of Scientific Research of the XXI Century: Theory and Practice], 2015, vol. 3, no. 2-2(13-2), pp. 313–317.
Посыпанов С.В., Чупраков В.О. Применение мобильных малогабаритных причалов при выгрузке круглых лесоматериалов из воды // Аллея Науки. 2018. Т. 5, № 6(22). С. 285–288. Posypanov S.V., Chuprakov V.O. The Use of Mobile Small-Sized Berths for Unloading Round Timber out of Water. Alleya nauki [Alley-Science], 2018, vol. 5, no. 6(22), pp. 285–288.
Суров Г.Я., Зунин Л.Н. Организация береговой сплотки. Архангельск: АГТУ , 2006. 75 с. Surov G.Ya., Zunin L.N. Organization of Coastal Rafting. Arkhangelsk, ASTU Publ., 2006. 75 p.
Суров Г.Я., Барабанов В.А., Рымашевский В.Л. Перевозки лесных грузов в судах внутреннего плавания. Архангельск: СА ФУ, 2010. 208 с. Surov G.Ya., Barabanov V.A., Rymashevskiy V.L. Timber Cargo Transportation in Inland Navigation Vessels. Arkhangelsk, NArFU Publ., 2010. 208 p.
Чупраков В.О., Посыпанов С.В. Результаты исследования взаимодействия мобильного малогабаритного причала с водной средой при его буксировке // Изв. СП бЛТА , 2020. Вып. 233. С. 152–165. Chuprakov V.O., Posypanov S.V. Research Findings of an Relocatable Small Size Pontoon Pier Interaction with the Aquatic Medium during Its Towing. Izvestia Sankt-Peterburgskoj Lesotehniceskoj Akademii [News of the Saint Petersburg State Forest Technical Academy], 2020, is. 233, pp. 152–165. DOI: https://doi.org/10.21266/2079-4304.2020.233.152-165
Чупраков В.О., Посыпанов С.В. Обоснование геометрических параметров мобильного малогабаритного причала для перевалки лесных грузов // Современные машины, оборудование и IT-решения лесопромышленного комплекса: теория и практика. Воронеж: ВГЛТУ им. Г.Ф. Морозова, 2021. С . 154–159. Chuprakov V.O., Posypanov S.V. Justification of Geometric Parameters of a Mobile Small-Sized Way for Transshipment of Timber Cargo. Materials of the All-Russian Scientific and Practical Conference “Modern Machines, Equipment and IT Solutions for Industrial Complex: Theory and Practice”. Voronezh, VSUFT Publ., 2021, pp. 154–159. DOI: https://doi.org/10.34220/MMEITSIC2021_154-159
Якшаров П.С. Малые стальные суда. Л.: Судостроение, 1986. 168 с. Yaksharov P.S. Small Steel Vessels. Leningrad, Sudostroyeniye Publ., 1986. 168 p.
Atkinson K.E. An Introduction to Numerical Analysis. New York, Wiley, 1989. 657 p.
Griffith A. SPSS for Dummies. Hoboken, NJ, Wiley, 2007. 360 p.
Kleinstreuer С. Modern Fluid Dynamics. Dordrecht, Springer, 2010. 620 p. DOI: https://doi.org/10.1007/978-1-4020-8670-0
Larsson L., Stern F., Visonneau M. Numerical Ship Hydrodynamics. Dordrecht, Springer, 2014. 318 p. DOI: https://doi.org/10.1007/978-94-007-7189-5
Riley K.F., Hobson M.P., Bence S.J. Mathematical Methods for Physics and Engineering. Cambridge, Cambridge University Press, 2006. 1359 p. DOI: https://doi.org/10.1017/CBO9780511810763
Symon K.R. Mechanics. Addison-Wesley, 1971. 639 p.
Weisberg S. Applied Linear Regression. Hoboken, NJ, Wiley, 2005. 329 p. DOI: https://doi.org/10.1002/0471704091
