Investigation of Cargo Suspension Oscillations of the Timber-Hauling Aerial Logging System

Complete text of the article:

Download article (pdf, 0.8MB )

UDС

634.0.372:628.733.34

DOI:

10.17238/issn0536-1036.2018.3.103

Abstract

One of the main factors constraining the increase in logging volumes in the Far Eastern Federal District in the steep terrain is the complexity of the technological process for primary wood transportation from the point of harvesting to the place of storage and loading. About 30 % of forest areas with a high quality and mature forest stand are located on slopes with the ratio over 20˚, where traditional technology is either unable to harvest timber, or performs it with high costs and with clear ecological disturbance. The experience of the use of balloon systems of timber transportation has proved their technological and silvicultural efficiency. However, the method of selective removal of separately growing trees requires additional and comprehensive research, since it is associated with the structural and technological features of balloon systems, primarily with the functioning of a cargo suspension with a gripping mechanism. The paper presents the results of practical and theoretical studies of the oscillation process occurring in the cargo suspension of a trilinear aerial skidding system designed for vertical harvesting of trees with their subsequent transportation. A mathematical model describing the equilibrium of the point of joining of the aerial skidding system and its movement under arbitrary loads is developed. The dependence obtained allows determining the vibration parameters of three interconnected points of the system cargo suspension under various operating conditions and at any given time. The calculated values of parameters of the oscillating process of the cargo suspension and the deviations of the load gripping mechanism from the point of tree getting, allow undertaking the design of technical parameters of load gripping and winch mechanisms intended for the air transportation of timber very accurately. On the basis of the obtained results, technological and constructive features of aerial skidding systems can be used in selective logging more efficiently.

Authors

A.V. Abuzov, Doctor of Engineering Sciences, Professor 
P.B. Ryabukhin, Doctor of Engineering Sciences, Professor 

Affiliation

Pacific National University, ul. Tikhookeanskaya, 136, Khabarovsk, 680042, Russian Federation; e-mail: ac-systems@mail.ru, PRyabukhin@mail.khstu.ru

Keywords

aerial logging, aerial skidding system, hauling cable oscillation and tension, oscillation process simulation

For citation

Abuzov A.V., Ryabukhin P.B. Investigation of Cargo Suspension Oscillations of the Timber-Hauling Aerial Logging System. Lesnoy zhurnal [Forestry journal], 2018, no. 3, pp. 103–116. DOI: 10.17238/issn0536-1036.2018.3.103

References

1. Abuzov A.V. Agroekologiya: formirovanie lesozagotovitel'nykh operatsiy s uchetom ekologicheskikh trebovaniy [Agroecology: the Formation of Ecologically Based Timber-Harvesting Operations]. Inzhenernaya ekologiya [Engineering Ecology], 2012, no. 1(103), pp. 24–30. 
2. Abuzov A.V. Tekhnicheskie i konstruktivnye osobennosti sovremennoy aerostatno-kanatnoy sistemy dlya trelevki drevesiny [Technical and Design Features of the Modern Aero Stately Rope System of Delivery of Wood]. Lesnoy vestnik [Forestry Bulletin], 2013, no. 1(93), pp. 5–9. 
3. Abuzov A.V. Matematicheskoe modelirovanie osnovnykh parametrov aerostatno-kanatnoy sistemy dlya trelevki drevesiny AKS-5 [Mathematical Modelling of the Key Parameters of Aerial Skidding System AKS-5]. Sistemy. Metody. Tekhnologii [Systems. Methods. Technologies], 2014, no. 2(22), pp. 136–140. 
4. Abuzov A.V. Metodika opredeleniya usiliy, voznikayushchikh v kanatakh trekhlineynoy aerostatno-kanatnoy transportnoy sistemy [Method of Determining the Forces Arising in the Ropes of Trilinear Balloon-Cable Transport System]. Lesotekhnicheskiy zhurnal [Forestry Engineering Journal], 2014, vol. 4, no. 3(15), pp. 140–153. 
5. Abuzov A.V., Bernotas R.V. Osobennosti lesozagotovitel'nogo protsessa pri vertikal'nom iz"yatii i transportirovke derev'ev vozdushnym sposobom [Features of the Logging Process with Vertical Extraction and Transportation of Trees by Air]. Filosofiya sovremennogo prirodopol'zovaniya v basseyne reki Amur: sb. dokl. mezhdunar. ekol. seminara, Khabarovsk, 6–8 maya 2015 g. [Philosophy of Modern Nature Management in the Amur River Basin: Proc. Intern. Ecological Workshop, Khabarovsk, May 6‒8, 2015]. Ed. by P.B. Ryabukhin. Khabarovsk, PNU Publ., 2015, pp. 67–70. (In Russ.) 
6. Abuzov A.V., Ryabukhin P.B. Aerostatnyy transport dlya gornykh lesozagotovok v usloviyakh Dal'nego Vostoka: monogr. [Aerostat Transport for Mountain Logging in the Far East]. Khabarovsk, PNU Publ., 2013. 199 p. (In Russ.) 
7. Goloskokov D.P. Uravneniya matematicheskoy fiziki. Reshenie zadach v sisteme Maple [Equations of Mathematical Physics. Problem-Solving in the Maple System]. Saint Petersburg, Piter Publ., 2004. 539 p. (In Russ.) 
8. Kozlovskiy V.B., Parshentsev S.A., Efimov V.V. Vertolet s gruzom na vneshney podveske [Helicopter with a Load on the External Suspension]. Ed. by V.B. Kozlovskiy. Moscow, Mashinostroenie / Mashinostroenie-Polet Publ., 2008. 304 p. (In Russ.) 
9. Svetlitskiy V.A. Mekhanika absolyutno gibkikh sterzhney [Mechanics of Absolutely Slender Columns]. Moscow, MAI Publ., 2001. 432 p. (In Russ.) 
10. Smirnov V.A. Visyachie mosty bol'shikh proletov [Cable Bridges of Large Spans]. Moscow, Vysshaya shkola Publ., 1970. 408 p. (In Russ.) 
11. Aglietti G.S. Dynamic Response of a High-Altitude Tethered Balloon System. Journal of Aircraft, 2009, vol. 46, no. 6, pp. 2032‒2041. 
12. Lambert C. Dynamics and Control of a Multi-Tethered Aerostat Positioning System. Monreal, Canada, 2006. 184 p. Available at: http://digitool.Library.McGill.CA: 80/R/-?func=dbin-jump-full&object_id=1029 94&silo_library=GEN01 (accessed 10.04.2018).
13. Lambert C., Nahon M. An Aerostat Positioning System with Cable Control. Proc. 17th World Congress of the Intern. Federation of Automatic Control. Seoul, Korea, July 6‒11, 2008. Seoul, Korea, 2008. 6 p. 
14. Monagan M.B., Geddes K.O., Heal K.M., Labahn G., Vorkoetter S.M., McCarron J., DeMarco P. Maple Introductory Programming Guide. Canada, Maplesoft, 2007. 387 p. 
15. Wiley J.A. Systems and Methods for Aerial Cabled Transportation. Patent US8205835B2, 2012.

Received on March 12, 2018