Scholarly record
COMPARING APPROACHES OF CALCULATING SOIL PRESSURE OF FORESTRY MACHINES
Abstract
The aim of the article is studying relationships of soil pressure of forestry machines, determined within different methods. Research methods include computing experiment and calculated data processing. The article analyzes three different methods for calculating the soil pressure, including analytical method for calculating average contact pressure, method for calculating the pressure on a rigid surface, and nominal ground pressure method. Basing on the computing experiment results, the study establishes linear relationships between the pressure numeric within the three methods. Values of coefficients of the linear functions are determined according the rover parameters (wheel width and wheel diameter, tire pressure, wheel load) and mechanical properties of the soil. In particular, processing of the calculated data shows that nominal ground pressure on bearing soil is lower in its value than pressure of the same rover on rigid surface; the difference is in range of 40-50 kPa. Furthermore, analytical average pressure is close in value to the nominal pressure in cases where the wheel load is in range of 10?20 kN; at higher values of the load, the average pressure is approximately twice less in value than the nominal ground pressure. In particular, processing of the calculated data shows that nominal ground pressure is lower in its value than pressure of the same rover on rigid surface; the difference is in range of 40-50 kPa. Furthermore, analytical average pressure is close in value to the nominal pressure in cases where the wheel load is in range of 10?20 kN; at higher values of the load, the average pressure is approximately twice less in value than the nominal ground pressure.
Publication Impact Profile
Publication details
References12
Khakhina A.M. Metody prognozirovaniya i povysheniya prokhodimosti kolesnykh lesnykh mashin (Methods of forecasting and improving passability of wheeled forest machines). Arkhangelsk, Russia, 2018, 318 p. (In Russian)
Khitrov E.G., Khakhina A.M., Dmitrieva M.N., Peskov V.B., Grigor'eva O.I. Utochnennaya model' dlya ocenki tyagovo-scepnykh svojstv kolesnogo dvizhitelya lesnoj mashiny (Refined model for assessing the tractive characteristics of the wheeled rover of forest machines). Izvestiya Sankt-Peterburgskoj lesotekhnicheskoj akademii. Saint-Petersburg, Russia, Issue 217, pp. 108-119, 2016. (In Russian)
Bekker M.G. Introduction to Terrain-Vehicle Systems. The University of Michigan Press: Ann Arbor, 1969. 560 p.
Saarilahti M. Development of a protocol for ecoefficient wood harvesting on sensitive sites (Ecowood). Dynamic terrain classification». Finland, University of Helsinki, Department of Forest Resource Management, 2002. 22 p.
Saarilahti M. Development of a protocol for ecoefficient wood harvesting on sensitive sites (Ecowood). Soil interaction model». Finland, University of Helsinki, Department of Forest Resource Management, 2002. 39 p.
Wong J.Y. Terramechanics and Off-Road Vehicle Engineering: Terrain Behaviour Off-Road Vehicle Performance and Design, Elsevier second edition, 2010.
Wong J.Y. Theory of Ground Vehicles. John Wiley and Sons, New Jersey, fourth edition, 2008.
Agejkin Ya.S. Prokhodimost' avtomobilej (Passability of cars). Moscow, Russia, 1981, 232 p. (In Russian)
Anisimov G.M., Bol'shakov B.M. Novye koncepcii teorii lesosechnykh mashin (New concepts of the theory of logging machines). Saint-Petersburg, Russia, 1998. 114 p. (In Russian)
Anisimov G.M., Bol'shakov B.M. Osnovy minimizacii uplotneniya pochvy trelevochnymi sistemami (Basics of minimizing soil compaction caused by skidding systems). Saint-Petersburg, Russia, 1998. 106 p. (In Russian)
Peskov V.B. Sovershenstvovanie modelej dlya ocenki koleeobrazovaniya i uplotneniya pochvogruntov pod vozdejstviem dvizhitelej kolesnykh lesnykh mashin (Improvement of models for the assessment of groove and soil compaction under the influence of rovers of wheeled forest machines). Arkhangelsk, Russia, 2018, 190 p. (In Russian)
Blend D. Teoriya linejnoj vyazko-uprugosti (Theory of linear visco-elasticity). Moscow, Russia, 1965. 200 p. (In Russian)
Citing literature
Number of times cited according to Crossref: 4
View or Download full articleAccess options
SWS access login
Login as SWS Scientific CommitteeLogin as SWS Scientific PartnerLogin as SWS AuthorAuthors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.
For librarian assistance: [email protected]
Purchase Instant Access
- Article can be downloaded after successful payment.
- Article may be used according to SWS library access terms.
- Article cannot be redistributed.
