INFLUENCE OF MOVEMENT SURFACE SLOPE ON TRACTIVE AND TOW PERFORMANCES OF WHEELED RUNNING GEAR
Abstract and keywords
Abstract (English):
This article presents results of studies of the effect of movement surface slope on tractive and tow performance of wheeled forestry machine’s mover. Dependencies, which the mathematical model is based on, take into account the impact of direction deviations of the resultant load on soils from the gear from the normal, which reduces bearing capacity of the base and increases the deformation of soil and its resistance to machine movement. As a consequence, the model considers reductions of the mover’s tractive and tow performance.

Keywords:
rolling resistance coefficient, net thrust coefficient, coefficient of adhesion, slope angle of movement surface, wheeled gear
Text
Text (PDF): Read Download
References

1. Wong J.Y. Terramechanics and Off-Road Vehicle Engineering. Second Edition. Elsevier, Oxford, England, 488 pages, 2010.

2. Bekker M. Off-the-Road Locomotion: Research and Development in Terramechanics. University of Michigan Press, 1960, 472 p.

3. Saarilahti M. Development of a protocol for ecoefficient wood harvesting on sensitive sites (Ecowood). Evaluation of the WES-method in assessing the trafficability of terrain and the mobility of forest tractors. University of Helsinki, Department of Forest Resource Management, 2002, 28 p.

4. Khitrov E.G., Grigorev I.V., Khakhina A.M. Povyshenie jeffektivnosti trelevki obosnovaniem pokazatelej raboty lesnyh mashin pri operativnom kontrole svojstv pochvogrunta [Higher skidding productivity with in situ control of forest soil mechanical properties]. Saint-Petersburg, 2015, 146 p. (In Russian)

5. Wismer R.D., Luth, H. J. Off-road traction prediction for wheeled vehicles. Transaction ASAE 17(1), 1973. 8-10, 14 p.

6. Agejkin Ja.S. Vezdehodnye kolesnye i kombinirovannye dvizhiteli: teorija i raschet [Theory and calculation of wheeled vehicles]. Moscow, 1972, 184 p. (In Russian)

7. Ivanov V.A., Khahina A.M., Ustinov V.V., Korotkov R.K. Utochnennye zavisimosti dlja rascheta sdvigovoj deformacii lesnogo pochvogrunta po velichine buksovanija i parametram pjatna kontakta [Refined dependencies for evaluating forest soil shear deformation through sliding ratio and contact patch parameters] Sistemy. Metody. Tehnologii [Systems. Methods. Technologies]. 2015, no. 4 (28), pp. 116-120. (In Russian)

8. Khakhina A.M., Ustinov V.V. Vlijanie modulja deformacii na formu pjatna kontakta dvizhitelja s pochvogruntom [Dependence of contact area and deformation modulus of forest soil] Aktual'nye napravlenija nauchnyh issledovanij XXI veka: teorija i praktika [Current research trends of the XXI century: Theory and Practice]. 2015, Vol. 3, no 9-2 (20-2), pp. 287-290. (In Russian)

9. Khitrov E.G., Grigorev I.V., Makuev V.A., Khakhina A.M., Kalinin S.Ju. Model' dlja ocenki radial'noj deformacii kolesa lesnoj mashiny s uchetom deforma-cii pochvogrunta [Model to assess the tyre deflection of the wheeled forest machine regarding the forest soil strain] Vestnik MGUL -Lesnojvestnik [Herald MSFU - Forestry Gazette]. 2015, no. 6(19), pp. 87-90. (In Russian)

10. Saarilahti M. Development of a protocol for ecoefficient wood harvesting on sensitive sites (Ecowood). Evaluation of the WES-method in assessing the trafficability of terrain and the mobility of forest tractors, Interpretation and application of the results. University of Helsinki, Department of Forest Resource Management, 2002, 15 p.


Login or Create
* Forgot password?