Assessment of the compaction effect and operational characteristics of a crawler tractor based on a rheological approach

BACKGROUND: At considering the issues of crawler tractors interaction with soil determining factor is time-varying impact loads on layer, its stressed and strained state, which, in turn, directly depends stress-strain properties. The properties assessment should be carried out a rheological approach, which allows to explain many phenomena processes develop new high technologies terms criterion minimizing soil.
 AIMS: Studying compacting ability tractor configuration various machine-tractor units, obtaining curve for effect traction load hook, speed mass redistribution over lower track wheels changes compaction due developing deformations, coefficient running resistance skidding crawler-mounted mover.
 METHODS: evoluation method mover layer was developed base previously constructed general mathematical model ways reducing movers bearing surface, computer calculation programmes deformation development under track.
 RESULTS: There are presented simulation results process an dependences rut depth sliding travelling displacement center pressure at different that obtained metod analysis well-known theory hereditary creep elastic-visco-plastic materials. same time, vertical shear deformations area separately analyzed.
 dependencies identify number patterns indicators influence main design technological parameters them. It established taking into account characteristics state permit significantly improve accuracy calculations final after successive passes wheels. desired behavior ambiguously wheels.
 CONCLUSION: conducted studies contribute optimal selection parts units based specific tractor, perform appropriate operations certain conditions work state.