A model for prediction of vertical stress distribution near the soil surface below rubber-tracked undercarriage systems fitted on agricultural vehicles

摘要: Abstract Rubber-tracked vehicles are becoming increasingly popular in agriculture. undercarriage systems typically fitted instead of tyres on heavy agricultural vehicles, with the aim e.g. decreasing soil stress and compaction risks. Therefore, accurate prediction stresses below rubber-tracked is important. Here, we present a model for vertical distribution at rubber track–soil interface. In model, system consists front rear wheel (idler drive wheel) number support rollers. The longitudinal direction under or roller described by harmonic oscillation, dynamic contact length being function diameter. lateral direction, modelled linear function, maximum centre line track. Model input parameters include load track, track width, (distance between axles), rollers which written Visual Basic implemented as macro an Excel spreadsheet, then computes interface based these inputs generated area can be used to simulate stresses. provides realistic estimates soil, thereby improving predictions risks vehicles.