Formative Process Analysis of the Effective Spectrum of the Soft Terrain Surface

The formative process of the effective spectrum of the soft terrain includes two processes of the dynamic compact of the tyre-soft terrain interaction and enveloping smooth model of the tyre-soil contact area. The models of two formative processes were developped and calculated, furthemore being verified. Assuming under the same conditions, the drive tyre underneath effective spectrum is lower than the driven tyre.