Strocera

Rover wheel-soil interaction.

Apollo-traceable simulant bed for traction, slip, and sinkage studies over repeated rover traversal.

STROCERA / / / Regolithia / / / Space
[ 01 ]The challenge

A rover crosses the same class of terrain thousands of times, and the soil changes as it does. Wheels compact the surface, break down angular grains, and leave a track that behaves differently from virgin ground on the next pass. Slip ratio, drawbar pull, and slope climbing limits are all measured against that evolving condition, not against a single first contact. Generic sand rounds and packs differently from regolith, so traction curves measured on it drift away from flight behaviour over a mission-length traverse.

Schematic, illustrativeRegolithia
[ 02 ]The Strocera approach

Regolithia Highland (RGS-H1) and Mare (RGS-M1) at phase match 96.4 % and 99.2 % preserve the particle morphology produced by brittle comminution that governs interlocking under repeated wheel passes. The particle size distribution and size fractions are published on each datasheet, so a soil bin can be prepared to a stated condition and restored between runs. Alternative size fractions can be produced on request for the wheel and grouser geometry under test. Bulk quantities support full-scale single-wheel testbeds and mobility rigs, with the same lot available across a campaign so traction data stays comparable.

Full Regolithia spec
[ 03 ]Specifications for this use case
Property
Value
Method
Phase match, Highland (RGS-H1)
96.4 %
4 modelled phases; XRD and SEM-EDS
Phase match, Mare (RGS-M1)
99.2 %
4 modelled phases; XRD and SEM-EDS
Dv(10/50/90), Highland
2.93 / 8.84 / 74.0 µm
Laser diffraction, wet mode
Dv(10/50/90), Mare
3.29 / 10.4 / 74.1 µm
Laser diffraction, wet mode
Size cut
< 75 µm mesh
Sieve
Alternative size fractions
On request
[ 04 ]Validation status
Lab-validated

Apollo-traceable feedstock; rig-specific particle and density profiles on request.

[ 05 ]Customer profile

Rover mobility and terramechanics engineers measuring slip, drawbar pull, and slope performance over repeated traversal.

[ 06 ]Adjacent use cases

Engineers working on this often also evaluate:

Bring your specification for Rover wheel-soil interaction.

Tell us the operating conditions. We'll formulate Regolithia to your application, and ship simulant matched to your particle specification and volume.