This papers refers to an alternative concept, related to the space debris removal studies, based on a belts-based space mechanism. LS-DYNA has been used in order to verify both dynamic behavior and structure-debris interaction. In particular, It has been adopted in the following areas: study of the maneuvers of proximity, mechanical interaction between the two objects (exchange of forces, energy, accelerations, contact pressure), the development and optimization of mechanisms to perform the capture, assessment and verification of the dynamic behaviour during the deployment of extensible parts (arms, solar panels, deployable structures), design test environment on the ground, prediction and correlation of test data.