Design and Fabrication of an EDS Enabled Brush Prototype for Lunar Dust Mitigation

In past lunar expeditions, surface operations have been impeded by the presence of lunar regolith. The electrostatic nature and small particle size of lunar dust cause adversities such as surface abrasion, vision obstruction, thermal surface degradation, and health issues, necessitating the development of dust mitigation strategies for future lunar surface operations and settlements. This research presents the development of a prototype for a novel approach to lunar dust mitigation, through the integration of an electrodynamic dust shielding (EDS) system into a handheld brushing mechanism. By combining the mechanical action of a brush with the electrostatic repulsion of an EDS system, the design aims to enhance dust removal efficiency and brush longevity while maintaining a compact and robust design suitable for lunar environments. Building on previous research, the prototype features an improved electrode configuration designed to facilitate directed dust movement during, and after, brushing. The prototype manufacturing process incorporates PCB-based electrode integration to ensure structural integrity and reliable electrical performance, along with delivering the required tolerances in electrode spacing, and other specifications, cost-effectively. Testing plans include evaluations of dust removal efficiency under various voltage conditions and assessments of electrode effectiveness during brushing and in clearing debris from bristles. The results from prototype fabrication and planned testing will provide key insights into the effectiveness of dielectrophoretic forces in assisting mechanical dust removal. By evaluating both the functional performance and feasibility of the system, this study aims to establish a foundation for future iterations of EDS-enabled brushes that can be deployed in lunar environments.