The volume of the excavator claw was found by analyzing the design Ansys Spaceclaim, as mentioned previously.
The density of the regolith was acquired from the NASA Break the Ice Challenge.
d = Density of the lunar regolith at 4% concentration > 1.79 g/cm3.M = Maximum Mass of Excavator Load Capacity.This maximum capacity was calculated by modifying the density formula, equation 1 below, and resulted in the excavator maximum capacity equation, equation 2 below: To prevent the design from failing during the lunar rover mission, the maximum capacity was calculated using the volume data found by Ansys Spaceclaim. 1.1 Calculate Excavator Design Maximum Load CapacityĪ crucial aspect of the excavator claw design is the amount of regolith it can support per dig during excavation on the surface of the Moon. This data will be used to determine the lunar rover prototype’s excavator maximum load capacity and pressure tolerance. The Figure below is a picture of the excavator claw and its corresponding volume.Īnsys Spaceclaim determined the design’s volume to be 127,372.9 mm3 and surface area of 14,862.1 mm2. Ansys Spaceclaim is a 3-D computer-aided design software that can be used with other tools in the Ansys platform to conduct several design engineering processes.Īs the excavator claw was modeled, Ansys extracted metrics such as the volume and surface area of the excavator claw design. Once a design for the excavation sub-system of the lunar rover prototype was determined and finalized, a model was created in Ansys Spaceclaim to perform an analysis of the design’s performance capacity. How the Ansys platform may be used to analyze designs of systems, specifically how Ansys Spaceclaim and Ansys Static Structural were used to criticize the excavator claw design’s load capacity and pressure tolerance.
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