LTV-xEVA Applied Injury BiomechanicsBeginning in Artemis V, Lunar Terrain Vehicles (LTV) will be utilized to enable astronauts to explore the lunar south pole and conduct science farther from the landing site than during the Apollo program. However, LTV operation has the potential to cause injury to the suited crew member during their Extravehicular Activity (EVA). Injury risk caused by LTV acceleration and jerk combined with blunt loading from rigid suit components needs to be better understood. An effort began to create requirements for, model, and address the injury risk caused by the LTV combined with Exploration EVA (xEVA) suits. Mitigation of crew injury is a shared responsibility between LTV and the suit since neither can accomplish this independently. The modeling completed in Fiscal Year 2023 (FY23) helped to verify the fidelity of the requirements and parse out vendor responsibility (LTV, xEVAS, or NASA) for Artemis V and beyond. The scope of the modeling in FY23 used the LTV System Requirements Document (SRD) as worst-case inputs and modeled female 5th-, male 50th-, and male 95th-percentile subjects in hard-mounted seated and semi-standing postures. Soft-mounted (i.e., lap belt) and testing to validate the analysis was determined out of scope for FY23 work.
Document ID
20240007465
Acquisition Source
Johnson Space Center
Document Type
Presentation
Authors
Keegan Yates (KBR (United States) Houston, Texas, United States)
Aaron Drake (KBR (United States) Houston, Texas, United States)
Kristine Davis (Johnson Space Center Houston, United States)
Date Acquired
June 11, 2024
Subject Category
Man/System Technology and Life Support
Meeting Information
Meeting: 53rd International Conference on Environmental Systems (ICES)
Location: Louisville, KY
Country: US
Start Date: July 21, 2024
End Date: July 25, 2024
Sponsors: International Conference on Environmental Systems