Currently, it is unknown how the current Soyuz landing injuries and accelerations relate to the new requirements levied on new vehicles. Understanding this connection will allow better quantification of the risk of injury for current crewmembers as well as allow NASA to relate this risk to the new design requirements recently enacted.
The following are the specific aims for this task:
Using data contained in the flight medicine databases, supplemented with data collected from crewmembers, flight surgeons, Russian sources, and international partner sources, an accurate estimation of the occurrences of injury during Soyuz landings will be determined. In addition, post-landing questionnaires will be developed for retrospective data collection to supplement the above sources. Information regarding Soyuz landings will be collected from Russian colleagues to determine the dynamics of landing. The goal is to obtain actual landing accelerations for individual landings. If this information is not available, all available information about nominal and off-nominal landings will be used to develop a statistical model of possible landing distributions. In parallel, a Finite Element model of the Soyuz seat will be developed and the Test Device for Human Occupant Restraint (THOR), Hybrid III, and Human FE models will be fitted into the seat. Using the landing data obtained or calculated, landing simulations will be conducted. The resulting THOR, Hybrid III, and Human FE responses will be compared to the injury occurrences and current requirements. These comparisons will allow an estimation of the true risk of injury to deconditioned crew related to THOR and Hybrid III metrics.
Results from this experiment are currently not available.