README for "Use of a Simplified Model to Evaluate Lumbar Load Variability in Dynamic Testing of Transport Category Aircraft Seat Cushions" dataset. Bureau of Transportation Statistics (BTS), U.S. Department of Transportation (USDOT) 2026-09-16 ---------------------------------------------------------------- LINKS TO DATASET ---------------------------------------------------------------- A. Dataset archive link: https://doi.org/10.21949/1529736 ---------------------------------------------------------------- SUMMARY OF DATASET ---------------------------------------------------------------- This dataset contains simulation input and output representing sled tests. These data are created by computer simulations. The simulations were run in 2026. It is anticipated that aircraft seat manufacturers and test laboratories will benefit from access to this data as they design and test real aircraft seats and restraints. This dataset will also provide a public record to support potential rulemaking. ---------------------------------------------------------------- TABLE OF CONTENTS ---------------------------------------------------------------- A. General Information B. Sharing/Access & Policies Information C. Data and Related File Overview D. Methodological Information E. Data-Specific Information for: Effect of High-Rate Loading on Anthropomorphic Test Device Pelvises [supporting datasets] F. Update Log ---------------------------------------------------------------- A. GENERAL INFORMATION ---------------------------------------------------------------- 0. Title of Dataset: Use of a Simplified Model to Evaluate Lumbar Load Variability in Dynamic Testing of Transport Category Aircraft Seat Cushions [supporting datasets] 1. Description of Dataset: This dataset contains simulation input and output representing sled tests. These data are created by computer simulations. The simulations were run in 2026. It is anticipated that aircraft seat manufacturers and test laboratories will benefit from access to this data as they design and test real aircraft seats and restraints. This dataset will also provide a public record to support potential rulemaking. 2. Dataset archive link: https://doi.org/10.21949/1529736 3. Authorship Information: Principal Data Creator or Data Manager Contact Information Name: Moorcroft, David M. (ORCID 0000-0002-9709-1150) Institution: Civil Aerospace Medical Institute Address: Mike Monroney Aeronautical Center Bldg. 13 (CAMI), Room 119G 6500 South MacArthur Blvd Oklahoma City, OK 73169 Email: david.moorcroft@faa.gov Data Distributor Contact Information Name: Moorcroft, David M. (ORCID 0000-0002-9709-1150) Institution: Civil Aerospace Medical Institute Address: Mike Monroney Aeronautical Center Bldg. 13 (CAMI), Room 119G 6500 South MacArthur Blvd Oklahoma City, OK 73169 Email: david.moorcroft@faa.gov Organizational Contact Information Name: Moorcroft, David M. (ORCID 0000-0002-9709-1150) Institution: Civil Aerospace Medical Institute Address: Mike Monroney Aeronautical Center Bldg. 13 (CAMI), Room 119G 6500 South MacArthur Blvd Oklahoma City, OK 73169 Email: david.moorcroft@faa.gov 4. Date of data collection and update interval: 2026 5. Geographic location of data collection: United States ---------------------------------------------------------------- B. SHARING/ACCESS & POLICIES INFORMATION ---------------------------------------------------------------- 0. Recommended citation for the data: United States. Department of Transportation. Federal Aviation Administration. Office of Aviation. Office of Aerospace Medicine (2026). Use of a Simplified Model to Evaluate Lumbar Load Variability in Dynamic Testing of Transport Category Aircraft Seat Cushions [supporting datasets]. https://doi.org/10.21949/1529736 1. Licenses/restrictions placed on the data: None 2. Was data derived from another source?: No 3. This document was created to meet the requirements enumerated in the U.S. Department of Transportation's 'Plan to Increase Public Access to the Results of Federally-Funded Scientific Research' Version 1.1 << https://doi.org/10.21949/1520559 >> and guidelines suggested by the DOT Public Access website << https://doi.org/10.21949/1503647 >>, in effect and current as of December 03, 2020. ---------------------------------------------------------------- C. DATA & RELATED FILE OVERVIEW ---------------------------------------------------------------- 1. File List for the Madymo_DATASET_20260930.zip collection A. Folders: Grid Convergence Study Material Model Verification S18005 S18006 S18006-lapbelt S18006-repeatability S18008 S18009 S18012 S18013 S18016 S18017 S18020 S18021 S18022 System Validation v-ATD Evaluation B. File types: .aps angular positions .can cardan restraint angles .cntfrc contact loads .durinj duration - FFC Femur Force .energy FEM energy output .fhs FEM time-history .frc lap belt forces .injury injury criteria calculations .jps joint positions .kn3 animation .lac linear accelerations .log overview of the simulation progress and errors/aborts .lps FEM linear positions .peak peaks of all channels .pkx info for peak calculations .pre defined values .rds ATD displacements .rep reprint of the input file, error messages and warnings .rtf load cell forces .rtt load cell torques .tq1 head and pelvic torque .xml input deck C. File contents: Data files contain headers defining the contents. ---------------------------------------------------------------- D. METHODOLOGICAL INFORMATION ---------------------------------------------------------------- 1. Description of methods used for collection/generation of data: Simulations were run on an 8-core desktop computer. 2. Instrument- or software-specific information needed to interpret the data: Any text editor or specialized simulation post-processors such as Altair HyperWorks. ---------------------------------------------------------------- E. DATA-SPECIFIC INFORMATION ---------------------------------------------------------------- 1. Data - Use of a Simplified Model to Evaluate Lumbar Load Variability in Dynamic Testing of Transport Category Aircraft Seat Cushions A. Number of variables (columns): varies B. Number of cases/rows: varies C. Missing data codes: N/A ---------------------------------------------------------------- F. UPDATE LOG ---------------------------------------------------------------- This file was originally created on 2026-09-30 by David Moorcroft https://orcid.org/0000-0002-9709-1150