The SAE ARP 5765 standard, developed by the Society of Automotive Engineers (SAE), provides a method of assessing the reliability of computer models of aircraft seat systems used to simulate dynamic impact conditions specified in the relevant sections of the Federal Regulations 14 CFR standard. This standard is applicable to bulk mass and detailed finite element seat models.
The SAE ARP 5765 standard includes specifications and performance criteria for aviation-specific virtual anthropomorphic testers. This standard proposes a methodology for assessing the level of correlation between a seat model and dynamic impact tests. It also provides a method for testing and modeling best practices to support the application of analytical models of aircraft seat systems.
Supporting information in this standard includes procedures for quantitative comparison of test and simulation results, as well as test reports and a sample report for data generated to support the development of aviation-specific virtual anthropomorphic test equipment.
In short, the purpose of the SAE ARP 5765 standard is to provide a method for measuring and evaluating the degree of correlation between a model and a physical test, and to provide best modeling practices to improve the accuracy and predictability of seat analyses.
The challenges faced in finite element simulation are: determining the appropriate degree of fidelity required in the model, interface between fasteners, seats, and aircraft attachment, constraints, cushion patterns, ground deformation, permanent deformation, material characterization, and failure criteria.
Prior to this standard, there were no aviation-specific anthropomorphic testers in the industry that produced accurate results in aviation-specific scenarios. Therefore, the goal of this standard is to describe the process for ensuring that virtual anthropomorphic testers match the anthropometry and kinematic performance of a physical anthropomorphic tester for aviation-specific applications. In general, evaluation of the reliability of modeling and simulation is accomplished through validation processes.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides analytical methods for aircraft seat design and evaluation within the scope of SAE ARP 5765 standard, with its trained and expert staff and advanced technological equipment.
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