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- W2377892134 abstract "A finite element crash model of a typical civil airplane sub-cabin structure is developed and then a structural energy absorption analysis is conducted with the LS-Dyna code.An energy absorption design method is introduced based on energy absorption structure concept to minimize the cabin floor acceleration response.Then a full-scale test article is designed and manufactured,and a drop test is conducted to verify the design features and the modeling method.A correlation evaluation method based on energy is introduced,and the finite element model is updated after the correlation analysis between the pre-test analysis results and the test results.The updated analysis results show good agreement with the test results.The error of the average peak acceleration response at the centroid of the simulated occupant is 16.44%,and the error of the average maximum rebound velocity of the model is 10.53%.The global deformation modes of the test and simulation also fit well.But the error of the energy absorption duration and time when the peak acceleration appears are fairly large,which indicates that certain structural modeling features,such as the structural joint dynamic failure mode,have significant impact on the computational results." @default.
- W2377892134 created "2016-06-24" @default.
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- W2377892134 date "2012-01-01" @default.
- W2377892134 modified "2023-09-23" @default.
- W2377892134 title "Correlation Study of Crash Analysis and Test of Civil Airplane Sub-cabin Energy Absorption Structure" @default.
- W2377892134 hasPublicationYear "2012" @default.
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