Effects of different postures on crew damage under the impact of manned airdrop landing

DAI Junchao; ZHOU Yunbo; ZHANG Jincheng; ZHANG Ming; WANG Xianhui; SUN Xiaowang

doi:10.11883/bzycj-2020-0073

Volume 41 Issue 1

Jan. 2021

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Article Navigation > Explosion And Shock Waves > 2021 > 41(1): 015901

DAI Junchao, ZHOU Yunbo, ZHANG Jincheng, ZHANG Ming, WANG Xianhui, SUN Xiaowang. Effects of different postures on crew damage under the impact of manned airdrop landing[J]. Explosion And Shock Waves, 2021, 41(1): 015901. doi: 10.11883/bzycj-2020-0073

Citation:

DAI Junchao, ZHOU Yunbo, ZHANG Jincheng, ZHANG Ming, WANG Xianhui, SUN Xiaowang. Effects of different postures on crew damage under the impact of manned airdrop landing[J]. Explosion And Shock Waves, 2021, 41(1): 015901. doi: 10.11883/bzycj-2020-0073

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Effects of different postures on crew damage under the impact of manned airdrop landing

doi: 10.11883/bzycj-2020-0073

School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

Received Date: 2020-03-19
Rev Recd Date: 2020-06-22
Publish Date: 2021-01-05

Abstract

Abstract

For a military vehicle, an unbuffered platform airdrop test was performed at a height of 1 m. And a seat-crew model was built. The impact signals at the seat installation point were obtained by the test. The obtained signals were used as the input of the simulation model, and the reliability of the model was verified by comparing the test and simulation data. Based on the aeronautical engineering related research, a weight evaluation index named weighted injury criteria (WIC) was presented by normalizing each key damage index. The influence of two posture parameters, namely the crew’s supine angle and the angle between the calf and the thigh, on the crew’s injury was studied. With the WIC as the optimization target, the genetic algorithm was used to obtain the optimized parameters. The study finds that to restrain the motion of the crew’s calf can reduce his overall injury response. The optimal posture of the crew against the landing impact is the supine angle range from 47° to 56°, and the angle between the upper and lower legs is from 62° to 68°.
- manned airdrop,
- landing impact,
- crew posture,
- weight evaluation index,
- weighted injury criteria

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References(16)

References

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