Analysis of influence of wearing experience on wearing of life preservers for aviation

doi:10.16265/j.cnki.issn1003-3033.2023.01.0758

Abstract

Abstract:

In order to better analyze the impact of wearing experience on the wearing of aviation life preservers, the author built an aviation seat platform, selected 32 students to wear life preserver for five times respectively, the wearing situation were analyzed, and each person's wearing process was timed in segments. The SPSS software was used to study the total wearing time, bag collecting time, unpacking time and pure wearing time of the five wearing tests for paired sample T test. The time difference between the two wearing tests, before and after, was analyzed. The results show that with the increase of wearing times, the total time of wearing and the average time of each step decreased to some extent, and the decrease of the second time was the most obvious compared with the first time, and the total time of wearing and each step had significant differences compared with the first time. After the third test, the total wearing time and each step decreased but the degree was weak. In the next revision of Inflatable life preservers for aviation, it is recommended to add requirements of bag taking and unpacking, and the time of them should not be included in the time of wearing life preservers, and it is recommended that the time be specified as 4 s and 9 s respectively, so that the requirements for wearing aircraft life jackets are more complete and more realistic.

Key words: wearing experience, life preservers for aviation, total time of wearing, paired sample T test, significant difference

YANG Ruiliang, LI Lingyi, ZHANG Zhijun, ZHU Shangyi. Analysis of influence of wearing experience on wearing of life preservers for aviation[J]. China Safety Science Journal, 2023, 33(1): 206-213.

Figures/Tables 11

Tab.1

Fig.1

Fig.2

Fig.3

Tab.2

Tab.3

Tab.4

Tab.5

Tab.6

Tab.7

Tab.8

References 16

[1]	AS 1354^TM, Individual inflatable life preserver[S]. 2016.
[2]	YANG Ruiliang, WANG Lijing, ZHOU Chi, et al. Life preservers: concepts, progress, and challenges[J]. The International Journal of Aerospace Psychology, 2020, 30 (3/4):77-88. doi: 10.1080/24721840.2020.1742123
[3]	YANG Ruiliang, YANG Libin, ZHAO Lina, et al. Distribution and risk factors of water-related accidents for general aviation aircraft[J]. International Journal of Aerospace Engineering, 2021:DOI:10.1155/2021/8812881. doi: 10.1155/2021/8812881
[4]	陆杰欢, 杨爱慧, 杨瑞梁, 等. 航空用气胀式救生衣的穿戴时间测试[J]. 中国安全科学学报, 2021, 31(2): 167-172. doi: 10.16265/j.cnki.issn 1003-3033.2021.02.023
	LU Jiehuan, YANG Aihui, YANG Ruiliang, et al. Experiment on donning time of inflatable aviation life preserve[J]. China Safety Science Journal, 2021, 31(2): 167-172. doi: 10.16265/j.cnki.issn 1003-3033.2021.02.023
[5]	YANG Ruiliang, YANG Libin, WANG Lijing, et al. Life quality index based cost-benefit analysis of equipping life preservers aboard airplanes[J]. Part G: Journal of Aerospace Engineering, 2021, 235(15): 2157-2164.
[6]	National Transportation Safety Board NTSB. Loss of thrust in both engines after encountering a flock of birds and subsequent ditching on the Hudson river[R], 2012.
[7]	CORBETT C L, WEED D B, RUPPEL D J, et al. Inflatable emergency equipment I: evaluation of individual inflatable aviation life preserver donning tests[R]. Federal Aviation Administration, 2014.
[8]	GB/T 36508—2018,航空用气胀式救生衣[S].
	GB/T 36508-2018, Inflatable life preservers for aviation[S].
[9]	TSO-C13g,Life preservers[S]. 2017.
[10]	CORBETT C L, MCLEAN G A, COSPER D K. Effective presentation media for passenger safety I: comprehension of briefing card pictorials and pictograms[R]. Federal Aviation Administration, 2008.
[11]	CHITTARO L, CORBETT C L, MCLEAN G A, et al. Safety knowledge transfer through mobile virtual reality: a study of aviation life preserver donning[J]. Safety Science, 2018, 102: 159-168. doi: 10.1016/j.ssci.2017.10.012
[12]	LEE C, WANG S W, HSU M K, et al. Air passenger's perception toward pre-flight safety briefing videos: does it matter[J]. Journal of Air Transport Management, 2018, 72: 20-31. doi: 10.1016/j.jairtraman.2018.07.004
[13]	CHITTARO L A. Comparative study of aviation safety briefing media: card,video,and video with interactive controls[J]. Transportation Research,Part C: Emerging Technologies, 2017, 85: 415-428. doi: 10.1016/j.trc.2017.10.007
[14]	YANG Ruiliang, WU Zijiang, QIAN Xiaoming. Evaluating the influential factors for life preserver donning tests[EB/OL]. (2021-02-08). https://doi.org/10.1371/journal.pone.0246705.
[15]	MOLESWORTH B R C. Examining the effectiveness of pre-flight cabin safety announcements in commercial aviation[J]. The International Journal of Aviation Psychology, 2014, 24(4): 300-314. doi: 10.1080/10508414.2014.949511
[16]	TSO-C13f,Life preservers[S]. 1992.

标准号	GB /T 36508 —2018^[8]	TSO-C13g^[9]
项目	穿救生衣(包括拆救生衣包装)	穿救生衣(包括拆救生衣包装)	拆救生衣包装
合格穿戴的要求	被试应 25 s内从包中取出并穿上救生衣	被试能够在无人协助情况下,25 s内从包中取出并穿上救生衣	拆包时间不多于7 s
开始计时时间	被试双手放在包好的救生衣上	被试双手放在包好的救生衣上	被试的双手放在袋子上,准备打开
结束计时时间	被试正确穿好、固定,并调节合身为止	被试正确穿好、固定,并调节合身为止	救生衣包装被完全打开,袋子被完全移除

项目	穿救生衣时间 (包括拆包时间)			拆包时间
次数	均值/ s	75分位值/s	标准差	均值/ s	75分位值/s	标准差
1	52.16	63.00	19.57	11.91	14.00	5.62
2	29.81	36.00	10.06	7.44	9.00	2.84
3	25.59	30.50	7.39	6.47	7.50	2.84
4	24.56	27.50	7.47	6.50	8.00	2.74
5	20.59	25.00	5.28	4.97	6.00	1.96

变量	配对差值				t	Sig.(双尾)
	均值	标准差	差值 95% 置信区间
	均值	标准差					下限	上限
第1和2次	22.34	18.90	15.53	29.16	6.69	0.00
第2和3次	4.22	10.36	0.48	7.96	2.30	0.03
第3和4次	1.03	8.81	-2.14	4.21	0.66	0.51
第4和5次	3.97	6.63	1.58	6.36	3.39	0.00

变量	配对差值				t	Sig.(双尾)
	均值	标准差	差值 95% 置信区间
	均值	标准差					下限	上限
第1和2次	0.88	1.41	0.37	1.38	3.51	0.001
第2和3次	0.38	0.87	0.06	0.69	2.44	0.021
第3和4次	0.06	0.84	-0.24	0.37	0.42	0.677
第4和5次	0.34	0.75	0.08	0.61	2.61	0.014

性别	男			女
次数	均值	75分位值/s	标准差	均值	75分位值/s	标准差
1	11.76	14.50	6.71	12.06	14.00	4.28
2	7.29	9.00	3.53	7.60	9.00	1.88
3	6.24	7.25	3.17	6.73	7.75	2.49
4	5.35	6.25	2.06	7.80	8.75	2.88
5	4.18	6.00	1.70	5.87	6.75	1.88