Safety assessment of civil airborne system based on safety case

doi:10.16265/j.cnki.issn1003-3033.2019.12.012

Abstract

Abstract: In order to solve problems of existing safety assessment methods of civil airborne system, such as unclear logical reasoning and poor readability, firstly, an argument strategy for its safety assessment, based on safety case and GSN language, was studied and proposed through analyzing compliance verification approach to system safety requirements. Secondly, system safety argument was conducted separately from two aspects of safety goal satisfaction and safety requirements management. Finally, effectiveness of this safety case based assessment method was demonstrated with real cases. The results show that safety case based on GSN meets requirements of civil aircraft and system development, and given the clear logical relationship it builds between safety objectives and supporting evidences, it can be used for internal communication and airworthiness certification.

Key words: system safety assessment, safety case, goal structuring notation (GSN), civil aircraft, airworthiness

CLC Number:

X949

XIAO Nyu'e, YAN Fang, WANG Peng. Safety assessment of civil airborne system based on safety case[J]. China Safety Science Journal, 2019, 29(12): 72-77.

References

[1] CCAR25-R4—2011, 运输类飞机适航标准[S].
CCAR25-R4-2011, Airworthiness standards for transport category airplanes[S].
[2] 牛儒, 唐涛. 安全论证方法及其在铁路信号开发安全保障中的应用[J]. 铁道学报, 2014,36(4): 54-59.
NIU Ru, TANG Tao. Application of safety argument in safety assurance system for railway signalling development [J]. Journal of the China Railway Society, 2014, 36(4): 54-59.
[3] 尹佳雯,左忠义,尹盼盼.基于安全论证法的铁路运营安全评价[J].中国安全科学学报,2018,28(增2): 155-160.
YIN Jiawen, ZUO Zhongyi, YIN Panpan. Research on safety evaluation index of railway operation based on safety analects [J].China Safety Science Journal, 2018,28(S2): 155-160.
[4] WANG Rui, GUIOCHET J, MOTET G, et al. Modelling confidence in railway safety case[J]. Safety Science, 2018,110: 286-299.
[5] WANG Rui, GUIOCHET J, MOTET G, et al. Safety case confidence propagation based on Dempster-Shafer theory[J]. International Journal of Approximate Reasoning, 2019,107: 46-64.
[6] SUN Linling, KELLY T. Safety arguments in aircraft certification[C]. 4^th IET International Conference on System Safety 2009. Incorporating the SaRS Annual Conference, 2009: 1-6.
[7] SUN Linling, ZHANG Wenjin, KELLY T. Do safety cases have a role in aircraft certification? [C]. Proceeding of the 2^nd International Symposium on Aircraft Airworthiness, 2011: 358-368.
[8] HOLLOWAY C M. Making the implicit explicit: towards an assurance case for DO-178C[C]. Proceedings of the 31^st International System Safety Conference (ISSC), 2013.
[9] DO-178C, Software considerations in airborne systems and equipment certification[S]. 2012.
[10] 王鹏, 熊国庆, 张帆, 等. 基于Safety Case理论的民机平视显示系统安全性评估[J]. 电光与控制, 2016,23(12): 56-60.
WANG Peng, XIONG Guoqing, ZHANG Fan, et al. Safety case based safety analysis of Head-Up display system for civil aviation [J]. Electronics Optics & Control, 2016,23(12): 56-60.
[11] 赵长啸,阎芳,邢培培,等.面向民机综合化航电系统的安全例证法研究[J].中国安全科学学报, 2017,27(7): 82-87.
ZHAO Changxiao, YAN Fang, XING Peipei, et al. Study on safety case method for integrated avionics of civil aircraft [J].China Safety Science Journal, 2017,27(7): 82-87.
[12] DEF STAN 00-56(Part1)/4-2007, Safety management requirements for defence systems, part1: requirements[S].
[13] SAE ARP4761-1996, Guidelines and methods for conducting the safety assessment process on civil airborne systems and equipment[S].
[14] KRITZINGER D. Aircraft system safety military and civil aeronautical applications [M]. Cambridge:Elsevier, 2006: 129-147.
[15] KRITZINGER D. Aircraft system safety assessments for initial airworthiness certification [M]. Cambridge:Elsevier, 2017: 23-35.
[16] EASA CS25 Amdt23, Certification specifications and acceptable means of compliance for large aeroplanes[S]. 2019.
[17] FAA. AC 25.1309-1B(arsenal). System design and analysis [Z].2002.