FTA-FMEA-based validity verification techniques for safety standards

Chae, Chung Keun; Ko, Jae Wook

doi:10.1007/s11814-016-0321-1

Cited by 7 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, a critical weighing index was added to these methods in order to determine critical equipment for effective maintenance planning [37]. Several explorations have successfully developed a combined quantitative FTA and FMEA method to enhance risk analysis results [38]- [40]. Furthermore, the integration of the methods with Fuzzy Analysis has been employed to optimize qualitative analysis [41], [42].…”

Section: Fta and Fmeamentioning

confidence: 99%

Enhancing Brake System Evaluation in Periodic Testing of Goods Transport Vehicles through FTA-FMEA Risk Analysis

Ansori,

Waskito,

Mutharuddin

et al. 2023

View full text Add to dashboard Cite

Failure of the braking system is one of the factors causing traffic accidents, therefore periodic testing of goods transport vehicles is very important. In fact, the incidence rate is still very high despite routine testing. Standard Operating Procedures (SOP) for periodic testing must be updated to reduce the risk of possible accidents. Therefore, procedures for updating the SOP for periodic brake system testing are presented in this article. The Fault Tree Analysis (FTA) and Failure Mode and Effect Analysis (FMEA) methods were applied based on accident investigation data from the National Transportation Safety Committee (NTSC) from 2017 to 2022. FTA is used for risk identification, while FMEA is used for risk analysis to find the highest-risk failure cases. The results of our analysis showed that 13 failure cases were classified as intolerable so additional SOPs were required for each case. Finally, the results of this study provide new insights for stakeholders to revise the rules regarding periodic vehicle testing.

show abstract

Section: Fta and Fmeamentioning

confidence: 99%

Enhancing Brake System Evaluation in Periodic Testing of Goods Transport Vehicles through FTA-FMEA Risk Analysis

Ansori,

Waskito,

Mutharuddin

et al. 2023

View full text Add to dashboard Cite

show abstract

“…What for?) [23] . The combination of these two methods can reduce the drawbacks of each method if the FTA is used to determine the root causes and the FMEA is applied to specify the severity, occurrence, and detection numbers [24] .…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the failure effects of a screwing station using a new approached FMEA

Ungvári¹,

Gyurika²,

Csiszér³

2023

MethodsX

View full text Add to dashboard Cite

“…This method is widely elaborated, eg, previous studies. 3,4 In the field of functional safety, the FTA method is elaborated according to EN 61508 in Rausand and Høyland, 5 for automotive is mentioned in Mader et al 6 Unlike ISO 26262, the standards EN 61508, IEC 61511 do not have the concept of multiple failures. Therefore, failure rates associated with multiple failures, such as failure rates λ FMPF DP and λ MPF L , do not appear anywhere in the calculation examples.…”

mentioning

confidence: 99%

Application of hardware reliability calculation procedures according to ISO 26262 standard

Famfulík

Richtář

Rehak

et al. 2020

Quality & Reliability Eng

View full text Add to dashboard Cite

The second edition of standard ISO 26262 (ed. 2018) for functional safety assessment in the automotive industry requires a hardware evaluation using the probabilistic metric for random hardware failures (P MHF). The standard for mentioned purpose highly recommends the fault tree analysis (FTA) utilization but does not give any specific calculation example. Therefore, this article describes computational procedures with derivation and explanation of mathematical formulas for various hardware architectures of electronic systems. Described formulas consider impact of multiple failures and impact of elf-tests, but formulas are relatively simple. This simplicity allows them to be used in the early stages of hardware development when frequent hardware design changes can be expected. Thus, the article with attached case study is intended not only for scientists but also for developers of critical safety-related electronic systems in the automotive industry. K E Y W O R D S car functional safety, fault tree analysis (FTA), hardware assessment, hardware development, ISO 26262, P MHF 1 | INTRODUCTION As in all other areas of industry, the number of electronic systems in car design is constantly growing. This is closely related to the implementation of industry standards in the field of functional safety, based on the principles described in the basic safety standard EN 61508. In the automotive industry, standard ISO 26262:2018 is already established for vehicles up to 3.5 tons. One of the objectives of this standard is to adjust the procedures for Automotive Safety Integrity Level (ASIL) assessment. Generally, standard ISO 26262 assumes for electrical/electronic systems possibility of occurrence of two types of failures, the systematic failures and the random failures, and standard also sets the procedures for failures elimination. However, random failures cannot be completely eliminated, because of their stochastic nature, but it is possible to assess their expected frequency, respectively probability of occurrence, by applying appropriate computational methods. The standard requirement for validation of hardware of assessed system according to ISO 26262 is to perform a quantitative analysis to demonstrate compliance with specific target values depending on the desired ASIL level in two areas. The first area is the diagnostic coverage, thus the ability to detect dangerous system failures robustly and timely. Diagnostic coverage procedures are well described in ISO 26262 and are complemented by a sample example to help developers. Therefore, in the article, this issue will only be mentioned to the extent necessary to understand other texts.

show abstract

FTA-FMEA-based validity verification techniques for safety standards

Cited by 7 publications

References 7 publications

Enhancing Brake System Evaluation in Periodic Testing of Goods Transport Vehicles through FTA-FMEA Risk Analysis

Enhancing Brake System Evaluation in Periodic Testing of Goods Transport Vehicles through FTA-FMEA Risk Analysis

Evaluation of the failure effects of a screwing station using a new approached FMEA

Application of hardware reliability calculation procedures according to ISO 26262 standard

Contact Info

Product

Resources

About