scholarly journals A Systematic Methodology for Developing Bowtie in Risk Assessment: Application to Borescope Inspection

Aerospace ◽  
2020 ◽  
Vol 7 (7) ◽  
pp. 86
Author(s):  
Jonas Aust ◽  
Dirk Pons
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Gas Turbine ◽  
Visual Inspection ◽  
Development Process ◽  
Ad Hoc ◽  
Risk Assessments ◽  
Specific Knowledge ◽  
Systematic Methodology ◽  
Application Specific

Background—Bowtie analysis is a broadly used tool in risk management to identify root causes and consequences of hazards and show barriers that can prevent or mitigate the events to happen. Limitations of the method are reliance on judgement and an ad hoc development process. Purpose—Systematic approaches are needed to identify threats and consequences, and to ascertain mitigation and prevention barriers. Results—A new conceptual framework is introduced by combining the Bowtie method with the 6M structure of Ishikawa to categorise the threats, consequences and barriers. The method is developed for visual inspection of gas turbine components, for which an example is provided. Originality—Provision of a more systematic methodology has the potential to result in more comprehensive Bowtie risk assessments, with less chance of serious omissions. The method is expected to find application in the broader industry, and to support operators who are non-risk experts but have application-specific knowledge, when performing Bowtie risk assessment.

Application of the Risk Theory to Management Reliability of the Pipeline

2014 ◽  
Vol 635-637 ◽  
pp. 434-438 ◽  
Author(s):  
Liudmila Muravyeva ◽  
Nikolai Vatin
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Natural Gas ◽  
Full Range ◽  
Chemical State ◽  
Risk Theory ◽  
Risk Assessments ◽  
Ambient Conditions ◽  
Failure Intensity ◽  
Pressurized Pipelines

The leak less distant transportation of large amounts of hazardous matters (for example natural gas) through a pressurized pipelines is a serious challenge. The pipeline should be able to withstand the full range of ambient conditions as well as the Earth’s crust movements, varying soil chemical state at present and after months or years of exploitation. During the previous years the formal risk assessments were carried out on the base of the failure intensity. Since that time the procedure of the risk assessment has become more sophisticated. At present risk management is being more and more mandated by regulations.

scholarly journals Signs of Resistance? Swedish Probation Officers' Attitudes towards Risk Assessments

2011 ◽  
Vol 3 (3) ◽  
pp. 95-107 ◽  
Author(s):  
Anders Persson ◽  
Kerstin Svensson
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Probation Officers ◽  
Assessment Tools ◽  
Risk Assessments ◽  
What Works ◽  
Risk Assessment Tools ◽  
Probation Service ◽  
Organizational Logic ◽  
Risk Concept

The Swedish Prison and Probation Service has been influenced by the ‘What Works’ agenda since the late 1990's and an orientation towards risk and risk management has gradually become visible in the organization. But there is, within the probation service, a discrepancy between two types of logics — an organizational logic and a professional logic. Although guidelines prescribe the use of risk-assessment tools, they are in reality seldom used by practitioners. Through an examination of the reasons given by the probation officers who expressed doubts or concerns about the risk-concept, we question whether this could be seen as signs of resistance based on professional logic.

scholarly journals The risks of risk assessment

2007 ◽  
Vol 13 (4) ◽  
pp. 291-297 ◽  
Author(s):  
Guy Undrill
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Health Service ◽  
Behaviour Change ◽  
Service Providers ◽  
Adverse Outcome ◽  
Risk Assessments ◽  
Negative Consequences ◽  
Health Service Providers ◽  
The Future

Risk assessment has become a large and anxiety-provoking part of the work of many psychiatrists. This article unpicks the different meanings of the word ‘risk’ to seek out the source of that anxiety, looking at both statistical and sociological ideas about risk. A risk assessment is often a subjective, plastic and context-dependent statement about a patient that carries strong moral overtones. Risk management is also highly anxiogenic for those charged with carrying it out, because uncertainty about the future is impossible to eliminate and the consequences of an adverse outcome in the patient may also carry hazards to the doctor making the risk assessment. This leads to behaviour change in people carrying out risk assessments as they attempt to minimise their anxiety in a rationally selfish way, often with unintended negative consequences for patients, doctors and health service providers generally. Some possible strategies for minimising this effect are considered.

Initiating and Managing Risk Assessments within a Risk Analysis Framework: FDA/CFSAN'S Practical Approach

2004 ◽  
Vol 67 (9) ◽  
pp. 2058-2062 ◽  
Author(s):  
ROBERT L. BUCHANAN ◽  
SHERRI DENNIS ◽  
MARIANNE MILIOTIS
Keyword(s):  
Risk Assessment ◽  
Decision Making ◽  
Risk Management ◽  
Risk Analysis ◽  
Risk Assessments ◽  
Analysis Framework ◽  
Regulatory Decision ◽  
Managing Risk ◽  
Risk Managers ◽  
The U.S

Management of risk analysis involves the integration and coordination of activities associated with risk assessment, risk management, and risk communication. Risk analysis is used to guide regulatory decision making, including trade decisions at national and international levels. The U.S. Food and Drug Administration Center for Food Safety and Applied Nutrition (CFSAN) formed a working group to evaluate and improve the quality and consistency of major risk assessments conducted by the Center. Drawing on risk analysis experiences, CFSAN developed a practical framework for initiating and managing risk assessments, including addressing issues related to (i) commissioning a risk assessment, (ii) interactions between risk managers and risk assessors, and (iii) peer review.

scholarly journals Methodology for Evaluating Risk of Visual Inspection Tasks of Aircraft Engine Blades

Aerospace ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 117
Author(s):  
Jonas Aust ◽  
Dirk Pons
Keyword(s):  
Risk Assessment ◽  
Visual Inspection ◽  
Aircraft Engine ◽  
Risk Framework ◽  
Material Separation ◽  
Inspection Tasks ◽  
Risk Metric ◽  
Engine Components ◽  
Application Specific ◽  
Industrial Context

Risk assessment methods are widely used in aviation, but have not been demonstrated for visual inspection of aircraft engine components. The complexity in this field arises from the variety of defect types and the different manifestation thereof with each level of disassembly. A new risk framework was designed to include contextual factors. Those factors were identified using Bowtie analysis to be criticality, severity, and detectability. This framework yields a risk metric that describes the extent to which a defect might stay undetected during the inspection task, and result in adverse safety outcomes. A simplification of the framework provides a method for go/no-go decision-making. The results of the study reveal that the defect detectability is highly dependent on specific views of the blade, and the risk can be quantified. Defects that involve material separation or removal such as scratches, tip rub, nicks, tears, cracks, and breaking, are best shown in airfoil views. Defects that involve material deformation and change of shape, such as tip curl, dents on the leading edges, bents, and battered blades, have lower risk if edge views can be provided. This research proposes that many risk assessments may be reduced to three factors: consequence, likelihood, and a cofactor. The latter represents the industrial context, and can comprise multiple sub-factors that are application-specific. A method has been devised, including appropriate scales, for the inclusion of these into the risk assessment.

Risk assessment

2018 ◽  
Vol 3 (7) ◽  
Author(s):  
H. Kušić ◽  
A. Lončarić Božić
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Human Health ◽  
Exposure Assessment ◽  
Environmental Risk ◽  
Environmental Risk Assessment ◽  
Risk Estimation ◽  
Risk Assessments ◽  
Effect Assessment ◽  
Basic Concepts

Abstract The chapter introduces risk assessment and examines the basic concepts of risk and hazard, their causes, consequences and probabilities. The methodology of environmental risk assessment including effect assessment, exposure assessment and risk estimation/characterisation is overviewed. Application of risk assessment for chemicals is described with regard to human health and the environment. Some of the commonly used techniques in risk assessments are introduced and illustrated by examples. Environmental risk assessment should provide input to the risk management so well-informed decisions can be made, to protect human health and the environment.

Analysis of Data Center Risk Management in Indonesia National Traffic Police Corps

2019 ◽  
Vol 3 (1) ◽  
pp. 113-117
Author(s):  
Wita Susilowaty
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Data Center ◽  
Significant Risk ◽  
Point Of View ◽  
Risk Assessments ◽  
Holistic View ◽  
Traffic Police ◽  
Regulatory Pressure ◽  
Enterprise Risk

Topic about Data Center crisis highlighted that significant risk failures persist despite the investments in the disciplines of risk assessment and risk management. Although isolated incidents of one-time governance failure are reduced, the systemic ruin are more than just a stray differensiation. Various experts and professional institutions dealing with risk management have come to the judgement that the failures may be caused by a confusion in the risk information due to diverse risk assessments from different point of view [3][6]. The Data Center crisis and the resulting regulatory pressure forced the chief data center officers and high ranked management of Indonesia Traffic Police Corps to focus more on assessment, mitigation and reporting of risk. The process of organizing these risk assessments to provide the Indonesia Traffic Police Corps with a more holistic view of the enterprise risk is fundamental to mastering risk assessment.

Risk Assessment/Risk Management Is a Three-Step Process: In Defense of EPA's Risk Assessment Guidelines

1988 ◽  
Vol 7 (4) ◽  
pp. 543-549 ◽  
Author(s):  
Bernard D. Goldstein
Keyword(s):  
Risk Assessment ◽  
Decision Making ◽  
Risk Management ◽  
Science Policy ◽  
Priority Setting ◽  
Risk Assessments ◽  
Appropriate Use ◽  
Step Process ◽  
The Past ◽  
Assessment Guidelines

The purpose of this article is to focus on the appropriate use and development of risk assessment and to point out that many of the perceived shortcomings, in fact, represent limitations imposed by the framework in which it is being used and failure to understand the situations for which risk assessment is suited. Risk assessment/risk management is really a three-step not a two-step process. The first step, preceding risk assessment, is science policy, in which the guidelines for the generic performance of risk assessments are established. The benefits of risk assessment to appropriate environmental regulation not only are direct, in terms of improved decision making and priority setting, but also they have the major indirect value of focusing research efforts on crucial uncertainties in a manner that has not been possible in the past.

scholarly journals Principles for designing a computer application specific to explosion risk management in explosive deposits

2022 ◽  
Vol 354 ◽  
pp. 00005
Author(s):  
Florin Ionel Burdea ◽  
Monica Crinela Burdea
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Occupational Safety ◽  
Computer Application ◽  
Design Phase ◽  
Security Measures ◽  
Degree Of Damage ◽  
Application Specific ◽  
Explosion Risk

Industrial explosive storage sites are considered to be areas of major risk to industrial, public and occupational safety and security, due to the possibility of major accidents, due to the nature of the explosive substances and due to the serious consequences of an explosion.on these sites. The explosion risk assessment for explosives depots requires an analysis of all possible occurrences of the initiating events that could lead to a potential explosion, followed by an analysis of security measures, all of which are quantified by the development of accident trees and sequences. for each possible trigger. This paper presents the principles of designing a specialized computer application in the field of explosion risk management at explosives depots for civilian use. This application allows to ensure the necessary premises for the elaboration, in objective and specific conditions, of the necessary documents for these types of technical infrastructures, from their design phase and the quantification of the degree of damage on the analyzed locations but also in the areas that are located.

scholarly journals Uncertainty and precaution in European environmental risk assessment of chemicals

2005 ◽  
Vol 52 (6) ◽  
pp. 227-234 ◽  
Author(s):  
F.A.M. Verdonck ◽  
P.A. Van Sprang ◽  
P.A. Vanrolleghem
Keyword(s):  
Risk Assessment ◽  
Risk Management ◽  
Probabilistic Approach ◽  
Risk Assessments ◽  
Proper Treatment ◽  
Uncertainty Estimates ◽  
Qualitative Uncertainty ◽  
Precautionary Measures ◽  
Uncertainty Information ◽  
Risk Assessment And Management

It is recognised that there is a need for a proper treatment and transparency of uncertainty in risk assessment and management, especially in view of the upcoming proposed new chemical policy REACH, which delegates the responsibility for conducting risk assessments to industry. The current EU risk assessment for new and existing substances is largely deterministic and prudential measures are implicitly embedded in calculation schemes and rules. In this paper, a more probabilistic approach to risk assessment is advocated. The advantage is twofold: 1) inherent variability and other uncertainty pertaining to exposure and effects are transparently taken into account, while at the same time 2) issues of caution are explicitly transferred to the risk management phase. The result of a probabilistic risk assessment as suggested is improved transparency with quantitative and qualitative uncertainty estimates. Such uncertainty information can be used to discuss precautionary measures in the context of risk management.

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