Title: Risk assessment of failure in the assembly of rotors during manufacturing process - a case study
Authors: José Cristiano Pereira; Marcelo D. Fragoso
Addresses: Department of Systems and Control, National Laboratory of Scientific Computing, Petropolis, RJ 25651-075, Brazil ' Department of Systems and Control, National Laboratory of Scientific Computing, Petropolis, RJ 25651-075, Brazil
Abstract: This paper proposes a framework for identifying the most significant risks during rotor assembly process, based on Analytic Hierarchy Process (AHP) and Bayesian Belief Network (BBN). The assembly of rotors is a very critical process and risk assessment method is crucial to ensure operation safety. The application of the method revealed that the most significant risks are related to software malfunction, program failure, system function failure and poor integration of hardware and software. The paper proposes responses to these risks aiming at preventing the occurrence of failure. The analysis put forward here may be an invaluable source for maintenance professionals, safety engineers and decision makers in companies, in the sense that it augments their information and helps to identify critical risks in the rotor assembly process. The identification and prioritisation of risk factor makes it easier to allocate resources to prevent rotor failure and improve product quality and ensure organisation sustainability.
Keywords: risk assessment; Bayesian belief network; BNN; analytic hierarchy process; AHP; rotor assembly; product quality; organisation sustainability.
International Journal of Decision Sciences, Risk and Management, 2019 Vol.8 No.3, pp.172 - 196
Received: 19 May 2018
Accepted: 10 Dec 2018
Published online: 10 May 2019 *