In any organization, the importance of failuremanagement cannot bementionedby a single word. However,most failure analysis is dominated by themanufacturing sector, despite the increasing importance of the service sector. In response, this paper proposes a systematic approach for identifying and evaluating potential failures using a service-specific failure mode and effect analysis (service-spec...

Wind turbine failure and downtime can often compromise the profitability of a wind farm due to their high impact on the operation and maintenance (O&M) costs. Early detection of failures can facilitate the changeover from corrective maintenance towards a predictive approach. This paper presents a cost-e↵ective methodology to combine various alarm analysis techniques, using data from the Supervi...

Unreinforced concrete pipes basically can fail in two modes: beam failure and ring failure. According to the existing test data, the nom· inal stress at beam failure is much less than that at ring failure. Fur· thermore, the nominal stress for either failure mode decreases as the pipe diameter or thickness increases. These size effects can be de· scribed in a unified manner by means of the rece...

Unreliable failure detectors are abstract devices that, when added to asynchronous distributed systems, allow to solve distributed computing problems (e.g. Consensus) that otherwise would be impossible to solve in these systems. This paper focuses on two classes of failure detectors defined by Chandra and Toueg, namely, the classes denoted 3P (eventually perfect) and 3S (eventually strong). Bot...

In order to develop a Failure Analysis Expert System (FAES), with application for onshore pipeline transporting oil and gas products, the work was split in two parts. Previously failure database and knowledge acquisition method were described in the first part whereas the present, part II, the End-User interface and Algorithm are explained in detail. The proposed Failure Analysis Expert System ...

The purpose of this study is to discuss the impact fatigue failure mechanism of a suction valve that involves the fracture with fragments torn off from the edge or surface. The shape and dimensions of the test specimen and stopper were made the same as those of the suction valve and stopper in an actual compressor. The specimen was operated by short-duration compressed air pulses, and struck ag...

Safety instrumented systems (SISs) are becoming increasingly complex and the proportion of programmable electronic parts is growing. The IEC 61508 global standard was established to ensure the functional safety of SISs, but it was expressed in highly macroscopic terms. This study introduces an evaluation process for hardware safety integrity levels through failure modes, effects, and diagnostic...

Quality and reliability of product and manufacturing process are the critical factors to the product development. However, to ensure good quality and reliability of the product and to predict any inadequacies of the product, an efficient quality system must be established at the earliest stage of the product development process. Failure Mode and Effect Analysis (FMEA) is a popular quality tool ...