Vibration fatigue in process pipework: A risk based assessment methodology
نویسنده
چکیده
Risk Based Inspection (RBI) has been used for some time to optimise inspection schedules based on assessing the risk of various corrosion related degradation mechanisms. However, one degradation mechanism that has been traditionally overlooked is that of vibration induced fatigue. A proactive methodology for assessment of vibration induced fatigue was published in 2000 as part of a Joint Industry Project to identify, using a risk based approach, which systems would be at risk from vibration induced fatigue. This paper describes the use of the overall risk based methodology and the key learning points in its application over the last 6 years.
منابع مشابه
Frequency Assessment of Loss of Containment including the Effects of Measures of Risk Prevention
This paper presents a method for the quantification of the effects of measures of risk prevention of the frequency for rupture of pipework. Some methodologies, given in the literature for this purpose, assume that each plant under analysis is characterized by the same combinations of causes of failure and prevention mechanisms but this assumption is not always true. The approach suggested here ...
متن کاملEnhancing offshore process safety by selecting fatigue critical piping locations for inspection using Fuzzy-AHP based approach
Topside piping is the single largest source of the hydrocarbon releases (HCRs) on the offshore oil and gas (OOG) platforms in the North Sea region. Consequently, if the leaked hydrocarbons from the process pipework are ignited, it may lead to a catastrophic event, thereby causing significant economic losses, environmental damage, and posing serious threat to the safety of the onboard personnel....
متن کاملA risk model for cloud processes
Traditionally, risk assessment consists of evaluating the probability of "feared events", corresponding to known threats and attacks, as well as these events' severity, corresponding to their impact on one or more stakeholders. Assessing risks of cloud-based processes is particularly difficult due to lack of historical data on attacks, which has prevented frequency-based identification...
متن کاملEMG-based Fatigue Assessment During Endurance Testing With Different VT Protocols
BACKGROUND: Muscle fatigue can be defined as the failure of a muscle to maintain a reasonably expected force output. The multivariate approach to fatigue assessment is used because the multiple (EMG) feature provides more information than anyone. OBJECTIVE: This study presents a method of assessing muscle fatigue during endurance testing at 50% maximal voluntary contraction (MVC) using electro...
متن کاملVibration reliability test and finite element analysis for flip chip solder joints
Vibration fatigue test and analysis methodology for flip chip solder joint fatigue life assessment have been developed by performing vibration tests with constant G-level and varying G-level input excitation. The linear cumulative damage analysis method (Miner’s rule) predicts non-conservative result for vibration fatigue life of flip chip solder joint. Finite element analysis (FEA) using a glo...
متن کامل