In practice, companies’ efforts to implement RBI have been blocked by the complexity of the risk analysis step. API developed usable RBI tools that companies can use with reasonable cost and effort and they published these tools in API P 581 Risk-Based Inspection Base Resource Document.
Inspection can reduce risk mainly by reducing the probability of failure. This is done by increasing the accuracy of damage rate data by selecting more effective inpsection method, determining the the right area of inspection, and controlling inspection intervals.
Solving a CFD based multi-objective optimization problem is a computational time and resource consuming task. Efficiency is main issue here.Efficiency can be achieved by carefully choosing the optimization method preferring small population operating method and good geometrical modelling technique.
Multiobjective optimization is optimization case where there are more than one objective variable that has to be solved simultaneously. This kind of problem is difficult to solve because of the presence of conflict among the objectives.