Jixie qiangdu (Apr 2024)
RESEARCH ON THE REMAINING INTENSITY OF PIPELINE CORROSION BASED ON IWOA-LSSVM
Abstract
In response to pipeline corrosion surplus intensity, a surplus intensity prediction method based on the Improved Whale Optimization Algorithm (IWOA ) -Least Square Support Vector Machine (LSSVM) combination algorithm model. Firstly the influencing factors of the surplus intensity of pipeline corrosion. On this basis, the theoretical introduction of the LSSVM and IWOA were analyzed was introduced to propose a combination method of the model. Taking the L245N material pipeline of a certain oil field in our country as an example, the use of some pipes to corrode the remaining strength and its influencing factors to train the combination model, and predict another part of the data. Essence studies have shown that the IWOA-LSSVM model proposed at the institute was in the process of conducting pipeline corrosion surplus intensity predictions. Its average root error is 0.323 5%, the average relative error is 2. 17%, and the fitting superiority is 0.988. The three evaluation indicators are better than the PSO-LSSVM model and the WOA-LSSVM model. Therefore, using the IWOA-LSSVM model can accurately predict the remaining intensity of pipeline corrosion, and then provide data support for the maintenance and replacement of pipelines.
