基于BP神经网络和粒子群算法的RTP管道参数优化研究
Research on RTP Pipeline Parameter Optimization Based on BP Neural Network and Particle Swarm Optimization Algorithm
文章建立连续玻璃纤维增强复合管(RTP)的三维有限元模型,通过参数化分析获得125组数据,并构建10-15-8-4结构的反向传播(BP)神经网络模型以实现承载能力的预测,同时采用改进的粒子群算法进行参数的反向优化设计。结果表明:BP神经网络对爆破压力的预测相对误差仅为3.7%,具有良好的预测精度。基于多约束优化的设计方案使管道的爆破压力从14.85 MPa提升至19.67 MPa,提高32.5%,同时将最大等效应力从610 MPa降低至579 MPa,降低5.1%,在保证结构安全性的前提下实现承载能力的显著提升。研究结果为RTP管道在海洋工程中的设计与应用提供参考。
The article established a three-dimensional finite element model of continuous glass fiber-reinforced composite pipe (RTP), obtained 125 sets of data through parametric analysis, and constructed a back-propagation (BP) neural network model with a 10-15-8-4 structure to predict the load-bearing capacity. Meanwhile, an improved particle swarm optimization algorithm was employed for the inverse optimization design of parameters. The results indicated that the relative error of the burst pressure prediction by the BP neural network was only 3.7%, demonstrating good prediction accuracy. The design scheme based on multi-constraint optimization increased the burst pressure of the pipe from 14.85 MPa to 19.67 MPa, with a 32.5% improvement, and decreased the maximum equivalent stress from 610 MPa to 579 MPa, with a 5.1% reduction, thereby significantly enhancing the load-bearing capacity while ensuring structural safety. The research findings provide a reference for the design and application of RTP pipeline in marine engineering.
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国家重点研发计划项目(2023YFC2810900)
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