基于遗传算法的不规则天然气管道支承件位置避振优化
The optimization of position vibration avoidance for irregular natural gas pipeline supports based on genetic algorithm
王东海 1孟彤 1崔媛智1
作者信息
- 1. 中国特种设备检测研究院 北京 100029
- 折叠
摘要
以多支承的天然气管道为研究对象,在有限元建模过程中通过引入弹簧单元来模拟管道支承件的力学特性.在避振优化部分,以管道系统1阶固有频率最大为优化目标,将支承件位置转换为节点编号作为设计变量,支承件的可移动范围作为约束条件.通过遗传算法不断修正管道系统刚度矩阵,从而得到合理的管道支承件位置.
Abstract
The present study focuses on the analysis of a multi-supported natural gas pipeline,wherein a spring element is incorporated into the finite element modeling process to accurately simulate the mechanical characteristics of the pipeline support.The optimization objective in the vibration avoidance optimization is to maximize the natural frequency of the pipeline system.The design variable is converted into the node number representing the position of the supporting parts,while considering the movable range of the supporting parts as a constraint condition.The stiffness matrix of the pipeline system is continuously adjusted using a genetic algorithm to determine the optimal position for pipeline supports.
关键词
遗传算法/支承件位置/避振优化/有限元模型Key words
genetic algorithm/position of supporting parts/optimization of avoiding vibration/finite element model引用本文复制引用
出版年
2024
NETL
NSTL
万方数据