基于PSO的波纹管结构完整性设计

Based on PSO ripple tubular construciton integrity design

作为工程上应用广泛的波纹管,其结构完整性设计即是在满足疲劳寿命、强度、稳定性、刚度、生产工艺及补偿量的条件下,设计合理的波纹管结构参数。以单位重量下波纹管的补偿量最大为目标,建立波纹管结构完整性优化设计模型,采用优化领域的最新研究方法—粒子群算法(PSO)实现其结构参数优化设计。并给出了具体应用算例,其结果显示使用方法设计出的波纹管性能比在用的波纹管性能更佳,表明提出的波纹管结构完整性优化设计模型正确,使用PSO法求解波纹管结构优化设计高效、可行。

The structural integrity design of bellow which is widely used in engineering.fields is discussed in which fatigue life, strength, stability, stiffness, manufacturing technology, economy and equivalent axial movement under the work condition should be satisfied A bellow optimization design model of structural integrity is proposed the objective function is the maximum of bellow equivalent axial movement per weight unit. A n advanced optimization approach-Particle Swarm Optimization（ PSO ） is applied to implement the bellow design, and some engineering numerical examples are also given. The results show that the bellows designed by the proposed approach have better performance and are more economical than the bellows in-service, and the bellow structural optimization design by PSO is valid and efficient.