结合粒子群算法的双涡圈涡旋盘动力特性优化研究  

Research on Dynamic Characteristics Optimization of Double-scroll Compressors with Particle Swarm Optimization

作　　者：刘兴旺[1] 刘世成 韩向阳 杨欢 LIU Xingwang;LIU Shicheng;HAN Xiangyang;YANG Huan(School of Petrochemical Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,兰州730050

出　　处：《机械科学与技术》2023年第11期1844-1851,共8页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51265026);压缩机技术国家重点实验室开放基金项目(SKL-YSJ202110)。

摘　　要：满足一定热力性能的双涡圈涡旋盘的几何参数可有无限多组,而由不同几何参数构建的涡旋盘的动力性能却差别巨大,如何通过优化涡旋盘的几何参数来提高其动力性能成为设计的难点。为此,提出了一种基于粒子群算法的涡旋盘几何参数优化方法。以离心惯性力为优化目标,运用MATLAB软件对其进行迭代优化,并分析了型线几何参数对离心惯性力、轴向气体力、径向气体力、切向气体力以及倾覆力矩的影响。结果表明:优化后涡旋盘所受离心惯性力减小,高转速下离心惯性力减小幅度更大。优化后涡旋盘所受轴向气体力减小,轴向气体力脉动幅度变化不明显。而一味追求较小的的涡旋盘直径,会导致涡旋盘受到的倾覆力矩增大。该优化方法可为双涡圈涡旋盘的设计提供参考。The geometric parameters of the double-scroll compressor that meets a certain thermal performance can have an infinite number of groups,but the dynamic performance of scrolls constructed from different geometric parameters is very different.How to optimize the geometric parameters of the scroll to improve its power performance becomes a design difficulty.For this reason,an optimization method of scroll geometric parameters based on particle swarm optimization is proposed.Taking the centrifugal inertial force as the optimization objective,it is optimized by MATLAB software,and the influence of the geometrical parameters of the profile on the centrifugal inertial force,axial gas force,radial gas force,tangent gas force and capsizing moment is analyzed.The results show that the centrifugal inertial force experienced by the scroll is reduced after optimization,and the centrifugal inertial force decreases even more at high speed.After optimization,the axial gas force received by the scroll is reduced,and the axial gas force pulsation amplitude does not change significantly.And blindly pursuing a smaller scroll diameter will increase the capsizing moment of the scroll.This optimization method can provide a reference for the design of the double-wrap scroll.

关 键 词：粒子群算法 涡旋盘 参数优化 动力性能 

分 类 号：TH45[机械工程—机械制造及自动化]