混凝土布料机主梁多目标优化  

Multi-Objective Optimization of the Main Beam of the Concrete Distributor

作　　者：张珂 雒笑阳 张世英 ZHANG Ke;LUO Xiaoyang;ZHANG Shiying(School of Mechanical Engineering,Shenyang Jianzhu University,Shenyang,China,110168;Northern Heavy Industries Group Co.Ltd.,Shenyang,China,110141)

机构地区：[1]沈阳建筑大学机械工程学院,辽宁沈阳110168 [2]北方重工集团有限公司,辽宁沈阳110141

出　　处：《沈阳建筑大学学报（自然科学版）》2022年第2期355-363,共9页Journal of Shenyang Jianzhu University：Natural Science

基　　金：“十三五”国家重点研发计划项目(2017YFC0704003);辽宁省自然科学基金指导计划项目(20180551119)。

摘　　要：目的研究优化混凝土布料机的结构性能,在保证满足混凝土布料机整机动静态性能的前提下,提高混凝土布料机一阶固有频率,减少主梁质量。方法对混凝土布料机进行建模,应用ANSYS workench作为分析工具,对混凝土布料机进行静力学分析;在ANSYS仿真软件的响应面优化模块中,对主梁参数变量进行设定,根据各试验设计点建立参数变量与优化目标之间的响应面模型;运用Screening算法以及MOGA算法对应力、一阶固有频率以及主梁质量进行多目标优化,通过对比得出最优解;对优化前的结构进行模态分析,对比优化前后混凝土布料机一阶固有频率以及主梁质量。结果通过优化算法得出了一组最优解,优化后的质量减少了11.5%,一阶频率提高了3.7%。结论优化得出的最优解可以在保证满足混凝土布料机整机动静态性能的前提下,提高了混凝土布料机一阶固有频率,减少了主梁质量,减少了制造成本,可为混凝土布料机的结构研究提供借鉴。The structural performance of the concrete distributor are studied and optimized in order to ensure the concrete distributor static and dynamic performance,and improve the concrete distributor first order inherent frequency,while reduce the weight of the main beam.The concrete distributor is modeled,and ANSYS workench is used as the analysis tool to analyze the statics of the concrete distributor;In the response surface optimization module of ANSYS simulation software,the parameter variables of the main beam are set,and the response surface model between the parameter variables and the optimization target is established according to each test design point;Screen algorithm and MOGA algorithm are used for multi-objective optimization of stress,first-order natural frequency and main beam quality,and the optimal solution is obtained through comparison;The modal analysis of the structure before and after optimization is carried out,and the first-order natural frequency of the concrete distributor and the mass of the main beam are compared before and after optimization.A set of optimal solutions is obtained through the optimization algorithm.The optimized mass is reduced by 11.5%,and the first-order frequency is increased by 3.7%.The optimal solution obtained can meet the purpose of increasing the first-order natural frequency of the concrete distributor and reducing the weight of the main beam under the premise of ensuring the overall dynamic and static performance of the concrete distributor.

关 键 词：混凝土布料机 主梁 模态分析 响应面优化 

分 类 号：TU64[建筑科学—建筑技术科学]