基于惩罚函数法的针织圆纬机大鼎轻量化设计  

Lightweight Design of Tripod in Circular Weft Knitting Machine Based on SUMT

作　　者：顾立志 王冬[3] 刘晓波[1] 苏伟君 高善平 张森华 欧阳琳 兰潮麟 宋金玲 GU Lizhi;WANG Dong;LIU Xiaobo;SU Weijun;GAO Shanping;ZHANG Senhua;OUYANG Lin;LAN Chaolin;SONG Jinling(Key Laboratory of Virtual Manufacturing Technology of Fujian Universities,Quanzhou University of Information Engineering,Quanzhou 362000,China;College of Mechanical Engineering and Automation,Huaqiao University,Xiamen 361021,China;College of Mechanical Engineering,Jiamusi University,Jiamusi 154007,China;Fujian Baiyuan Intelligent Equipment Co.,Ltd.,Quanzhou 362005,China;Quanzhou Normal University,Quanzhou 362000,China)

机构地区：[1]泉州信息工程学院虚拟制造技术福建省高校重点实验室,福建泉州362000 [2]华侨大学机电及自动化学院,福建厦门361021 [3]佳木斯大学机械工程学院,黑龙江佳木斯154007 [4]福建佰源智能装备股份有限公司,福建泉州362005 [5]泉州师范学院物理与信息工程学院,福建泉州362000

出　　处：《机械工程师》2022年第10期1-3,7,共4页Mechanical Engineer

基　　金：福建省科技厅开放项目(JZK2017001);虚拟制造技术福建省高校重点实验室开放基金项目(Xnzz1801,Xnzz1803);泉州市高层次人才项目(2020C013R,2020C051);泉州市机械设计制造及其自动化顾立志工作室建设项目。

摘　　要：针织圆纬机的大鼎是织机的重要零件,是形成圆纬机构架、支承大鼎齿轮传动、保持机器工作刚度和避免振动的关键件。通常大鼎由HT250铸成,为减少铸造缺陷和保证机加质量,铸件尺寸较大,整体沉重,耗用更多的材料,增加其他件载荷,浪费能源。为解决此问题,文中运用最优化理论的惩罚函数法,以保证功能为约束条件、以相关几何特征为决策变量、以质量最小为评价目标,进行优化分析与设计,实现轻量化。实验研究表明,以某一型号的圆纬机(质量为465.1 kg)大鼎为例,减重96.21 kg,轻量化20.69%,同时保证机器的优质功能。The tripod of circular weft knitting loom is an important part of the machine.It plays the fatal role in forming the frame,supporting the tripod gear transmission,maintaining the working stiffness and avoiding vibration.Generally,the tripod is cast by HT250.In order to reduce casting defects and ensure machining quality,the casting size is large and the overall weight is heavy,which consumes more materials,increases the load of other parts and wastes energy.To solve this problem,this paper uses the SUMT(Sequential Unconstrained Minimization Technique)to optimize the analysis and design of the tripod,with the function promise as the constraint condition,relevant geometric characteristics as the decision-variables,and minimum mass as the evaluation objective,to achieve lightweight.The experimental results have shown that the weight of the tripod for a certain type of the circular weft knitting loom(465.1 kg)is reduced by 96.21 kg and the light-weighing rate reaches 20.69%,while the high quality function of the machine is guaranteed.

关 键 词：最优化理论 轻量化设计 惩罚函数法 圆纬机大鼎 约束条件 

分 类 号：TS112.7[轻工技术与工程—纺织材料与纺织品设计]