Abstract
Finite element model of big arm of MD-1200YJ palletizing robot was established,the accuracy of the finite element model was verified by modal test.By static analysis taking into account dynamic factors, constrained modal analysis, vibration response test and frequency response analysis to determine to use minimal mass, maximizing the first and second natural frequency, minimizing the maximal stress, minimizing the maximal deformation and as the optimization objectives. Taking structure parameters as design variables and boundary conditionsof design variables as the constraint conditions, the approximation models of objective functions and constraint functions were established by the Box-Behnken and the RSM. The optimal solution was obtained by using NSGA-II algorithm. The results show that, in the case of the first two natural frequencies were increased, the structural stiffness and vibration stability were improved, the influence of vibration on fatigue damage of parts was reduced, meanwhile the maximum stress and deformation within allowable values range, the mass reduction was 11.3%. The validity of this lightweight design method was verified.
Publication Date
2-18-2023
First Page
71
Last Page
76,119
DOI
10.13652/j.issn.1003-5788.2020.10.014
Recommended Citation
HE, Ying; GAO, Han; MA, Chao; and GU, Li
(2023)
"Multi-objective lightweight design for big arm of MD-1200YJ palletizing robot,"
Food and Machinery: Vol. 36:
Iss.
10, Article 14.
DOI: 10.13652/j.issn.1003-5788.2020.10.014
Available at:
https://www.ifoodmm.cn/journal/vol36/iss10/14
References
[1] 贺莹,梅江平,孙玉德,等.MD-1200YJ码垛机器人腰部支架的多目标结构优化设计[J].食品与机械,2018,34(11):89-95.
[2] NING Kun-peng,LI Dong-bo,HE Fei,et al.Research on the structural optimization design of ER300 palletizing robot[J].The Open Automation and Control Systems Journal,2015,7:1 405-1 414.
[3] 郭大宝,梅涛,骆敏舟,等.老人服务机器人机械臂的动力学分析与轻量化设计研究[J].中国机械工程,2012,23(10):1 146-1 150.
[4] 张邦成,谭海东,邢天羿,等.微小型救援机械手的轻量化设计[J].制造业自动化,2014,36(15):129-132.
[5] 曹志民,熊禾根,陶永,等.搬运码垛机器人小臂动力学分析[J].制造业自动化,2013,35(11):5-7,29.
[6] 田野,陈晓鹏,贾东永,等.仿人机器人轻型高刚性手臂设计及运动学分析[J].机器人,2011(3):332-339.
[7] LIU Yan-jie,WU Ming-yue,WANG Gang,et al.Method for structural optimization design of wafer handling robot arms[J].Journal of Mechanical Engineering,2015,51(1):1-9.
[8] 王春华,安达,赵东辉.工业机器人臂部静动态多目标拓扑优化设计研究[J].机械科学与技术,2016,35(2):241-246.
[9] 贺莹,梅江平,方志炜,等.一种高速重载码垛机器人机座的多目标优化设计[J].机械设计,2017,34(7):1-9.
[10] 梅江平,臧家炜,乔正宇,等.三自由度Delta并联机械手轨迹规划方法[J].机械工程学报,2016,52(19):9-17.
[11] 王启义.中国机械设计大典:第2卷[M].南昌:江西科学技术出版社,2002:452-844.
[12] DEB K,PRATAP A,AGARWAL S,et al.A fast and elitist multiobjective genetic algorithm:NSGA-II[J].IEEE Transcations on Evolutionary Computation,2002,6(2):182-197.