基于UG的轻量化焊接桁架结构优化研究
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摘要
以三角极简稳定支撑为基础,由高压电塔与埃菲尔铁塔启发设计灵感设计了桁架结构。在保证焊点分布及数量合理的条件下,获得了最优结构,并利用UG对其承载性能进行仿真模拟。结果表明当桁架型材尺寸为(■6+■8)时,单位承载力为267 N/g,其破坏位置位于底部节点。同时,实验测得其最大承载力约为45 kN,承载力与质量之比为250 N/g,具有良好的性价比。
The truss structure was designed based on triangular-minimally stable bracing and inspired by the design of high voltage tower and Eiffel tower.Under the condition that the distribution and quantity of solder joint are reasonable,an optimized structure was obtained.UG was used to simulate its bearing performance.The results show that when the size of truss rods are(■6+■8),its unit bearing capacity is 267 N/g,and the failure position is located at the bottom joint.Meanwhile,the experimental results show that the maximum bearing capacity is about 45 kN.The ratio of bearing capacity to mass is 250 N/g,which indicates a good performance-price ratio.
The truss structure was designed based on triangular-minimally stable bracing and inspired by the design of high voltage tower and Eiffel tower.Under the condition that the distribution and quantity of solder joint are reasonable,an optimized structure was obtained.UG was used to simulate its bearing performance.The results show that when the size of truss rods are(■6+■8),its unit bearing capacity is 267 N/g,and the failure position is located at the bottom joint.Meanwhile,the experimental results show that the maximum bearing capacity is about 45 kN.The ratio of bearing capacity to mass is 250 N/g,which indicates a good performance-price ratio.
引文
[1]刘光伟, 卿展波, 张兴清. 桁架设计一般方法和误区探讨[J]. 山西建筑, 2011, 37(17):39-41.
[2]CHEN J J, CHE J W, SUN H A, et al. Probabilistic dynamic analysis of truss structures[J]. Structural Engineering and Mechanics, 2002, 13(2):231-239.
[3]WU C Y, TSENG K Y, Truss structure optimization using adaptive multi-population differential evolution[J]. Structural and Multidisciplinary Optimization,2010,42(4):575-590.
[4]LI L J, XU X T, LIU F, et al. The group search optimizer and its application to truss structure design[J]. Advances in Structural Engineering, 2010,13(1): 43-51.
[5]CRAIG E R, Truss structure, US4282619A [P]. 1981-08-11.
[6]KALYANMOY D, SURENDRA G. Design of truss-structures for minimum weight using genetic algorithms[J]. Finite Elements in Analysis and Design, 2011, 37(5):447-465.
[7]杨建国, 吴立权. 铝合金桁架天桥载荷试验及承载分析[J]. 结构工程师, 2011, 27(S1):280-284.
[8]农琪. 6A02与6061铝合金焊接工艺试验与研究[J]. 金属铸锻焊技术,2011,40(23):156-157.
[9]LEI P, LI L, TENG L, et al. An efficient truss structure optimization framework based on CAD/CAE integration and sequential radial basis function metamodel[J]. Structural and Multidisciplinary Optimization,2014, 50(2):329-346.
[10]陈艺, 张子军, 潘明. 结构优化设计&有限元分析在机械设计中的应用:ABAQUS分析桁架结构[J]. 现代农业装备, 2007(5):40-46.
[11]王栋, 张卫红, 姜节胜. 桁架结构形状与尺寸组合优化[J]. 应用力学学报, 2002,19(3):72-76.
[2]CHEN J J, CHE J W, SUN H A, et al. Probabilistic dynamic analysis of truss structures[J]. Structural Engineering and Mechanics, 2002, 13(2):231-239.
[3]WU C Y, TSENG K Y, Truss structure optimization using adaptive multi-population differential evolution[J]. Structural and Multidisciplinary Optimization,2010,42(4):575-590.
[4]LI L J, XU X T, LIU F, et al. The group search optimizer and its application to truss structure design[J]. Advances in Structural Engineering, 2010,13(1): 43-51.
[5]CRAIG E R, Truss structure, US4282619A [P]. 1981-08-11.
[6]KALYANMOY D, SURENDRA G. Design of truss-structures for minimum weight using genetic algorithms[J]. Finite Elements in Analysis and Design, 2011, 37(5):447-465.
[7]杨建国, 吴立权. 铝合金桁架天桥载荷试验及承载分析[J]. 结构工程师, 2011, 27(S1):280-284.
[8]农琪. 6A02与6061铝合金焊接工艺试验与研究[J]. 金属铸锻焊技术,2011,40(23):156-157.
[9]LEI P, LI L, TENG L, et al. An efficient truss structure optimization framework based on CAD/CAE integration and sequential radial basis function metamodel[J]. Structural and Multidisciplinary Optimization,2014, 50(2):329-346.
[10]陈艺, 张子军, 潘明. 结构优化设计&有限元分析在机械设计中的应用:ABAQUS分析桁架结构[J]. 现代农业装备, 2007(5):40-46.
[11]王栋, 张卫红, 姜节胜. 桁架结构形状与尺寸组合优化[J]. 应用力学学报, 2002,19(3):72-76.