摘要
为解决灌区弧形闸门自身质量大,生产、安装不便等问题,以农业灌区为研究对象,建立灌区渠首弧形闸门与灌溉水流的流固耦合动力学求解程序。针对灌区渠首弧形闸门流固耦合的求解结果,应用ANSYS二次开发语言APDL,建立固体各向同性惩罚微结构模型(SIMP)变密度法的拓扑优化设计程序,以单元相对密度为设计变量、结构柔度为目标函数,得到新的闸门支臂布置形式。结果表明:对比闸门拓扑优化前后模型的流固耦合结果,最大变形减小54.2%,整体结构自身质量减轻31.2%。证明拓扑优化设计在减轻自身质量的同时提升了结构刚度。
In order to solve the problems of self-importance,inconvenience of production and installation of curved gates in irrigation districts,this research took the agricultural irrigation area as the object to establish a solving dynamics solving program of fluid-structure interaction between radial head gates and irrigation water flow in irrigation districts.Based on the solution results of the fluid-structure interaction of the radial head gates in the irrigation area,ANSYS secondary development language APDL was applied to establish the topology optimization design procedure of the variable density method of the SIMP interpolation model.Using the relative density of the unit as the design variable and the structural flexibility as the objective function,a new arrangement form of the gate support arm was obtained.The fluid-structure interaction results of the model before and after the gate topology optimization were compared.The results showed that the maximum deformation was reduced by 54.2%and the overall structural deadweight was reduced by 31.2%.Topology-optimized design wasdemonstrated to enhance the structural stiffness while reducing the deadweight.
作者
张中昊
冮春旭
汪可欣
ZHANG Zhonghao;GANG Chunxu;WANG Kexin(School of Water Conservancy and Civil Engineering,Northeast Agricultural University,Harbin 150030,China)
出处
《东北农业大学学报》
CSCD
北大核心
2024年第8期222-231,共10页
Journal of Northeast Agricultural University
基金
黑龙江省优秀青年教师基础研究支持计划。
关键词
灌区弧形闸门
流固耦合
SIMP
拓扑优化
radial gate in irrigation areas
fluid-structure interaction
SIMP
topological optimization
