首页|基于拓扑优化的变截面铸造式动臂结构设计

基于拓扑优化的变截面铸造式动臂结构设计

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研究发现,装载机传统板式动臂存在较大程度的强度和材料冗余现象.这里以某5t装载机为载体,以轻量化为目标,对动臂进行了结构优化.结合结构拓扑优化基本原理,在对原动臂有限元分析和拓扑优化的基础上,提出并设计了一种新型变截面铸造式装载机动臂结构,运用Ansys对优化动臂进行有限元强度验证,并通过应力应变实验验证仿真模型的正确性.仿真和实验结果表明,在满足结构刚度和强度条件下,动臂质量较优化前1035kg减重19.7%,达到了轻量化的目标.
Structural Design of Variable Cross-Section Casting Boom Based on Topology Optimization
The study found that the traditional plate boom of the loader has a greater degree of strength and material redundan-cy.In this paper,a 5t loader is used as the carrier,and the boom is optimized in terms of weight reduction.Combining the basic principles of structural topology optimization.Based on the finite element analysis and topology optimization of the original boom,a new type of variable cross-section casting type loading mobile boom structure is proposed and designed.Use Ansysto ver-ify the finite element strength of the optimized boom.And verify the correctness of the simulation model through stress and strain experiments.Simulation and experimental results show that under the conditions of structural rigidity and strength.The weight of the boom is reduced by19.7%compared with the1035kgbefore the optimization,achieving the goal of lightweight.

LightweightTopology OptimizationCasting BoomStress Strain Experiment

程鑫、刘昕晖、陈伟、杨子康

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吉林大学机械与航空航天工程学院,吉林 长春 130022

轻量化 拓扑优化 铸造动臂 应力应变实验

2024

机械设计与制造
辽宁省机械研究院

机械设计与制造

CSTPCD北大核心
影响因子:0.511
ISSN:1001-3997
年,卷(期):2024.(7)
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