摘要
为实现刮板输送机圆环链轻量化,同时改善链环间的接触状态,采用ANSYS Workbench对圆环链进行有限元接触分析,并运用拓扑优化结合响应面优化方法对链环结构进行了优化研究。研究结果表明:在圆环链受拉过程中,在链环间的接触部位以及链环直圆柱和圆环间的过渡连接部位存在明显的应力集中现象,等效应力和等效应变的最大值分别为400.04MPa和0.00195。拓扑优化在不损害链环刚度的前提下使链环质量由2.841kg降为2.733kg,减少了3.80%,但未改善其接触状态;在拓扑优化的基础上利用响应面优化对链环进行二次优化,链环自重降为2.743kg,降低了3.45%,同时链环的最大等效应力和最大等效应变也分别降低了6.08%和6.67%,改善了接触状态。
In order to lighten the round link chain of the scraper conveyor and improve the contact state between the links, ANSYS Workbench was used to carry out finite element contact analysis on the round link chain, and the topology and response surface method was used to optimize the chain link structure. The results show that: during the stretching process of the round link chain, there is obvious stress concentration phenomena at the contact part between the two links and the transition part between the straight cylinder and the ring of the link, and the maximum values of equivalent stress and equivalent strain are 400.04 MPa and 0.00195, respectively. Without damaging the stiffness of the chain link, the mass of the chain link is reduced by 3.80%, from 2.841 kg to 2.733 kg, which does not improve its contact state;on the basis of topology optimization, response surface optimization is used to further optimize the chain link, which reduces another 3.35% of the mass to 2.743 kg, and meanwhile, improves the contact state, bringing down the maximum equivalent stress and equivalent strain of the link by 6.08% and 6.67%, respectively.
作者
梁超
李博
王子升
高宇杰
李嘉浩
王学文
LIANG Chao;LI Bo;WANG Zi-sheng;GAO Yu-jie;LI Jia-hao;WANG Xue-wen(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of Fully Mechanized Coal Mining Equipment,Taiyuan 030024,China)
出处
《煤炭工程》
北大核心
2022年第7期134-139,共6页
Coal Engineering
基金
国家自然科学基金资助项目(51875386,51804207)
山西省“1331”工程资助
关键词
刮板输送机
圆环链
有限元法
拓扑优化
响应面优化
scraper conveyor
round link chain
finite element method
topology optimization
response surface optimization
