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- Title
高速逆流色谱仪行星架结构设计与拓扑优化.
- Authors
殷国富; 陈箭峰; 陈海军; 吴宇轩; 刘海淞
- Abstract
High speed countercurrent chromatography has unique advantages in resolving the bottleneck of separation and purification of active ingredients in the field of biomedicine, such as no irreversible adsorption, high sample recovery and good tolerance. Therefore, it is necessary to improve the separation and purification efficiency of the existing small high speed countercurrent chromatograph and develop an industrial high speed countercurrent chromatograph with high efficiency, fast and large capacity. The structure of planet carrier of large-capacity high speed countercurrent chromatograph was taken as the research object. Firstly, the three-dimensional structure of the planet carrier was designed in the soft-ware. Secondly, the finite element model was established on the platform of hyper Works. Static analysis and modal analysis were carried out by applying loads and constraint conditions on the planetary frame according to the characteristics of forces. It was found that the maximum deformation and maximum equivalent stress are both small, and the first order natural frequency is high. The structure can be further optimized. Based on the SIMP interpolation model of variable density method, a mathematical model of multi-objective function for improving stiffness and reducing flexibility was established by using compromise programming method. The structural topology optimization of the planet carrier was carried out, the material distribution was more reasonable, and the optimized structure was obtained. Based on the optimization results, the new planet carrier was redesigned, the dynamic and static simulation analysis was carried out again to ensure the rationality of the improved design of planet carrier structure. The research showsed that results of simulation analysis validate the safety and reliability of the structure. The optimized planet carrier can meet the requirements in various performances, and the quality was reduced by 13.1%. A new structure that is superior to the original structure was obtained.
- Publication
Advanced Engineering Science / Gongcheng Kexue Yu Jishu, 2020, Vol 52, Issue 5, p209
- ISSN
2096-3246
- Publication type
Article
- DOI
10.15961/j.jsuese.201900704