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| 基于双向渐进结构优化方法的双螺杆榨油机榨笼优化设计 |
| Optimization design of bar-cage of twin-screw press based on BESO |
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| DOI： |
| 中文关键词: 双螺杆榨油机 榨笼 拓扑优化 双向渐进结构优化方法 |
| 英文关键词:twin-screw press bar-cage topology optimization bi-directional evolutionary structural optimization |
| 基金项目: |
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| 中文摘要: |
| 双螺杆榨油机中榨笼作为压榨部分的关键部件，其对榨膛内挤油压力的形成和对两根螺旋轴的支撑起到关键作用。针对目前传统经验设计的榨笼尺寸和质量偏大，造成制造材料浪费的问题，将双向渐进结构优化方法（Bi-Directional Evolutionary Structural Optimization, BESO）应用到榨笼的设计中。以榨笼的刚度最大化为目标，以体积为约束条件，在Abaqus环境下，采用Python程序实现BESO优化算法，设计出新的榨笼结构。通过优化设计前后的对比分析表明，新的结构在满足强度要求的条件下，质量减少了35.1%。该优化分析方法为后续的榨笼设计提供了一种新思路。 |
| 英文摘要: |
| Bar-cage of twin-screw press is the key component, which plays a key role in forming the pressure of squeezing oil and supporting the two screw shafts. According to present problems of the traditional experience design, the size and weight of bar-cage are too large, which causes material waste.The bi-directional evolutionary structural optimization method (BESO) was applied to the design of the bar-cage. The optimization objective of design was the maximum stiffness for the bar-cage subjected to a volume constraint. The BESO was implemented with Python program in the Abaqus. Finally, a new bar-cage structure was designed. The comparative analysis of the new structure and original structure showed that the weight of new structure reduced by 35.1%, and it could also meet strength requirement.And a new thinking of the design of bar-cage was offered by this optimization analysis method. |
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