| 张宏,王永安,田树军,曹宇宁.以CFD方法研究液压集成块设计策略[J].,2010,(1):70-74 |
| 以CFD方法研究液压集成块设计策略 |
| Study of design strategy for hydraulic manifold block by CFD method |
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| DOI：10.7511/dllgxb201001014 |
| 中文关键词: 液压集成块 CFD 性能约束 结构约束 设计策略 |
| 英文关键词: hydraulic manifold block CFD performance constraint structural constraint design strategy |
| 基金项目:国家自然科学基金资助项目50375023. |
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| 摘要点击次数: 1236 |
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| 中文摘要: |
| 为使设计的液压集成块具有良好的通流品质，运用计算流体动力学 CFD 方法研究了其流道内部的流动特性．研究结果表明，孔道的布局及连通关系设计对块体性能优劣产生重要影响．在布局上具有相似性的孔道连通结构，应优先选择同面或邻面的布局方式；为提高孔道通流品质，根据工艺孔道结构与流道压降之间的关系，提出满足结构需求前提下缩短工艺孔道长度、增大孔径的优化设计方向，并通过计算低雷诺数局部阻力系数对直角转向的性能品质影响进行直角转向优化设计．从性能角度确立了集成块结构优化设计策略，为液压集成块性能约束与结构约束相结合进行全局性寻优设计奠定了基础． |
| 英文摘要: |
| To design hydraulic manifold block (HMB) with high through-flow quality, calculated fluid dynamic (CFD) method is utilized to study the flow characteristics for internal channel. The study results show that the layout and connection relationship of the channel has great influence on the performance of HMB. In the layout way which has a similar structure of channel connectivity, priority should be given to the same surface or neighborhood surfaces. To improve the quality of channel flow, according to the relationship of craft pore structure and pressure drop, the optimal design direction is put forward, which includes reducing the length of craft pore, increasing the craft pore diameter and so on. And then, by calculating the local resistance coefficient with low Reynolds number on the performance of right-angle turn, the design of right-angle turn is optimized. HMB structural optimization design strategy is established from a performance point, which makes foundation for the overall optimization design of HMB combined with performance constraints and structural constraints. |
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