纺织学报 ›› 2017, Vol. 38 ›› Issue (08): 132-138.doi: 10.13475/j.fzxb.20160904207

• 机械与器材 • 上一篇    下一篇

纤维定量检测系统中烧杯组件液体晃动动态特性与响应

  

  • 收稿日期:2016-09-22 修回日期:2017-05-10 出版日期:2017-08-15 发布日期:2017-08-10

Dynamic characteristics and response of fluid  sloshing in beaker assembly in blended fabric quantitative analysis system

  • Received:2016-09-22 Revised:2017-05-10 Online:2017-08-15 Published:2017-08-10

摘要:

为减少人工操作的危险性,并增加纤维定量检测系统中烧杯组件运行过程的稳定性,根据实验实际需求设计运行工况,通过理论分析对单个烧杯中液体运用Fluent 软件进行不同工况下的晃动动力学特性模拟。模拟结果显示,3种工况下液体都没有飞溅出烧杯,且烧杯底部受到液体晃动产生正弦形式的压强作用。再根据烧杯中液体晃动结果,运用ANSYS对组件中托板钢丝网进行静力分析和谐响应分析。结果表明,烧杯内液体晃动频率并没有达到钢丝网固有频率,烧杯组件运行过程中动态特性影响较小,能够保证运行的平稳,说明烧杯组件结构参数设计合理,运行工况符合实际需求。

关键词: 液体晃动动力学模拟, 谐响应分析, 烧杯组件, 混纺纤维定量检测系统

Abstract:

In order to reduce the risk of manual operation and improve the stability of the beaker assembly in blended fabric quantitative analysis system, operating conditions were designed firstly. Then, according to theoretical analysis, dynamic characteristics of fluid sloshing in single beaker were simulated by FLUENT for each operating condition. Results indicate that no water splashed out of the glass beaker, and the beaker bottom is subjected to the pressure action in the form of sine due to fluid sloshing. Finally, static analysis and harmonic response analysis of supporting steel mesh plate were carried out by ANSYS according to the liquid sloshing result.  Results show the fluid sloshing frequency is not fit with the inherent frequency of supporting plate, and the dynamic deformation in the operation process of the beaker assembly and operationc conditions are reasonable and desirable.

Key words: dynamic somulation of fluid sloshing, harmonic response analysis, beaker assembly, blended fabric quantitative analysis system

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