透水框架尺寸对减速效果影响的建模与仿真
Modeling and simulation of the effect of permeable frame size on reducing the speed
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摘要: 采用机理分析的方法,推导相关物理及力学公式,得出曼宁系数与四面六边透水框架尺寸的关系,再由传递性得到框架长的平方与减速率呈正相关,得到它们的关系表达式为η=Aa2+Ba+C(A,B,C系数常量).通过水槽实验,对测得的数据进行数据拟合,结果显示与机理分析得出的结论相同.本模型科学、严密,提高了实验分析所得结果的准确性,可用于实践.Abstract: By analyzing the mechanism the relevant physical and mechanical formula that Manning's relationship with the first draw frame size were derived,and then permeable frame length was positively correlated with the rate of deceleration was gotten by the transitive,and their relationship expression was η=Aa2+Ba+C(A,B,C coefficients are constants) was finally gotten.Through the relevant tank test, the experimental data could be measured,which was obtained for the experimental data fitting,and the same results and conclusions of the analysis mechanism were found.Advantage of this model was a mathematical method of analysis and data fitting mechanism,which improved the accuracy of the original analysis of the results of the experiment,and therefore could be used in practice.
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Key words:
- permeable frame size /
- slowing effect /
- mathematical model /
- mechanism analysis
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