第2个回答 2008-06-22
Pump and fans now have become an integral part of the production machinery, in the national economy of all the parties have their shadow, so understanding their properties for the production of little help, not say. The pump and fan performance parameters including flow, head (full pressure), efficiency, power and NPSH, these performance parameters in accordance with their respective drawn into the relationship between the curve, identify function expression, the research pump and fan The performance will play a multiplier effect. Moreover, not just a single pump or fan, pump or blower on the joint running of the study, the use of such methods can also play a very good results. In the fitting of the actual operation, using Matlab graphics software and the use of least squares spline interpolation function is more convenient and have good results in the means.
第3个回答 2008-06-22
The pump and the air blower already became present to produce the indispensable machinery, each has their form in national economy's all quarters, therefore understood that their performance is not big regarding the production help. The pump and air blower's performance parameter mainly includes the current capacity, lifting (the entire pressure), the efficiency, the power and the net positive suction head, acts according to between each one's relations these performance parameter to draw up the curve, discovers the function expression, regarding will study the pump and air blower's performance will have the twice the result with half the effort effect. Moreover, is not only Shan Taibeng or the air blower work, to the pump or air blower's union movement's research, uses this method also to be able to have the very good effect. In fitted curve's actual operation, with the aid of the Matlab graphics software use least squares method and three transect interpolating function is more convenient, and has the good results method.