Orthogonal optimization of a water hydraulic pilot-operated pressure-reducing valve

1st International Global on Renewable Energy and Development

Mao, Xuyao^1 ; Wu, Chao^1 ; Li, Bin^1 ; Wu, Di^1

Wuhan Second Ship Design and Research Institute, Wuhan, China^1

关键词: Optimal combination;    Orthogonal experiment;    Orthogonal experimental design;    Orthogonal optimizations;    Pressure reducing valves;    Pressure stability;    Spring chambers;    Water hydraulics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/100/1/012134/pdf
DOI  :  10.1088/1755-1315/100/1/012134

来源: IOP

【 摘 要 】

In order to optimize the comprehensive characteristics of a water hydraulic pilot-operated pressure-reducing valve, numerical orthogonal experimental design was adopted. Six parameters of the valve, containing diameters of damping plugs, volume of spring chamber, half cone angle of main spool, half cone angle of pilot spool, mass of main spool and diameter of main spool, were selected as the orthogonal factors, and each factor has five different levels. An index of flowrate stability, pressure stability and pressure overstrike stability (iFPOS) was used to judge the merit of each orthogonal attempt. Embedded orthogonal process turned up and a final optimal combination of these parameters was obtained after totally 50 numerical orthogonal experiments. iFPOS could be low to a fairly low value which meant that the valve could have much better stabilities. During the optimization, it was also found the diameters of damping plugs and main spool played important roles in stability characteristics of the valve.