噪声与振动控制2019，Vol.39Issue(5)：62-67,6.DOI:10.3969/j.issn.1006-1355.2019.05.012
离心风机气动性能时域与频域参数优化
Time Domain and Frequency Domain Parameter Optimization of Aerodynamic Performance of Centrifugal Fans
王洪波 1马志远1
作者信息
- 1. 湖南大学 汽车车身先进设计制造国家重点实验室,长沙 410082
- 折叠
摘要
Abstract
It can be seen from the coherence analysis that there is a strong coherence between the inlet static pressure and the internal static pressure of the centrifugal fan. In this paper, the static pressure in the time domain and the peak value of blade passing frequency of the inlet static pressure pulsation in the frequency domain of the aerodynamic performance of the centrifugal fan are selected as the optimization targets, the length and angle of the volute outlet structure are optimized. Twenty groups of sample points are selected by Latin Hypercube to establish the Kriging approximate model. The combination optimization method of Non-dominated Sorting Genetic Algorithm and Sequential Quadratic Programming-DONLP is used to optimize the Kriging model. The results show that the static pressure of the fan are greatly improved. The peak value of blade passing frequency of the inlet static pressure pulsation is reduced by 4.23 %. The internal static pressure pulsation of the centrifugal fan is effectively reduced, the transmission of pressure pulsation of the suction side of the blade near the exit of the volute to other areas is weakened and the asymmetry of the flow field is improved. The comprehensive performance of the centrifugal fan has been significantly improved.关键词
振动与波/离心风机蜗壳出口/相干分析/静压/叶频峰值/组合优化算法Key words
vibration and wave/centrifugal fan volute outlet/coherence analysis/static pressure: peak value of blade passing frequency/combined optimization algorithm分类
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王洪波,马志远..离心风机气动性能时域与频域参数优化[J].噪声与振动控制,2019,39(5):62-67,6.
