【摘要】 本文通过对大量试验资料的分析讨论，探讨了空化系数、水头等对水轮机涡带压力脉动的影响，介绍了小空化系数条件下的“削波”现象，探讨了“削波”现象对压力脉动幅频特性分析的影响，并就模型试验中采集时间的选取、脉动波形的分析方法等进行了探讨。更多还原

【Abstract】 The influence of cavitation coefficient and head on vortex pressure fluctuation of hydraulic turbines is researched through the analysis about a lot of test data. The “cut wave” phenomenon at small cavitation coefficient condition and its influence on the frequency analysis of the vortex pressure fluctuation are indroduced. The selection of sampling time of the model test and the analysis method of the fluctuation are discussed.更多还原