摘要
在Thoma1910年计算调压井水位波动数学方程的基础上，进一步计算出表征引水系统几何参数的一个固有特征值———自然流量Qn。再深入分析证明，当水轮机的运行流量Q0<(0.15～0.25)Qn时，这种运行可能会出现振动，表征出了水轮机稳定运行对引水系统几何参数的要求条件，该结论与Thoma的调压井水位波动稳定条件具有同等的工程参考价值及可信程度，因为它们都来自于同一的Thoma模型。
Based on Thoma's equation used to analyze the water level fluctuation of surge tank in 1910 fur-ther to have calculated theharacteristic value—natural flow Qn of lead water system indicating geometric parame-ters,and certificated that the hydraulic turbine may be arisen oscillation when its operating flow Q0<(0.15～0.25)Qn,there is a stable operatin reqirement of hydraulic turbine with regard to geometrie parame-ters of lead water system. The both of this and thoma's requirements have a equal reference value and trust worthness, because they are all stem from the same Thoma's equation
出处
《大电机技术》
北大核心
2001年第2期52-55,共4页
Large Electric Machine and Hydraulic Turbine
