TY - JOUR A2 - Moreira, Rui AU - Agnalt, Einar AU - Østby, Petter AU - Solemslie, Bjørn W. AU - Dahlhaug，作者简介:olole G. PY - 2018 DA - 2018/12/23 TI - Experimental Study of a Low-Specific Speed Francis Model Runner during Resonance SP - 5796875 VL - 2018 AB - An analysis of a Low-Specific Speed Francis Model Runner in a Runner channel during Resonance其中包括实验和压力模型的发展，以估计对流和声压场的测量。通过安装在转轮轮毂上的四个压力传感器沿一个转轮通道测量压力。转轮的机械激励对应于动静干涉的强迫激励。利用转速控制励磁频率。测量发现，导叶通过频率的二次谐波在压力场中激发了一个清晰的共振峰。根据所建立的压力模型，估计了其固有频率和阻尼。对流压力场从流道入口到流道出口几乎呈线性减小，而声压场的振幅在流道中部最高。共振时，声压明显优于对流压。 As the turbine geometry is available to the public, it provides an opportunity for the researchers to verify their codes at resonance conditions. SN - 1070-9622 UR - https://doi.org/10.1155/2018/5796875 DO - 10.1155/2018/5796875 JF - Shock and Vibration PB - Hindawi KW - ER -