桨距角 meaning in Chinese
propeller pitch angle
Examples
- He finds the pitch range after calculated the three important parameters through the bladed for windows software , then presents an optimized control strategy that regulate the pitch angle in terms of the wind speed . it must control the output power because the variational output power brings the variational loads . he confirms and optimizes the control strategy that the output power is the control target , the output power is divided into three parts
将功率作为系统控制的目标，将功率分成三段进行控制，在低风速区，载荷是有限的，以功率最大化作为控制目标；在额定风速附近，由于处在升力曲线斜率的变化点，功率变化较大，应尽快调整桨距角进入失速区工作，减少载荷的波动，该额定风速区的上下工作点要通过现场试验的手段来确定；在额定风速以上，使功率维持在额定输出，减少功率波动，并通过bladed软件的仿真计算对控制策略进行了验证。 - Finally , the experiments on the rotor bvi noise are conducted both in an aeroacoustic laboratory and at outdoors , and the noise characteristics at different locations are measured on different blade - tip mach numbers , collective pitch angles and rotor configurations . based on the experimental results , some new conclusions are presented
本文第七章分别在“消声室”和外场进行了模型旋翼的桨-涡干扰噪声实验，对不同马赫数、不同桨距角以及不同旋翼布置情况下的不同测点进行了噪声测量，得出了一些新的结论。