摘要
介绍采用多点静压落差法测量风洞试验段的风速,并对其特点进行说明;针对低速直流式风洞稳风速控制困难,易受外部环境影响的问题,提出了一种多层前向神经元网络PSDNN。PSDNN神经网络的风洞稳风速控制系统不仅保留了原来的控制系统,同时还提高了稳风速控制的精度,为得到更好的试验数据提供保障。
This paper introduced multi -point static pressure method to measure wind velocity of wind tunnel, and described the characters. Due to the difficulties of wind speed control for low speed lineal wind tunnel low and influence of external environment, a muhilayer previous neural net- work PSDNN was presented. The system was not only remain conventional control system, but also had higher precision, then this method ensured getting better test data.
出处
《直升机技术》
2015年第4期16-19,共4页
Helicopter Technique
