使用BP算法研究桨叶安装角对直升机涡环状态的影响

Investigation of Blade-pitch Effect on Helicopter Vortex-ring State Using BP Method

利用旋翼涡环状态试验数据 ,使用神经网络误差反向传播算法 ,推导出桨叶安装角对直升机涡环影响的数学模型。使用该模型可准确预测桨叶安装角对直升机涡环状态的影响 ,从而节约试验费用。

According to the test data of rotor vortex-ring, the mathmatical model of blade-pitch effect on vortex-ring is defined using the back-propagation(BP) nerual network, which can predict the effect correctly, and the test cost is saved.