西安交通大学机械工程学院,西安,710049
网络首发:2013-09-10,
纸质出版:2013
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高瑞鹏, 尚春阳, 江航. 遗传算法结合小波神经网络的列车车轮扁疤故障检测方法[J]. 西安交通大学学报, 2013,47(9):88-91+111.
A Fault Detection Strategy for Wheel Flat Scars with Wavelet Neural Network and Genetic Algorithm[J]. 2013, 47(9): 88-91+111.
高瑞鹏, 尚春阳, 江航. 遗传算法结合小波神经网络的列车车轮扁疤故障检测方法[J]. 西安交通大学学报, 2013,47(9):88-91+111. DOI: 10.7652/xjtuxb201309015.
A Fault Detection Strategy for Wheel Flat Scars with Wavelet Neural Network and Genetic Algorithm[J]. 2013, 47(9): 88-91+111. DOI: 10.7652/xjtuxb201309015.
为了寻求一种更加有效的列车车轮扁疤故障分析算法
提出一种通过轮轨噪声来确定车轮扁疤严重程度的检测方法。该方法将遗传算法与小波神经网络相结合
同时为了避免出现局部极小值
加速学习速度
在小波神经网络中增加了动量模型; 在搜寻小波神经网络隐含层链接权值之前
使用遗传算法进行计算以优化小波神经网络结构; 硬件只需2组麦克风阵列以及2个速度感应器就可以提供实时结果
成本远低于我国现有的检测方法。对不同列车车速下的轮轨信号进行了实时测试
结果表明: 与传统神经网络、小波神经网络和遗传算法相比
该方法的检测准确率最多分别提高了16%、11%和3%
并且收敛最快。
A novel strategy is proposed to provide a more effective wheel flat scar fault detection algorithm by means of wheel/rail noise. In this strategy
genetic algorithm is combined with a wavelet neural network
and a momentum model is added into the genetic wavelet neural network to avoid the local minimum and to accelerate the learning speed. Before searching the hidden-layer weights of the network
the structure of the network is optimized by genetic algorithm. This strategy requires only two groups of microphone arrays and two speed sensors for real-time measurements. Consequently
the cost is much lower than that of the existing detection methods in China. The proposed strategy has been applied to the real-time detection of train wheel/rail signals at different speeds. Numerical results reveal that the proposed strategy is of the fastest convergence
and its detection accuracy increases at most by 16%
10%
and 3%
respectively
compared with the conventional neural network
wavelet neural network
and genetic algorithm.
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