摘要
In order to simulate the response of shafting with hysteresis nonlinear elementsa new improved BP algorithm is proposed. In the new method, the iteration steps,which are previously determined by experience, are here optimized, to prevent errorfunction from falling into a local minimum. At the same time, a new excitationfunction is adopted, so that the learning process of BP network will not oscillateand diverge under large iteration steps. The above two improvements increase theconvergent speed and stability of BP network. An illustrative example is given toshow the effectiveness of the new method.
In order to simulate the response of shafting with hysteresis nonlinear elementsa new improved BP algorithm is proposed. In the new method, the iteration steps,which are previously determined by experience, are here optimized, to prevent errorfunction from falling into a local minimum. At the same time, a new excitationfunction is adopted, so that the learning process of BP network will not oscillateand diverge under large iteration steps. The above two improvements increase theconvergent speed and stability of BP network. An illustrative example is given toshow the effectiveness of the new method.
出处
《数值计算与计算机应用》
CSCD
北大核心
2000年第2期121-126,共6页
Journal on Numerical Methods and Computer Applications
