APPLICATION OF LYAPUNOV EXPONENT SPECTRUM IN PRESSURE FLUCTUATION OF DRAFT TUBE |
| |
Authors: | WANG Li-ying ZHAO Wei-guo WEI De-hua |
| |
Affiliation: | College of Water Conservancy and Hydroelectric Power, Hebei University of Engineering, Handan 056021, China |
| |
Abstract: | The Lyapunov exponent spectrum is firstly applied in the analysis of pressure fluctuation of draft tube and calculated based on the time series of vibration in experiments for different situations. Results shows that the Lyapunov exponent spectrum varies with the setting of guide vane, So the Lyapunov exponent spectrum can be used to judge the pressure fluctuation of draft tube so as to timely adjust the setting of the guide vanes to reduce the damage caused by the vibration. |
| |
Keywords: | Lyapunov exponent spectrum pressure fluctuation setting of guide vanes |
本文献已被 维普 万方数据 ScienceDirect 等数据库收录! |