基本信息:
- 专利标题： 采用计算机程序确定模型水轮机转轮叶片初生空化的声学方法
- 专利标题（英）：Acoustic method for determining incipient cavitation of runner blades of model water turbine by adopting computer program
- 申请号：CN200910073354.8 申请日：2009-12-07
- 公开(公告)号：CN101813512A 公开(公告)日：2010-08-25
- 发明人： 赵越 , 张乐福 , 乔钢 , 黎辉 , 徐用良 , 刘智良 , 赵英男 , 张千里 , 赵景芬 , 吴可君 , 郭全宝 , 刘登峰 , 孙宗鑫
- 申请人： 哈尔滨电机厂有限责任公司
- 申请人地址： 黑龙江省哈尔滨市香坊区三大动力路99号哈尔滨电机厂有限责任公司
- 专利权人： 哈尔滨电机厂有限责任公司
- 当前专利权人： 哈尔滨电机厂有限责任公司
- 当前专利权人地址： 黑龙江省哈尔滨市香坊区三大动力路99号哈尔滨电机厂有限责任公司
- 主分类号： G01H17/00
- IPC分类号： G01H17/00
The invention relates to an acoustic method for determining the incipient cavitation of runner blades of a model water turbine by adopting a computer program, relating to the field of judgment of the incipient cavitation of the runner blades of the model water turbine. The invention accurately determines the incipient cavitation factor of a runner of the water turbine by analyzing the variation trend of high-low-frequency energy ratio along with the cavitation factor, determines the frequency value of the junction of low-frequency energy and high-frequency energy of an underwater sound power spectrum through curve-fitting after acquiring an acoustic wave signal of the runner of the water turbine and determines the variation trend of the high-low-frequency energy ratio along with the cavitation factor on the basis, and when the high-low-frequency energy ratio generates a local maximum, the incipient cavitation factor of the water turbine is determined therewith; and in addition, the invention completes the span of the incipient cavitation of the water turbine from manual discrimination to intelligent identification.
公开/授权文献:
- CN101813512B 采用计算机程序确定模型水轮机转轮叶片初生空化的声学方法 公开/授权日：2012-05-30
IPC结构图谱:
| G | 物理 |
| --G01 | 测量；测试 |
| ----G01H | 机械振动或超声波、声波或次声波的测量 |
| ------G01H17/00 | 不包含在本小类其他组中的机械振动或超声波、声波或次声波的测量 |