首页|期刊导航|水利学报|水力机械运行中的拍振和共振问题探讨

水力机械运行中的拍振和共振问题探讨OA北大核心CSCDCSTPCD

Study on the issues of beat vibration and resonance in hydraulic machinery

中文摘要英文摘要

拍振和共振是常见的自然现象,对水力机械稳定运行危害很大,但在对其研究中存在将二者混淆和对部分虚假拍振信号辨识不清等问题,需深入探讨.本文首先介绍了拍振波的基本原理,通过对几种特殊情况的分析说明了拍振波的拍振频率和幅值范围,并在分析拍振波本质特征、共振基本特征、扰动频率和固有频率差别的基础上进一步论述了拍振和共振的区别,提出了扰动频率和系统固有频率接近不会产生拍振、两个不同的扰动波即使频率相同也不可能产生共振等新见解;其次,本文还分析了采集信号不健…查看全部>>

Beat vibration and resonance are common natural phenomena and they have great danger to the stable operation of turbine.But there is confusion about differences between beat vibration and resonance,and some false signals of beat vibration could not be recognized.It is necessary to study these issues and provide foundation for solving the unstable problems of turbine.The basic principle of beat vibration wave is introduced,and the frequency and amplitude of b…查看全部>>

徐洪泉;廖翠林;王万鹏;李铁友

中国水利水电科学研究院,北京100038中国水利水电科学研究院,北京100038中国水利水电科学研究院,北京100038中国水利水电科学研究院,北京100038

建筑与水利

水力机械压力脉动拍振共振拍频扰动频率固有频率

hydraulic machinerypressure fluctuationbeat vibrationresonancebeat frequencydisturbing frequencynatural frequency

《水利学报》 2017 (9)

1118-1125,8

中国水利水电科学研究院科研专项(HM0145B45B432016)

10.13243/j.cnki.slxb.20170178