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在消除汽轮发电机组振动方面,多年来,国内外进行了许多工作,积累了丰富的经验目前认为寻找机组振动原因,主要是依靠经验,忽略对于机组振动诊断方面的研究,因此对寻找比较复杂振动的原因,常常要几经反复。1963年热工所曾提出如何寻找汽轮发电机组振动原因,主要是针对当时存在的普通强迫振动(振动频率和转子转速符合)和轴瓦自激振动。实际上目前运行的汽轮发电机组所发生的振动已远远超出这个范围,有关这方面的资料尚不多见。本文根据实践和认识,对目前国、外运行的汽轮发电机组所发生的七类强迫振动和四类
In terms of eliminating the vibration of steam turbine generator set, many work both at home and abroad has been carried out for many years, and accumulated rich experience. At present, it is mainly because of the experience that ignoring the research on unit vibration diagnosis, The reasons for vibration, often after repeated. In 1963, the Institute of Thermal Engineering proposed how to find out the causes of the vibration of steam turbine generators, mainly for the common forced vibration (vibration frequency and rotor speed coincided) and self-excited vibration of bearing bush. In fact, the vibration of the turbo-generator units currently in operation has far exceeded this range. Information on this is not yet available. Based on the practice and understanding, this paper analyzes the seven types of forced vibration and the four types of forced vibration