High-frequency Vibration Of The Hydropower Plant And The Column Cracks

In this thesis is the calculation example with the Hongshi hydropower station factory building, and use structural analysis software Ansys establish the factory building overall structure finite element mode , and is living that the line structure analysis is make progress in this base.The main works in this paper are as follows:1. Dynamic and static analysis of whole structure of Hongshi plant is made. Result indicate , The computational solution makes known , and temperature stress and stirs stress does not overtake the intensity design rating , and is not that the factory building vertical column in Hongshi hydropower station into being the fundamental reason of crack.2. The vibration of unit Hongshi hydropower station causes violent vibration of the plant and the dam, which has not been occurred interiorly before. And such serious vibration has not been found according to foreign literature. In this paper, referring to the achievement of in - situ test, and on the basis of selecting model of Hongshi hydropower station, dynamic and static analysis of whole structure of Hongshi plant is made. We have gained a clear idea of the main reasons of the violent vibration. A reasonable to solve the problem stated above is dvanced.3. Dynamic and static analysis of whole structure of Hongshi plant is made is elevation 277. 5m part what the fatigued property. Columniation of Hongshi hydropower station has fatigue Moreover in through the beton split what unfolds the mechanism to characteristic, the contributing factor in split do the inquirement further .The computation and the theoretical analysis in this paper are both integrated with actual project which is running or being built, which has good practical applying value and good value to constructing and running other hydropower station.