| The construction project of a hydropower station is taken as the background in this dissertation, and it's second class electricity station is scientifically planned and designed according to those factors, such as the practical needs and the future development of the user, the geotechnical conditions and project scale of the station et al. The whole lay and design methods of the building are given, in which machines and metal structures are determined, and economical value of the station are given. Rotor balancing of hydraulic power sets is studied by the nonlinear rotor-dynamics theory, the lots of factors are analyzed, and the geometry and mechanics models are created. The methods and results of the numerical simulation are proposed. The solver of the dynamics and dynamic balance are compiled, and the corresponding calculation work are completed based on the system simulation platform. The major works in the dissertation are as the following:Firstly, according to the power load forecasting results of the user and some influencing factors, the comprehensive planning and design of the second class electricity station are proposed. A second class electricity station with two generators of 500KW, up to 1000KW totally, is planed to build. With the former 575 KW, it reaches 1575 KW. According to the big slope of the river basin and the small winter runoff, we decided to build a dam and dig a new channel to get in the water. The engineering is made up with head hinge, diversion canal, fore bay, steel penstock, lord factory building, and the tail channel. According to the planning system capacity, the growth velocity of the charge, the power net structure and the kinetic energy of water, With the construction of this second class electricity, it can not only satisfy the electrical power need of the user, and it will also obtain a good economic benefit.Secondly, to effectively solve the balance problems in the actual running process, the mathematical model and geometry model of turbine rotor system are established and the rotor system are numerical simulated. Through the analysis of the supporting type and details structure, the 2D structural map is completed, the size and type of structural are determined, which lay the solid foundation for the creating the 3D model of the rotor system. The type of the second class electricity station is Kaplan hydro-generating unit, of which is vertical umbrella layout structure. The 3D drawing of the rotor system and its corresponding supporting are completed by UG.Finally, through the analysis of various factors affecting the dynamic model of hydro-generating, spindle system is simplified, the reasonable simulation platform of turbine rotor dynamic balance system is constructed, in which nonlinear oil film is incentive. Based on the simulation platform, the dynamic characteristics of the support and water cone are analyzed.The main problems on station construction in the region are the reasonable layout and the power balanced allocating between the power stations. The small hydropower is more suitable for the region due to its special geographical environment. Aiming at the second class electricity station, the overall planning and design of similar hydropower is made, which is of the certain reference significance for the similar power station construction.Through research of the turbine generator rotor system, the planning and maintenance methods are presented.The problem which the second class electricity station as the power source of the user is solved, promoting the economic development of the region, and accelerating the southwest China, northwest and adjacent areas of economic development. On the other hand, because of hydro-generator units, steam turbo set, aviation engine etc. Large or high-speed rotating mechanical behavior of the rotor system essentially strong homogeneity, this article studies on the above-mentioned high-speed rotor system with many of the significance of research.
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