Method for calculating strength of main shaft of wind turbine generator set
A technology for wind turbines and strength calculation, applied in the fields of calculation, electrical digital data processing, special data processing applications, etc., can solve problems such as increased structure size, performance impact with transmission, unsafe, etc., to save costs and time. , the effect of accurate calculation
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[0019] like figure 1 As shown, the method for calculating the main shaft strength of the wind power generating set according to the present invention, its steps mainly include:
[0020] (1) Using the existing finite element software as a platform to implement modeling, firstly, the main shaft 3, bearing 4 and locking disc 5 are combined into one structure with solid element simulation settings, and the solids can be combined by node merging. The bearing 4 and the locking disc 5 are solidly modeled, which can effectively reduce the stress concentration problem at the contact position; the wind wheel part is simulated to set a wind wheel node 1 and its position is the center point of the wind wheel;
[0021] (2) Secondly, four gear box elastic supports are arranged outside the locking disc 5, and the elastic support of each gear box is simulated by the spring unit group 7, and the flange bolt holes of the wind wheel node 1 and the main shaft 3 are connected by the rigid beam uni...
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