Multi-parameter optimization design method for box body reinforcing ribs in wind power gear box
A wind power gearbox and multi-parameter optimization technology, applied in the field of wind power, can solve the problems of high manufacturing cost of the middle box, large quality of the middle box, and high calculation cost, and achieve the effect of saving time and cost and reducing production cost.
Active Publication Date: 2021-08-10
HUNAN NANFANG AVIATION HIGH ACCURATE DRIVE
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Problems solved by technology
[0004] In the existing technology, when designing the middle box, a large number of samples are often required, which makes the calculation cost high. At the same time, the mass of the middle box is relatively large, resulting in a high manufacturing cost of the middle box. In order to solve the above problems, A multi-parameter optimization design method for box reinforcement ribs in wind power gearboxes is now provided
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[0033] Such as figure 1 As shown, a multi-parameter optimization design method for box reinforcement ribs in wind power gearboxes specifically includes the following steps:
[0034] Step 1: Taking the key dimension of the rib as the design variable, establish a three-dimensional model of the middle box and the connected upper and lower ring gears, and carry out assembly;
[0035] Step 2: Use orthogonal design and finite element simulation to obtain the maximum equivalent stress and mass of the middle box under 18 sets of samples;
[0036] Step 3: Then use the approximate function y(x) obtained by the response surface method to describe the relationship between the design variable x of the complex structure and the optimization target y;
[0037] Step 4: Perform a global search on the feasible region of the approximate function through the genetic algorithm to obtain the optimal design variable combination;
[0038] Step 5: Round the design variables (actual processing requir...
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The invention discloses a multi-parameter optimization design method for a box body reinforcing rib in a wind power gear box, and relates to the technical field of wind power; the key size of the reinforcing rib is used as a design variable, a three-dimensional model of a middle box body and an upper-stage gear ring and a lower-stage gear ring connected with the middle box body is established, and the three-dimensional model is assembled; the method also includes utilizing orthogonal design and finite element simulation to obtain the maximum equivalent stress and mass of the box body under the 18 groups of samples; describing a relationship between a design variable x and an optimization target y of the complex structure through an approximation function y (x) obtained by a response surface method; performing global search on the feasible region of the approximate function through a genetic algorithm to obtain an optimal design variable combination; rounding the design variables, and performing finite element verification; obtaining an optimal design variable quickly through a response surface method of a genetic algorithm; and rounding the optimal design variable, so that the design variable suitable for processing is obtained, finite element simulation verification is performed, and the time cost and the production cost are reduced.
Description
technical field [0001] The invention belongs to the technical field of wind power, and in particular relates to a multi-parameter optimal design method for box reinforcement ribs in a wind power gearbox. Background technique [0002] In wind turbines, since the speed of the wind rotor is very low, it is far below the speed required by the generator for power generation. It is necessary to increase the speed of the wind power gearbox to make the generator obtain the corresponding speed. The wind power gearbox is an important Core components play a vital role in wind power equipment. The wind power gearbox usually adopts the structure of one-stage planetary gear train plus two-stage parallel gear train or the structure of two-stage planetary gear plus one-stage parallel gear train. Wherein, a connection mechanism needs to be provided between each wheel train to transmit power between different stages of wheel trains. Moreover, due to the large transmission torque, complex wo...
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IPC IPC(8): G06F30/17G06F30/23G06F30/27G06N3/12G06F111/04G06F111/10G06F113/06
CPCG06F30/17G06F30/23G06F30/27G06N3/126G06F2111/04G06F2111/10G06F2113/06
Inventor 蔡安文王会斌胡云波朱美玲
Owner HUNAN NANFANG AVIATION HIGH ACCURATE DRIVE