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A type selection method for elastic support of wind power gearbox

A wind power gearbox and elastic support technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of inability to analyze, calculate and evaluate vibration and noise reduction effects, achieve good results and strong operability , The effect of simple principle

Active Publication Date: 2018-04-13
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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Problems solved by technology

In the wind power industry, only the gearbox type test can measure and evaluate its vibration at present, and its vibration and noise reduction effects cannot be analyzed, calculated and evaluated at the design stage

Method used

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  • A type selection method for elastic support of wind power gearbox
  • A type selection method for elastic support of wind power gearbox
  • A type selection method for elastic support of wind power gearbox

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Embodiment Construction

[0036] The present invention will be further described in detail below with reference to the drawings and specific embodiments of the specification.

[0037] The key parameter of elastic support selection is stiffness. The selection of the elastic support mainly considers the following points: 1. The stiffness and damping coefficient of the elastic support. The stiffness is mainly used to check its bearing and deformation characteristics. This is the main basis for the selection of the current wind power industry; 2. The mechanical interface is used to design the external dimensions of the elastic support; 3. The influence of the elastic support on the dynamic characteristics of the transmission chain of the complete wind power generation machine; 4. The vibration reduction effect of the elastic support. The method for selecting the elastic support of the wind power gearbox of the present invention mainly focuses on the third and fourth points mentioned above, considering the mat...

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Abstract

The invention discloses a type selection method for the elastic support of a wind power gearbox, the steps of which are: S1: according to the load characteristics of the fan, calculate the minimum stiffness K1 of the elastic support that meets the requirements of deformation, load bearing and fatigue life; S2: establish the fan Simplified model of drive chain dynamics analysis; S3: Solve the natural frequency of the fan drive chain, and obtain the minimum stiffness K2 of the elastic support that makes the natural frequency of the fan drive chain avoid 6 times the rotation frequency of the blade; S4: Perform the vibration reduction effect of the elastic support Through simulation calculation, find the minimum elastic support stiffness K3 that meets the requirements of gearbox vibration and noise reduction; S5: Select the gearbox elastic support stiffness parameters and determine the elastic support model. The invention has the advantages of simple principle, strong operability, good effect and the like.

Description

Technical field [0001] The invention mainly relates to the field of wind power equipment, and particularly refers to a selection method suitable for elastic support in a wind power gear box. Background technique [0002] In wind power equipment, the gearbox elastic support is used to support the gearbox that generates the vibration source so that the vibration is not transmitted to the base. The elastic support of the gearbox plays a role in reducing vibration and noise in the wind turbine. In addition, the elastic support also has the function of supporting the weight of the gearbox while maintaining the relative position of the gearbox under external forces. Therefore, the design of elastic support must consider its stiffness, damping coefficient, natural frequency and other factors. [0003] At present, the selection of elastic supports in the wind power industry mainly includes the following tasks: 1. Meeting the mechanical interface requirements of elastic supports and the as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 赵萍杨军李晓光梁裕国谭湘王永胜杨柳宋力兵刘超盛科杨佳元王磊
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST