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Calculation method of load distribution of male mold system based on large wind power blades

A wind power generation blade and load distribution technology, which is applied in the direction of calculation, electrical digital data processing, special data processing applications, etc., can solve the problems of irregular load distribution of large wind power blade male mold system and irregular blade load distribution, etc. Achieve the effects of high precision, simple calculation, and guaranteed calculation accuracy

Inactive Publication Date: 2015-07-29
TONGJI UNIV
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Problems solved by technology

Due to the irregular shape of the blade model, it has been twisted and warped at the tail, resulting in irregular load distribution on the blade itself, and thus irregular load distribution on the male mold system of large-scale wind power blades

Method used

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  • Calculation method of load distribution of male mold system based on large wind power blades
  • Calculation method of load distribution of male mold system based on large wind power blades
  • Calculation method of load distribution of male mold system based on large wind power blades

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Embodiment 1

[0035] like Figure 1-Figure 5 As shown, the male mold system is composed of a glass shell substitute wood layer 1, a glass shell glass fiber reinforced plastic layer 2, a glass shell square steel layer 3, a cross-section wire-cut steel plate 4 and a conformal support steel frame 5 to form a cross-section wire-cut steel plate, wherein: The conformal support steel frame 5 is placed on the ground, and the steel plate 4 is cut along the specified distance welding section line on the conformal support steel frame 5, and then the glass shell square steel layer 3 and the glass shell glass fiber reinforced plastic layer 2 are sequentially laid on the cross section line cut steel plate 4 and glass shell substitute wood layer 1; Figure 12 As shown, the specific steps are as follows:

[0036] (1) Calculation of load distribution of supporting steel frame. Use APDL of ANSYS to establish a random finite element model, and after setting the gravity, the software itself calculates the lo...

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Abstract

The invention provides a load distribution calculation method of a male mould system based on a large wind power generation blade. On the basis that the male mould system is divided into three parts of a supporting steel frame, a section line cutting steel plate and a male mould surface glass bulb, the male mould surface glass bulb is divided into three layers of structures, namely, a glass bulb generation wood layer, a glass bulb glass steel layer and a glass bulb square steel layer. First, the supporting steel frame and the section line cutting steel plate are respectively conducted with load distribution solution seeking, and the three layers of structures of the male mould glass bulb are respectively conducted with load distribution calculation. Processing is conducted in the process of calculation through the methods that the male mould glass bulb is divided along the length direction of the blade in an equal interval mode, and then each small piece is conducted with discrete solution seeking and superposition calculation. The calculated discrete loads of the three layers of structures are conducted with superposition again. Curve fitting of discrete points is conducted through software matlab, and finally the load distribution function of the male mould system surface glass bulb and the distribution curve are obtained. The load distribution calculation method of the male mould system based on the large wind power generation blade has the advantages of being simple in calculation and high in precision.

Description

technical field [0001] The invention relates to a load distribution calculation method of a large-scale wind power generation blade male mold system. Background technique [0002] For the large-scale wind power blade male mold system, it is divided into two subsystems, the upper mold (PS) and the lower mold (SS). Due to the irregular shape of the blade model, it has been twisted and warped at the tail, resulting in irregular load distribution on the blade itself, and thus irregular load distribution on the male mold system of large-scale wind power blades. Contents of the invention [0003] The purpose of the present invention is to provide a method for calculating the load distribution of a large-scale wind power blade male mold system. This method is simple to calculate and has high precision. [0004] The load distribution calculation method of the male mold system of large-scale wind power generation blades proposed by the present invention, the male mold system is c...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 奚鹰綦鲁宁高立强王倩陈哲
Owner TONGJI UNIV
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