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Composite material electric pole and structure design method thereof

A composite material and design method technology, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., can solve problems such as structural design of composite material poles that are not seen, and reduce corridor width, reduce The effect of labor intensity and safety margin improvement

Active Publication Date: 2011-01-05
北玻电力复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there have been no relevant reports on the structural design of composite poles

Method used

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  • Composite material electric pole and structure design method thereof
  • Composite material electric pole and structure design method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0044] The design method of the present invention includes the steps of designing the wall thickness of the pole on the basis of the traditional pole structure and the step of coating the outer wall of the pole with an anti-aging function surface layer, and the specific steps are as follows:

[0045] 1) The wall thickness of the composite pole is designed to be three layers, which are inner skin, sandwich layer and outer skin from the inside to the outside; wherein, the inner skin and the outer skin are both composed of glass fiber reinforced thermosetting resin winding layers ;

[0046] 2) Determine the raw materials and proportions used in the glass fiber reinforced thermosetting resin composite system in step 1); determine the material and molding method of the sandwich layer; wherein, the glass fiber reinforced thermosetting resin composite system is made of several layers of glass fiber The vinyl resin glue cured at normal temperature is impregnated and then wound accordi...

example 2

[0059] Design method of the present invention is basically identical with example 1, and its difference is:

[0060] Step 2) Among the raw materials and proportions used in the glass fiber reinforced thermosetting resin composite system, the glass fiber is 37 layers; the vinyl ester resin glue used is composed of 90 parts of vinyl ester resin, 1 part of curing agent, and 1 part of accelerator. 0.2 parts, 1 part anti-aging agent, 0.2 parts color paste;

[0061] Step 4) Determine the thickness of the inner skin, outer skin and sandwich layer, confirm that the inner skin thickness is designed to be 3mm according to the design ratio of inner skin thickness and outer skin thickness 2: 3, and the outer skin thickness design is 4.5mm;

[0062]Step 6) get the ratio of the allowable stress value 547MPa of the composite material electric pole design and the stress value 365MPa calculated through step 5) finite element software ANSYS program to obtain the safety factor value 1.49 of the ...

example 3

[0071] Design method of the present invention is basically identical with example 1, and its difference is:

[0072] Step 2) Among the raw materials and proportions used in the glass fiber reinforced thermosetting resin composite system, there are 37 layers of glass fiber, including 13 layers of inner cover sheet and 24 layers of outer skin; the vinyl ester resin glue used is composed of vinyl 95 parts of ester resin, 2 parts of curing agent, 1 part of accelerator, 2 parts of anti-aging agent, 0.6 parts of color paste;

[0073] Step 4) Determine the thickness of the inner skin, outer skin and sandwich layer, confirm that the inner skin thickness is designed to be 4mm according to the design ratio of inner skin thickness and outer skin thickness 1:2, and the outer skin thickness design is 8mm;

[0074] Step 5) In the finite element software ANSYS, apply the ANSYS program to build a solid model, apply a load on the solid model, and obtain the stress value 217MPa and the deflecti...

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Abstract

The invention discloses a composite material electric pole and a structure design method thereof. The method comprises the following steps of: (1) designing the wall thickness of the electric pole, wherein the wall of the electric pole sequentially comprises an inner skin, a sandwich layer and an outer skin; (2) determining used raw materials, a proportion and a molding mode; (3) manufacturing a sample according to the requirement of electric power circuit engineering and finishing testing to acquire the elastic modulus and the Poisson's ratio performance parameters of the inner skin, the outer skin and the sandwich layer; determining the thicknesses and the laying modes of the inner skin, the outer skin and the sandwich layer; (4) constructing a solid model by utilizing finite element software ANSYS and applying a load; carrying out analog computation to acquire stress and deflection values of different working conditions and comparing with a design requirement; if the stress and the deflection values meet the design requirement, finishing designing; and if the stress and the deflection values do not meet the design requirement, returning to the step (3), repeating the steps (3) and (4) until the design requirement is met to finish designing. The electric pole is designed by utilizing the ANSYS software, the requirement on the safety coefficient of the structure is met, and meanwhile, the whole bending resistance of the electric pole is improved, which provides a beneficial reference for the application of the composite material in the power industry.

Description

technical field [0001] The invention relates to a composite material electric pole and a design method for the electric pole structure, belonging to the field of electric facility components and the design thereof. Background technique [0002] In the field of power facilities, traditional transmission poles, such as wooden poles, cement poles, steel poles and iron towers, generally have defects such as heavy weight, perishability, corrosion or cracking during long-term operation, poor durability, and short service life. It is difficult to operate and maintain, and it is prone to various safety hazards. [0003] Since the fiber reinforced resin matrix composite material (hereinafter referred to as FRP) has the characteristics of high strength, light weight, corrosion resistance and fatigue resistance, durability and electrical insulation performance, and performance can be designed, it is an ideal choice for the structural material of the transmission pole. At present, the ...

Claims

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Application Information

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IPC IPC(8): E04H12/02C04B26/10B32B17/02B32B27/04B32B27/18
Inventor 李济民任宗栋刘泉曹小平赵爱军彭玉刚陈澍贾伟
Owner 北玻电力复合材料有限公司
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