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A method and device for estimating fatigue life of industrial pure aluminum wire

An industrial pure aluminum, fatigue life technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as difficult to predict the fatigue life of aluminum wires, difficult to judge the difference in fatigue life of aluminum wires, and difficult to analyze the failure of aluminum stranded wires. To achieve the effect of simple operation and promotion

Active Publication Date: 2022-08-02
ZHEJIANG HUADIAN EQUIP TESTING INST +1
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AI Technical Summary

Problems solved by technology

Usually, the aluminum stranded wire for overhead power transmission is made of 30-40 strands of aluminum monofilament. After the aluminum stranded wire fatigues and breaks, it is difficult to predict the fatigue life of the aluminum wire, and it is difficult to judge the fatigue life difference of each single-strand aluminum wire. Failure Analysis of Stranded Wires Brings Difficulties

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  • A method and device for estimating fatigue life of industrial pure aluminum wire
  • A method and device for estimating fatigue life of industrial pure aluminum wire
  • A method and device for estimating fatigue life of industrial pure aluminum wire

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Embodiment Construction

[0049]The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] The invention provides a method for estimating the fatigue life of industrial pure aluminum wire, such as figure 1 shown, including the following steps:

[0051] S101. Take a fatigue fracture sample from the industrial pure aluminum wire to be tested;

[0052] S102, obtaining the first cross-sectional area of ​​the industrial pure aluminum wire to be tested;

[0053] S103, determine the first crack propagation zone of the fati...

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Abstract

The present application discloses a method and device for estimating the fatigue life of an industrial pure aluminum wire. The method includes: intercepting a fatigue fracture sample from an industrial pure aluminum wire to be tested; obtaining a first cross-sectional area of ​​the industrial pure aluminum wire to be tested ; Determine the first crack growth zone of the fatigue fracture of the industrial pure aluminum wire to be tested, and count the area of ​​the first crack growth zone; according to the ratio of the first crack growth zone area to the first cross-sectional area, and the pre-acquired crack growth zone area The functional relationship between the cross-sectional area ratio and the fatigue life is used to estimate the fatigue life of the industrial pure aluminum wire to be tested. Through this method, the fatigue life of industrial pure aluminum wires can be quickly estimated, and the fatigue performance of different industrial pure aluminum wires can be judged.

Description

technical field [0001] The invention relates to the field of industrial pure aluminum wires for overhead power transmission, in particular to a method and a device for estimating the fatigue life of industrial pure aluminum wires. Background technique [0002] Overhead conductors are the necessary carriers for power transmission from the generator end to the receiver end in long-distance transmission lines, and are also the most important component of long-distance transmission lines. Aluminum is an important conductor material in the field of long-distance power transmission. [0003] Because overhead transmission wires are exposed to the natural environment for a long time, they will inevitably be affected by wind, rain and snow, which will greatly reduce their actual life. Among them, the wind-induced vibration has a great influence on the overhead transmission wires, which will lead to the wear between the wires inside the stranded wire and between the wires and the fix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
CPCG01N17/006
Inventor 陈庆吟侯嘉鹏马恒王强倪国灿张哲峰谈佳栋
Owner ZHEJIANG HUADIAN EQUIP TESTING INST
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