首页|基于高阶超声非线性系数的齿轮疲劳累计损伤检测与评估

基于高阶超声非线性系数的齿轮疲劳累计损伤检测与评估

Gear Fatigue Cumulative Damage Detection and Evaluation Based on High-order Ultrasonic Nonlinear Coefficients

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齿轮的疲劳累计损伤是一种检测难度较大的损伤类型.采用非线性超声技术的高阶超声非线性系数对齿轮的疲劳累计损伤进行评估.以服役3年的齿轮为研究对象,对齿根32个和齿尖端16个检测点进行非线性超声实验.实验结果表明,14号齿和15号齿根部检测点的相对非线性系数最大,说明其疲劳损伤程度最严重.而对于同一个齿,齿根部的疲劳损伤要比齿尖严重.因此,根据检测点计算得的高阶相对非线性系数可用于齿轮疲劳累计损伤评估,为服役齿轮的疲劳损伤提供一种实用的检测方法.
Fatigue cumulative damage of gear is a kind of damage type which is difficult to detect.The high order rela-tive nonlinear coefficient of nonlinear ultrasonic technology is used to evaluate the cumulative fatigue damage of gear.The nonlinear ultrasonic experiments are carried on 32 detection points at tooth roots and 16 detection points at tooth tips of a gear that has been in service for 3 years.The experimental results show that the second order and third order relative non-linear coefficient of detection points of tooth root at No14 and No15 are the largest,indicating that the fatigue damage de-gree is the most serious.For the same tooth,the fatigue damage of the root is more serious than that of the tip.Therefore,the higher order relative nonlinear coefficient calculated from the detection points can be used to evaluate the cumulative fatigue damage of gear,which provides a practical detection method for fatigue damage of gear in service.

gearhigh-order ultrasonic nonlinear coefficientfatigue cumulative damagedamage detection

全四龙、张玉华

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东华理工大学江西省新能源工艺及装备工程技术研究中心,南昌 330013

东华理工大学机械与电子工程学院,南昌 330013

齿轮 高阶超声非线性系数 疲劳累计损伤 损伤检测

江西省重点研发计划东华理工大学江西省新能源工艺及装备工程技术研究中心开放基金东华理工大学江西省新能源工艺及装备工程技术研究中心开放基金东华理工大学试验技术开发项目东华理工大学试验技术开发项目

20212BBE53033JX-NE2021-03JXNE2022-05DHSY-202253DHSY-202310

2024

10.3963/j.issn.1671-4431.2024.04.021

武汉理工大学学报
武汉理工大学

武汉理工大学学报

影响因子：0.649
ISSN：1671-4431
年,卷(期)：2024.46(4)
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