CAJ | 학술논문

针对汽车变速器下线产品质量检测过程中人工检测存在的客观性差异,以及对故障定位不准确的问题,设计并开发了一种基于阶次分析理论的变速器在线质量检测系统。该系统运用阶次分析理论对振动信号进行有效的特征提取,并运用遗传搜索策略对高维特征向量进行特征选择,以提高故障判别的效率和准确率。为解决系统的通用性问题,还提出了一种通用的变速器结构建模方法。在某变速器生产企业的实际应用,验证了提出的检测方法的有效性和准确性,证明了该方法可实时按工况对变速器产品进行质量检测。对于有质量缺陷的产品,该方法可指出其故障类型和故障位置。
침대기차변속기하선산품질량검측과정중인공검측존재적객관성차이,이급대고장정위불준학적문제,설계병개발료일충기우계차분석이론적변속기재선질량검측계통。해계통운용계차분석이론대진동신호진행유효적특정제취,병운용유전수색책략대고유특정향량진행특정선택,이제고고장판별적효솔화준학솔。위해결계통적통용성문제,환제출료일충통용적변속기결구건모방법。재모변속기생산기업적실제응용,험증료제출적검측방법적유효성화준학성,증명료해방법가실시안공황대변속기산품진행질량검측。대우유질량결함적산품,해방법가지출기고장류형화고장위치。
During the process of new transmission product quality inspection, location of the faults of transmission is hard and subjective by manual detection. To solve these problems, an online fault diagnosis system was designed and developed, which was based on the theory of order analysis. A general modeling method was proposed and fault features were extracted based on the theory of order analysis. High--dimensional feature vector was compressed by using GA algorithm in order to classify the faults effectively. A general modeling method was proposed in order to improve versatility of the system. The validity and the accuracy of the algorithm proposed herein were proved by applications in a transmission enterprise. The system can diagnose transmission＇s faults by operating mode and locate the fault position if the transmission has quality defects.