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1.滨州市科技创新发展研究院,滨州 256600
2.绍兴文理学院 纺织科学与工程学院,绍兴 312000
3.绍兴文理学院 国家碳纤维工程技术研究中心浙江分中心,绍兴 312000
陈栋,男,1981年生,山东滨州人,学士,副研究员;主要研究方向为机械状态监测与智能维护;cd5311@126.com。
张安社(通信作者),男,1992年生,山东东明人,硕士,助理研究员;主要研究方向为机械状态监测与智能维护;zhangan_she@163.com。
收稿:2025-10-11,
修回:2026-01-05,
网络首发:2026-05-11,
移动端阅览
陈栋,张安社,杜诚杰.一种优选特征融合的滚动轴承性能退化评估方法[J].机械传动,XXXX,XX(XX):1-8.
CHEN Dong,ZHANG Anshe,DU Chengjie.An optimized feature fusion method for performance degradation assessment of rolling bearings[J].Journal of Mechanical Transmission,XXXX,XX(XX):1-8.
目的
2
针对滚动轴承等旋转机械零部件在性能退化评估(Performance Degradation Assessment
PDA)中存在退化关键信息难以全面捕获的问题,提出一种基于常春藤算法(Ivy Algorithm
IVY)的自适应优选特征融合方法,以构建能够更准确反映滚动轴承健康状态的健康指标(Health Indicator
HI)。
方法
2
首先,对滚动轴承全寿命周期振动信号进行多维特征提取,并从相关性、单调性、可预测性和鲁棒性4个维度对特征进行了定量分析;其次,采用熵权法对上述指标进行线性加权,构建综合评价指标,并选取得分较高的特征作为优选特征;最后,利用IVY算法对优选特征进行自适应融合,形成最终的HI。
结果
2
试验结果表明,所构建的HI能够精准捕获滚动轴承全寿命周期中的关键演化拐点;相较于单一特征,本文所提方法在相关性、可预测性和鲁棒性等方面表现更优,验证了该法在滚动轴承健康评估与预防性维护中的有效性和可靠性。
Objective
2
To address the challenge of insufficiently capturing critical degradation information in the performance degradation assessment (PDA) of rotating machinery components such as rolling bearings
this study proposes an adaptive optimized feature fusion method based on the Ivy algorithm (IVY). The aim is to construct a health indicator (HI) that more accurately reflects the health status of rolling bearings.
Methods
2
Firstly
multidimensional features were extracted from vibration signals collected throughout the full lifecycle of rolling bearings
and the correlation
monotonicity
prognosability
and robustness were quantitatively analyzed. Secondly
the entropy weighting method was employed to linearly weight these indicators to construct a composite evaluation index
from which higher-scoring features were selected as the preferred set. Finally
the IVY algorithm was applied to adaptively fuse the selected features
yielding the ultimate HI.
Results
2
Test results demonstrate that the constructed HI can precisely capture the critical evolutionary turning points during the entire lifecycle of rolling bearings. Compared with single-feature-based indicators
the proposed HI exhibits superior performance in correlation
prognosability
and robustness
thereby verifying the effectiveness and reliability of the proposed method for health assessment and preventive maintenance of rolling bearings.
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