1.南昌航空大学 无损检测技术教育部重点实验室,南昌 330063
2.福建省特种设备检验研究院 福建省特种智能装备安全与测控重点实验室,福州 350008
3.中国航发沈阳黎明航空发动机有限责任公司,沈阳 110043
袁凯,男,1998年生,江西新余人,硕士研究生;主要研究方向为无损检测;E-mail:845628692@qq.com。
收稿:2025-02-07,
修回:2025-02-23,
纸质出版:2026-05-15
移动端阅览
袁凯,李志农,张昕,等. 基于高阶同步提取变换的钢丝绳无损检测方法研究[J]. 机械强度,2026,48(5):30-39.
YUAN Kai,LI Zhinong,ZHANG Xin,et al. Research on nondestructive testing method of wire rope based on higher-order synchroextracting transform[J]. Journal of Mechanical Strength,2026,48(5):30-39.
袁凯,李志农,张昕,等. 基于高阶同步提取变换的钢丝绳无损检测方法研究[J]. 机械强度,2026,48(5):30-39. DOI: 10.16579/j.issn.1001.9669.2026.05.004.
YUAN Kai,LI Zhinong,ZHANG Xin,et al. Research on nondestructive testing method of wire rope based on higher-order synchroextracting transform[J]. Journal of Mechanical Strength,2026,48(5):30-39. DOI: 10.16579/j.issn.1001.9669.2026.05.004.
目的
2
针对电磁检测法检测钢丝绳时信号干扰大、现有同步提取变换方法处理强噪声时瞬时频率精度不高的问题,提出一种预处理优化方案。
方法
2
首先,提出了高阶同步提取变换(Higher-order Synchroextracting Transform
HSET)方法;然后,通过将检测信号的振幅和相位进行高阶Taylor级数展开,推导了高阶瞬时频率估算式,并结合delta函数构建了高阶同步提取算子;最后,利用该算子提取了关键时频成分并滤除了冗余能量,最终实现了信号重构。
结果
2
试验结果表明,所提方法能显著降低检测信号中尖峰和突变的频率,使信号轨迹趋于平缓,同时增强了奇异点位置的峰值幅度,为钢丝绳损伤的定量识别奠定了基础。
Objective
2
Electromagnetic testing of wire ropes is often compromised by significant noise interference and the limited accuracy of traditional synchroextracting transforms in estimating instantaneous frequencies under strong noise conditions.
Methods
2
A signal processing method based on higher-order synchroextracting transform (HSET) was proposed. The signal's amplitude and phase were expanded into high-order Taylor series to derive high-order instantaneous frequencies. By combining these frequencies with a delta function
a higher-order synchroextracting operator was developed to retain critical time-frequency information while eliminating redundant energy
followed by signal reconstruction.
Results
2
The test results demonstrate that the proposed method effectively reduces spikes and abrupt changes in the detected signal
resulting in a more stable signal profile. Furthermore
it increases signal peaks at singularity points
providing a robust foundation for the quantitative identification of wire rope damage.
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