Continuous frugal wavelet transform for damage detection in frame structures

被引：1

作者：

Saadatmorad, Morteza ^{[1
]}

Jafari-Talookolaei, Ramazan-Ali ^{[1
]}

Khatir, Samir ^{[2
]}

Ammar, Amine ^{[3
]}

Ghandvar, Hamidreza ^{[4
]}

Cuong-Le, Thanh ^{[2
]}

机构：

[1] Babol Noshirvani Univ Technol, Sch Mech Engn, Babol, Iran

[2] Ho Chi Minh City Open Univ, Ctr Engn Applicat & Technol Solut, Ho Chi Minh, Vietnam

[3] HESAM Univ, Arts & Metiers Inst Technol, LAMPA Lab, 2 Blvd Ronceray,BP 93525, F-49035 Angers 01, France

[4] New Uzbekistan Univ, Fac Engn, Dept Mech Engn, Movarounnahr St 1, Tashkent, Uzbekistan

来源：

APPLIED ACOUSTICS | 2025年 / 234卷

关键词：

Continuous frugal wavelet transform; Damage detection; Frame structure; Frugal wavelet transform; Structural health monitoring; TRUSS STRUCTURES; CRACK IDENTIFICATION; OPTIMIZATION; GEOMETRY; DESIGN;

D O I：

10.1016/j.apacoust.2025.110621

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Wavelet transform is widely used for analyzing signals in the time-frequency domain. However, its effectiveness in damage detection can be limited by the selection of wavelet function and its vanishing moments. To address this, we introduce the Frugal Wavelet Transform (FWT) and its continuous version, the Continuous Frugal Wavelet Transform (CFWT). We then apply the CFWT to detect damage in frame structures, showcasing a novel approach to this problem. The results demonstrate that both the discrete and continuous frugal wavelet transforms provide highly accurate damage detection, as confirmed through numerical simulations and experimental tests. Furthermore, the results show that the Continuous Frugal Wavelet Transform consistently outperforms the traditional Continuous Wavelet Transform across all scenarios.

引用

页数：17

共 48 条

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