Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures

Alexandra Kiri; Zoltán Weltsch

doi:10.30939/ijastech..1759118

Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures

Abstract

In this study, the natural frequency changes, induced by vibratory stress relief, were ana-lysed. Vibratory stress relief (VSR) is a possible alternative to thermal stress relief (TSR), which can be applied to welded structures and castings to reduce residual stresses. In this paper, acoustic-based natural frequency measurements will be presented to investigate the effect of VSR treatment. Natural frequency measurements were taken on large disc-type grey cast iron components, before and after the VSR treatment and we have analysed the results for five sim-ilar castings from the same batch. The natural frequencies change when the stress state of the workpiece changes. Changes in the frequencies have been examined, and we have identified a pattern for a specific treatment parameter setting. Measurement images – spectrograms - were generated to visualize the frequency response, where stress-induced variations appeared as shifts in resonance bands. Across all five tested components, a consistent decrease in dominant natural frequencies was observed. While the results mostly align with theoretical expectations, they also highlight the complex, time-dependent behaviour of residual stress redistribution. Fur-ther long-term monitoring is recommended to clarify post-treatment evolution and material-specific responses. The results can open new directions for the automotive and heavy industry to effectively reduce residual stresses and monitor the performance of the workpieces.

Keywords

References

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Details

Primary Language

English

Subjects

Automotive Engineering (Other)

Journal Section

Research Article

Authors

Alexandra Kiri ^*
0009-0001-3233-8570
Hungary

Zoltán Weltsch This is me
0000-0002-6366-8281
Hungary

Early Pub Date

November 27, 2025

Publication Date

December 17, 2025

Submission Date

August 8, 2025

Acceptance Date

November 19, 2025

Published in Issue

Year 2025 Volume: 9 Number: 1st Future of Vehicles Conf.

DOI

https://doi.org/10.30939/ijastech..1759118

IZ

https://izlik.org/JA79JF28ZC

Cite

RIS / Bibtex

APA

Kiri, A., & Weltsch, Z. (2025). Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures. International Journal of Automotive Science And Technology, 9(1st Future of Vehicles Conf.), 67-71. https://doi.org/10.30939/ijastech..1759118

AMA

1.Kiri A, Weltsch Z. Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures. IJASTECH. 2025;9(1st Future of Vehicles Conf.):67-71. doi:10.30939/ijastech.1759118

Chicago

Kiri, Alexandra, and Zoltán Weltsch. 2025. “Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures”. International Journal of Automotive Science And Technology 9 (1st Future of Vehicles Conf.): 67-71. https://doi.org/10.30939/ijastech. 1759118.

EndNote

Kiri A, Weltsch Z (December 1, 2025) Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures. International Journal of Automotive Science And Technology 9 1st Future of Vehicles Conf. 67–71.

IEEE

[1]A. Kiri and Z. Weltsch, “Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures”, IJASTECH, vol. 9, no. 1st Future of Vehicles Conf., pp. 67–71, Dec. 2025, doi: 10.30939/ijastech..1759118.

ISNAD

Kiri, Alexandra - Weltsch, Zoltán. “Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures”. International Journal of Automotive Science And Technology 9/1st Future of Vehicles Conf. (December 1, 2025): 67-71. https://doi.org/10.30939/ijastech. 1759118.

JAMA

1.Kiri A, Weltsch Z. Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures. IJASTECH. 2025;9:67–71.

MLA

Kiri, Alexandra, and Zoltán Weltsch. “Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures”. International Journal of Automotive Science And Technology, vol. 9, no. 1st Future of Vehicles Conf., Dec. 2025, pp. 67-71, doi:10.30939/ijastech. 1759118.

Vancouver

1.Alexandra Kiri, Zoltán Weltsch. Natural Frequency Changes Induced by Vibratory Stress Relief in Automotive and Heavy Industry Structures. IJASTECH. 2025 Dec. 1;9(1st Future of Vehicles Conf.):67-71. doi:10.30939/ijastech. 1759118