Vibroacoustic efficiency criteria for lowfrequency vibration treatment of welded metal structures

Труды Крыловского государственного научного центра

Vyacheslav P. Gorodishensky¹  Mikhail A. Budnichenko¹  Dmitry A. Luzhansky¹  Vladimir A. Nekrasov¹ 

[1] JSC PO Sevmash;

关键词: amplitude-frequency characteristic;    vibration acceleration;    vibration mode;    cross-spectral analysis;    mechanical loss coefficient;    low-frequency vibration treatment;    welded structure;    frequency;   

DOI  :  10.24937/2542-2324-2018-4-386-176-180

来源: DOAJ

【 摘 要 】

Object and purpose of research. This paper studies a large welded sidewall structure manufactured at Sevmash. The purpose of the study is to determine vibroacoustic efficiency criteria for low-frequency vibration treatment. Materials and methods. Dynamic parameters of the sidewall were studied by exciting it by impact during its low-frequency treatment, an intermediate operation prior to mechanical processing. Main results. This work identified vibroacoustic efficiency criteria for low-frequency vibration treatment of welded sidewall structures. Conclusion. This work shows that monitoring of amplitude-frequency parameters could be applied in assessment of efficiency (sufficiency) for low-frequency treatment.

【 授权许可】

Unknown