Effects of particle damper design parameters on the damping performance of laser powder bed fused structures

Birol Ozcevik, Emrecan Soylemez*, Bekir Bediz, Ugur Simsek

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Particle dampers (PD), a passive damping technology, absorb energy from particle-particle and particle-cell wall interactions originating from friction and collision. PDs offer advantages such as design simplicity, low cost, applicability in harsh conditions, and flexibility to be used in a wide frequency band range. Additive manufacturing, specifically the powder bed fusion process, can fabricate structures with integrated PDs in a single printing process, eliminating the need to implement external dampers. However, the dynamic behavior of PDs must be determined to utilize their full potential. In this study, we examined 16 cases of integrated PDs by varying specific parameters including size, number, and locations on the structure to understand the effects of these parameters on the dynamic behavior of the first and second modes of the structure. Modal tests were conducted on additively manufactured samples to extract frequency response functions and calculate modal parameters (natural frequency and damping ratio) using the rational fraction polynomial method, studying the effects of PDs. The results showed that the damping performance of the parts was increased by a factor of up to 10 using body-integrated PDs compared with the fully fused specimen. The effectiveness of body-integrated PDs was shown to be strongly dependent on their volume and location. For instance, the damping generally increased as the volume fraction increased, which also reduced the total weight of the specimens by up to 60 g. Furthermore, the damping performance significantly increased for a specific mode when the PDs were located near the maximum displacement regions.

Original languageEnglish
Pages (from-to)3917-3928
Number of pages12
JournalInternational Journal of Advanced Manufacturing Technology
Volume130
Issue number7-8
DOIs
Publication statusPublished - Feb 2024

Bibliographical note

Publisher Copyright:
© 2024, The Author(s).

Funding

This study was carried out under the TUBITAK Technology and Innovation Support Program (Grant number: 5158001). Open access funding provided by the Scientific and Technological Research Council of Türkiye (TÜBİTAK).

FundersFunder number
TUBITAK Technology and Innovation Support Program
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu5158001

    Keywords

    • Additive manufacturing (AM)
    • Damping ratio
    • Dynamic behavior
    • Inconel 718
    • Laser powder bed fusion (L-PBF)
    • Particle damping

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