Enhanced Vibration Damping Performance of Pre-stressed Granular Materials : Experimental Investigation

• 資料種別: 記事
• タイトル: Enhanced Vibration Damping Performance of Pre-stressed Granular Materials : Experimental Investigation
• 著者・編者: Simon OMAN; Igor EMRI; Marko NAGODE; Ales GOSAR
• 著者標目: Simon OMAN; Igor EMRI; Marko NAGODE; Ales GOSAR
• タイトル（掲載誌）: Advanced experimental mechanics / Editorial board for advanced experimental mechanics [編]
• 巻号年月日等（掲載誌）: 8:2023.8
• 掲載巻: 8
• 掲載ページ: 3-10
• 掲載年月日（W3CDTF）: 2023-08
• ISSN（掲載誌）: 2189-4752
• ISSN-L（掲載誌）: 2189-4752
• 出版事項（掲載誌）: Niigata : The Japanese Society for Experimental Mechanics
• 出版地（国名コード）: JP
• 本文の言語コード: eng
• NDLC: ZM17
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z63-D560
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 033102121; http://id.ndl.go.jp/bib/033102121
• 整理区分コード: 632

• 要約等: <p>Granular materials hold significant promise for the development of high-performance, lightweight vibrationdamping elements, offering increased levels of safety and comfort. This study focuses on exploring the vibration damping properties of pre-stressed granular material. A comprehensive investigation is conducted, to show by how much the damping properties can be improved in a simple solution if the solid material is replaced by granulate from the same material, while maintaining the macro geometry. Experimental results demonstrate that the granular material exhibits a remarkable improvement of up to 560 % in vibration damping performance compared to the same bulk material.</p><p>This enhancement is attributed to the synergistic effects of two governing factors. Firstly, the pressure-frequency superposition principle operates at the molecular scale, particularly prominent under high pre-stress conditions. Secondly, physical interactions between granules, commonly referred to as the strong force-network phenomenon, play a vital role at the macro scale, particularly influential under low pre-stress conditions. The combination of these effects that complement each other, results in overall superior energy absorption performance.<i><b> </b></i></p>
• DOI: 10.11395/aem.8.0_3
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: <p>Granular materials hold significant promise for the development of high-performance, lightweight vibrationdamping elements, offering increased levels of safety and comfort. This study focuses on exploring the vibration damping properties of pre-stressed granular material. A comprehensive investigation is conducted, to show by how much the damping properties can be improved in a simple solution if the solid material is replaced by granulate from the same material, while maintaining the macro geometry. Experimental results demonstrate that the granular material exhibits a remarkable improvement of up to 560 % in vibration damping performance compared to the same bulk material.</p><p>This enhancement is attributed to the synergistic effects of two governing factors. Firstly, the pressure-frequency superposition principle operates at the molecular scale, particularly prominent under high pre-stress conditions. Secondly, physical interactions between granules, commonly referred to as the strong force-network phenomenon, play a vital role at the macro scale, particularly influential under low pre-stress conditions. The combination of these effects that complement each other, results in overall superior energy absorption performance.<i><b> </b></i></p>
• DOI: 10.11395/aem.8.0_3; https://doi.org/10.11395/aem.8.0_3
• 関連情報（URI）: http://id.ndl.go.jp/bib/033102121; https://ndlsearch.ndl.go.jp/books/R000000004-I033102121
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 033102121; http://id.ndl.go.jp/bib/033102121