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المؤلفMohamed, Khaled Saad
المؤلفAmri, Fatin
المؤلفElboraey, Mostafa Mohamed
المؤلفNordin, N.H. Diyana
المؤلفAbdul Muthalif, Asan Gani
تاريخ الإتاحة2024-05-14T03:51:41Z
تاريخ النشر2022
اسم المنشورStrojniski Vestnik/Journal of Mechanical Engineering
المصدرScopus
المعرّفhttp://dx.doi.org/10.5545/sv-jme.2021.7458
الرقم المعياري الدولي للكتاب392480
معرّف المصادر الموحدhttp://hdl.handle.net/10576/54933
الملخصAll structures experience vibrations due to external dynamic force excitations, such as earthquakes and wind loadings. At resonance, the impact of this natural dynamic force on structures may lead to structural failures. Hence, an absorber is mounted to absorb vibrations from the primary system. Unfortunately, passive tuned mass absorbers can only target a single frequency. Since structural buildings possess multiple modes, an adaptive or tune-able vibration absorber is needed to attenuate the vibration in a multi-degree of freedom (MDOF) system. In this work, an adaptive electromagnetic vibration absorber (AEMVA) is proposed to eliminate the effects of vibrations and is dynamically tuned using electromagnets. By varying the current supplied to the coil, the stiffness of the AEMVA can be adjusted, resulting in a varying absorber frequency. A mathematical description of the AEMVA on a three-story prototype model building is also presented. The three-story benchmark model was used to demonstrate the effectiveness of AEMVA in absorbing multiple vibration modes, both analytically and experimentally. It is shown that 68.81 %, 50.49 %, and 33.45 % of vibration amplitude reductions were achieved at the first, second, and third modes, respectively.
راعي المشروعThis work is partly supported by Qatar University Student Grant no: QUST-2-CENG-2020-3.
اللغةen
الناشرAssoc. of Mechanical Eng. and Technicians of Slovenia
الموضوعadaptive vibration absorber
dynamic modelling
electromagnetic vibration absorber
multimode system
structural vibration control
العنوانAdaptive Electromagnetic Vibration Absorber for a Multimode Structure
النوعArticle
الصفحات191-199
رقم العدد3
رقم المجلد68
dc.accessType Abstract Only


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