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Elastomeric Material Systems for Vibroacoustic Energy Control

Cui, Shichao
http://rave.ohiolink.edu/etdc/view?acc_num=osu1587393807776172

Abstract Details

2020, Doctor of Philosophy, Ohio State University, Mechanical Engineering.
Structures and materials for vibration and acoustic energy attenuation have been of interest to industries and academia. This research investigates the integration of material system geometries, compression constraints, and acoustic-structure interactions for controlling vibroacoustic energy. The engineered material structures with flexible members exhibit tunable mechanical and dynamic properties that are non-intuitive in current vibration and acoustic energy control materials and structures. In addition, the integration of material characteristics, structural responses, and acoustic field is realized in acoustic resonators with structural members, and thus the absorption of acoustic energy is achieved through the material-structural-acoustic interaction. In this dissertation, the influence of external compression constraint on flexible members is investigated through analytical, experimental, and numerical efforts. The tunability of mechanical properties, and thus dynamic characteristics, is also studied. After the features of individual material system is investigated, the interaction between multiphysics situation is studied. Throughout the dissertation, analytical modelling has been a significant tool to describe and further explore system behaviors. The concept of utilizing structural compliance to tune the vibroacoustic characteristics of vibration and acoustic systems is confirmed in this work. The potential of tuning mechanical properties, natural frequency and amplitude, damping behavior, structural-acoustic interaction, mode shapes, and other features of a system is verified through experimental, analytical, and numerical efforts. This work broadens the avenue for vibroacoustic energy control and may inspire future design for multi-purpose structures and smart systems.
Ryan Harne (Advisor)
196 p.
Mechanical Engineering

Recommended Citations

Citations

  • Cui, S. (2020). Elastomeric Material Systems for Vibroacoustic Energy Control [Doctoral dissertation, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587393807776172

    APA Style (7th edition)

  • Cui, Shichao. Elastomeric Material Systems for Vibroacoustic Energy Control. 2020. Ohio State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1587393807776172.

    MLA Style (8th edition)

  • Cui, Shichao. "Elastomeric Material Systems for Vibroacoustic Energy Control." Doctoral dissertation, Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587393807776172

    Chicago Manual of Style (17th edition)

osu1587393807776172
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This open access ETD is published by The Ohio State University and OhioLINK.