Journal
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
Volume 190, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijmecsci.2020.106012
Keywords
Laminated composite plate; Vibration power flow; Inerter; Vibration transmission; Vibration suppression; Substructure method
Categories
Funding
- National Natural Science Foundation of China [51605233]
- Ningbo Science and Technology Bureau under Natural Science Programme [2019A610155]
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This paper investigates the vibration transmission and power flow behavior of harmonically excited laminated composite plates with different inerter-based suppression configurations. The results show that fiber orientation and stacking sequences significantly impact power flow characteristics and dominant vibration transmission paths. Passive elements attached to the plate can modify its vibration response and transmission according to specific design requirements.
This paper investigates the vibration transmission and power flow behaviour of harmonically excited laminated composite plates attached with different inerter-based suppression configurations. The substructure approach based on analytical and numerical methods is employed to obtain the steady-state dynamic response. Power flow analysis is carried out to determine the time-averaged power flow input and transmission as well as the kinetic energy of the plate. The power flow density vector is used to show explicitly the vibration transmission paths within the composite plate. It is shown that the fibre orientation and stacking sequences can have significant effects on the time-averaged power flow characteristics as well as the dominant vibration transmission paths. It is also shown that passive spring, damper and inerter elements may be attached to the plate to modify its vibration response and transmission according to specific design requirements. The proposed inerter-based suppression device with two different configurations can reduce the vibration level over a wide frequency range for vibration suppression. The findings may provide insights for the enhanced dynamic designs of laminated composite plates, and the suppression of their vibrations using inerter-based devices.
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