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Open AccessArticle

Secondary Development and Application of Bio-Inspired Isolation System

1
Department of Disaster Mitigation for Structures, Tongji University, Shanghai 200092, China
2
Shanghai RB Science & Technology Co., Ltd., Shanghai 201400, China
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(1), 278; https://doi.org/10.3390/su11010278
Received: 6 December 2018 / Revised: 3 January 2019 / Accepted: 4 January 2019 / Published: 8 January 2019
Near-fault pulse motions will cause excessive and much larger base displacement in traditional isolated structures than common earthquake motions. The new isolation system inspired by the “sacrificial bonds and hidden length” biomechanics of an abalone shell can control the base displacement efficiently and reach almost the same vibration isolation efficiency as a semi-active control system. The current research is confined to the lumped mass model and cannot uncover the exact performance of isolators and structures in practical applications. A user subroutine is developed based on the interface of UEL in Abaqus. Subsequent verification has been done in both the lumped mass model and 3D complex model with Abaqus, Matlab/Simulink, and SAP2000. It can be revealed from the comparative results that the calculation accuracy of the secondary developed user subroutine can meet the demand of design and research. View Full-Text
Keywords: user subroutine; vibration isolator; bio-inspired; near fault; negative stiffness; nonlinear analysis user subroutine; vibration isolator; bio-inspired; near fault; negative stiffness; nonlinear analysis
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Zhang, Q.; Shi, Z.; Shan, J.; Shi, W. Secondary Development and Application of Bio-Inspired Isolation System. Sustainability 2019, 11, 278.

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