Mechanism of Bio-Inspired Ultrasensitive Low Frequency Sensor with Mechanics Analysis

Li Jun Liu; Ying Lei

doi:10.4028/www.scientific.net/AMM.252.162

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Mechanism of Bio-Inspired Ultrasensitive Low Frequency Sensor with Mechanics Analysis
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Structural Optimization of Packer’ Cone with Material Properties and Mechanics Parameters Based on ANSYS
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 252Mechanism of Bio-Inspired Ultrasensitive Low...

Mechanism of Bio-Inspired Ultrasensitive Low Frequency Sensor with Mechanics Analysis

Abstract:

It is essential to develop ultrasensitive low frequency sensors for efficient structural health monitoring and early warning of natural disasters. Many fishes have been reported to have acute sensitivity to low frequency. Based on the mechanism of the infrasound sensitivity of fish, mechanism of bio-inspired ultrasensitive low frequency sensor is explored by a mechanical model with gating spring hypothesis for simulating the mechanical-electricity transduction of the hair cell in fish ear. Numerical analyses of the mechanical model subject to static and dynamic loading are conducted respectively by OpenSees. Under static loading, displacement response of gating model is more sensitive to weak loading due to the opening of gating spring. Under dynamic loading, the gating model is more acute sensitive to low frequency and weak loading due to the adaptive amplification of gating spring. This mechanical function can be used as the theoretical basis for the design of ultrasensitive bio-inspired low frequency sensors.

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Periodical:

Applied Mechanics and Materials (Volume 252)

Pages:

162-166

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.252.162

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Online since:

December 2012

Authors:

Li Jun Liu, Ying Lei

Keywords:

Adaptive Amplification, Bio-Inspired Sensor, Gating Spring, Hair Cell, Low Frequency, Negative Stiffness

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