Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62273
Title: Design of a quasi-zero-stiffness based sensor system for the measurement of absolute vibration displacement of moving platforms
Authors: Jing, X 
Wang, Y
Li, Q
Sun, X
Keywords: Displacement sensor systems
Nonlinear stiffness
Vibration measurement
Issue Date: 2016
Publisher: Institute of Physics Publishing
Source: Smart materials and structures, 2016, v. 25, no. 9, 097002 How to cite?
Journal: Smart materials and structures 
Abstract: This study presents the analysis and design of a novel sensor system for measuring the absolute vibration displacement of moving platforms based on the concept of quasi-zero-stiffness (QZS). The sensor system is constructed using positive- and negative-stiffness springs, which make it possible to achieve an equivalent QZS and consequently to create a broadband vibration-free point for absolute vibration displacement measurement in moving platforms. Theoretical analysis is conducted for the analysis and design of the influence of structure parameters on system measurement performance. A prototype is designed which can avoid the drawback of instability in existing QZS systems with negative stiffness, and corresponding data-processing software is developed to fulfill time domain measurements. Both the simulation and experimental results verify the effectiveness of this novel sensor system.
URI: http://hdl.handle.net/10397/62273
ISSN: 0964-1726
EISSN: 1361-665X
DOI: 10.1088/0964-1726/25/9/097002
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