Design and numerical performance analysis of a microgravity accelerometer with quasi-zero stiffness

doi:10.1088/1361-665X/ab8838

CIOMP OpenIR

	Design and numerical performance analysis of a microgravity accelerometer with quasi-zero stiffness
	Y. X. Duan,X. Y. Wei,H. R. Wang,M. H. Zhao,Z. M. Ren,H. Y. Zhao and J. Ren
	2020
发表期刊	Smart Materials and Structures
ISSN	0964-1726
卷号	29 期号:7 页码:11
摘要	We report a nonlinear electrothermal-loaded accelerometer for microgravity measurement, achieving quasi-zero stiffness nearby its static equilibrium position. The high mechanical sensitivity is attributed to the compression of the spring, in addition to the geometric parameters matched with quasi-zero stiffness characteristic. To make the spring compressed effectively, a V-shape electrothermal actuator was adopted in the design. The FEA results in multiphysics clearly show the different performance of the accelerometer when it is at applied voltage or not, verifying that the electrothermal-loaded mechanism has an effective influence on the sensitivity of accelerometer. At the applied voltage of 22.3 V, the natural frequency of the accelerometer decreases from 501.95 Hz to 8.24 Hz, while the other two higher mode frequencies remain above 500 Hz. In addition, this mechanism realizes a quasi-zero stiffness approximately of 0.007 N m(-1) within a linear working range of +/- 400 mu g and the stiffness becomes larger beyond this range protecting the device being overloaded.
DOI	10.1088/1361-665X/ab8838
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64407
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. X. Duan,X. Y. Wei,H. R. Wang,M. H. Zhao,Z. M. Ren,H. Y. Zhao and J. Ren. Design and numerical performance analysis of a microgravity accelerometer with quasi-zero stiffness[J]. Smart Materials and Structures,2020,29(7):11.
APA	Y. X. Duan,X. Y. Wei,H. R. Wang,M. H. Zhao,Z. M. Ren,H. Y. Zhao and J. Ren.(2020).Design and numerical performance analysis of a microgravity accelerometer with quasi-zero stiffness.Smart Materials and Structures,29(7),11.
MLA	Y. X. Duan,X. Y. Wei,H. R. Wang,M. H. Zhao,Z. M. Ren,H. Y. Zhao and J. Ren."Design and numerical performance analysis of a microgravity accelerometer with quasi-zero stiffness".Smart Materials and Structures 29.7(2020):11.

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