TY - JOUR
T1 - A novel cylindrical negative stiffness structure for shock isolation
AU - Tan, Xiaojun
AU - Wang, Bing
AU - Chen, Shuai
AU - Zhu, Shaowei
AU - Sun, Yuguo
N1 - Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/4/15
Y1 - 2019/4/15
N2 - The negative stiffness (NS) metamaterial is a promising material that has attracted a great amount of interest. Many types of NS structures have been proposed and investigated. However, almost all of the previously proposed structures were cuboidal, which is undesirable for certain special engineering applications. In this paper, a cylindrical NS structure composed of spatial curved beams is proposed, and can potentially be applied to shock isolation, vibration control, and deployable structures. Specimens were fabricated using Fused Deposition Modeling (FDM) technology. The influence of the structural parameters on the NS property was investigated, and the criteria for the structure to achieve snap-through behavior were obtained. Impact tests were performed to investigate the structure's cushion performance. The results of the impact tests revealed that the structure achieved good cushion performance by thresholding the magnitude of the acceleration response, when the snap-through behavior occurred.
AB - The negative stiffness (NS) metamaterial is a promising material that has attracted a great amount of interest. Many types of NS structures have been proposed and investigated. However, almost all of the previously proposed structures were cuboidal, which is undesirable for certain special engineering applications. In this paper, a cylindrical NS structure composed of spatial curved beams is proposed, and can potentially be applied to shock isolation, vibration control, and deployable structures. Specimens were fabricated using Fused Deposition Modeling (FDM) technology. The influence of the structural parameters on the NS property was investigated, and the criteria for the structure to achieve snap-through behavior were obtained. Impact tests were performed to investigate the structure's cushion performance. The results of the impact tests revealed that the structure achieved good cushion performance by thresholding the magnitude of the acceleration response, when the snap-through behavior occurred.
KW - Cylindrical structure
KW - Negative stiffness
KW - Shock isolation
KW - Snap-through behavior
UR - http://www.scopus.com/inward/record.url?scp=85061428847&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2019.02.030
DO - 10.1016/j.compstruct.2019.02.030
M3 - 文章
AN - SCOPUS:85061428847
SN - 0263-8223
VL - 214
SP - 397
EP - 405
JO - Composite Structures
JF - Composite Structures
ER -