Abstract
Bistable Deployable Composite Boom(Bi-DCB)can achieve bistable function by storing and releasing strain energy,which has a good application prospect in space field.For example,it serves as the main support section of deployable structures(e.g.,solar arrays and antennas).This paper investigates folding stable state of Bi-DCB through the analytical method.Based on Archi-medes'helix and energy principle,an analytical model for predicting folding stable state of Bi-DCB was presented.The failure index of Bi-DCB in folding stable state were analyzed using the Tsai-Hill criterion and the maximum stress criterion.Then,a 2400 mm long Bi-DCB was fabricated using autoclave method.The prediction results of the proposed model were compared with experiments and results of two other analytical models.It is shown that the proposed model shows good predic-tion accuracy.Finally,the effect of geometric parameters on folding stable state of Bi-DCB was fur-ther investigated with the aid of the proposed model.
基金项目
National Natural Science Foundation of China(52275231)
National Defense Basic Scientific Research Program of China(JCKY2019205C002)
NETL
NSTL
万方数据