图7. 准零刚度隔振装置力位移曲线,其中混杂双稳定层合板的铺层为[$0_{ 0.25~{\rm mm}}/{\rm Al}_{ 0.2~{\rm mm}}/90_{ 0.25~{\rm mm}}$],k为线性弹簧的总刚度
Fig.7. Load-displacement curves of the vibration isolator, the lay-up of the bistable laminate is [$0_{0.25~{\rm mm}}/{\rm Al}_{0.2~{\rm mm}}/90_{ 0.25~{\rm mm}}$], k is the stiffness of linear spring