【摘要】 回顾与研究了结构振动负刚度控制的来源、作用及实现方式,以便为负刚度控制的实际工程应用打下基础.研究表明:主动控制力除了阻尼项外,主要体现出负刚度控制特性,且对减振效果起决定性的作用,而这正是经常使用的被动减振装置所无法体现的特性;基于磁流变阻尼器的半主动控制系统在很多情况下可以达到或接近主动控制的效果,也正是因为其能够实现负刚度控制特性.更多还原

【Abstract】 The source,effect and realization of negative stiffness in structural vibration control system are reviewed in detail in the paper in order to lay a foundation for the actual engineering application of negative stiffness control.It is found that active control force mainly shows negative stiffness besides the damping components,and it determines the damping effect,which cannot be realized by the passive damping devices.Moreover,semi-active control system based on MR dampers can achieve or approach the control performance of active control for it can realize the negative stiffness control.更多还原