The-truss was designed and assembled first.Low order modes of the truss were measured in experiment through LMS system and other program, also the vibration response of the truss under excitation.

• 文中设计了一压电桁架结构,利用LMS系统和自编程序,通过实验测定了结构的低阶模态,继而进行了一阶固有频率激振。