针对桁架结构的稳定性问题，建立了一种新型的含压电主动杆件的桁架结构，并对该结构在周期性荷载作用下的动力稳定性进行了研究，研究发现该压电桁架结构的动力稳定性能明显增强，说明这种方法是有效的、可行的。%Aiming at the stability issue of the truss structure, the paper establishes the truss structure with piezoelectric driving bar, researches the dynamic stability of the structure under the periodic loading, finds the dynamic stability of the piezoelectric truss is increased obviously, and indicates the method is effective and feasible.
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