The elastic-plastic time history analysis on seismic retrofitting of the energy dissipation structures is researched, mainly solved following several problems: Definite structure vibration model;
对用于抗震加固的消能减震结构进行了弹塑性时程分析研究，主要解决以下几个问题：确定结构的振动模型；
With taking into account some uncertainty factors, the vibration control model of piezoelectricity intelligent beam structure is founded.
在此基础上，考虑模型的不确定性因素，建立了不确定压电智能梁结构的振动控制模型。
On the basis of cutting force model and vibration model of machine tools structure, the effect of the regenerative chatter on the stability of end milling is focused.
存得到切削力模型和机床结构振动模型的基础上，着重研究了再生型颤振对铣削加工过程稳定性的影响。
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