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针对传统的桥梁风振分析中对颤振和抖振分析分别处理的现象，提出了统一的颤振和抖振时程分析方法，并且考虑了结构的几何非线性和气动非线性。该方法以非线性有限元的直接积分法为基础，在研究中具体解决了随机风速场的模拟、耦合自激力的时域计算和统一的颤抖振时程分析流程等关键问题。纠正了过去时程分析方法不能同时处理颤振和抖振的理论缺陷，在时域中统一了颤振和抖振的分析方法，并编制了可视化分析软件Ｎｂｕｆｆｅｔ。该方法和软件对大跨度桥梁风振分析具有重要意义。
Aiming at the phenomenon of traditional chatter analysis of flutter and chattering analysis, a unified chattering and chattering time history analysis method is proposed, and the geometric nonlinearity and aerodynamic nonlinearity of the structure are considered. Based on the direct integral method of nonlinear finite element method, the method solves the key problems of random wind speed field simulation, time-domain calculation of coupled self-excitation and unified flow analysis process of tremor. Corrects the theoretical defects that past time-history analysis method can not deal with chatter and chattering at the same time, unifies chaos and chattering analysis method in time domain, and prepares visual analysis software Nbuffet. The method and software are of great significance to wind-induced vibration analysis of long-span bridges.