Abstract:The force-state mapping is usually used to identify the equivalent dynamic parameters of nonlinear joint, which needs lots of data from instruments or from differential or integral, such as excitation force, velocity, displacement, and acceleration. But if those signals happened to suffer phase distortion, parameters identified from the force-state mapping will engender errors. Error formulations of identified parameters were derivated by vector diagram when the single degree of freedom system suffered a narrow range of phase distortion. The results indicate that the system stiffness is influenced heavily by the narrow range of phase distortion compared with the system damping.
蒋国庆,李家文,唐国金. 基于矢量图的力状态映射法辨识参数误差分析[J]. 振动与冲击, 2016, 35(24): 128-131.
JIANG Guo-qing,LI Jia-wen,TANG Guojin. Error analysis in parameters from the force-state mapping method based on vector diagram. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(24): 128-131.
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