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本文利用模态分析(包括计算模态分析及实验模态分析技术),对IPF—85B 型混凝土泵车系统进行了动态分析。在计算系统动力响应时,要更真实地接近实际系统,必须考虑阻尼项的影响。一般阻尼矩阵〔C〕中的诸元C_((?)y)是不易确定的,我们借助于实验模态分析技术,对该动力系统进行参数识别,从而得到系统的诸动态参数,其中包括诸阶模态阻尼比ε_(?),固有频率P_(?)等,利用计算模态分析求解计及了阻尼影响的系统动力响应。
In this paper, modal analysis (including computational modal analysis and experimental modal analysis), dynamic analysis of IPF-85B concrete pump truck system. In calculating the dynamic response of the system, it is necessary to consider the influence of the damping term in order to approach the actual system more truly. General C damping matrix (C) of the element C _ ((?) Y) is not easy to determine, by means of experimental modal analysis of the dynamic system parameters to identify the dynamic parameters of the system, including Modal damping ratio ε_ (?), Natural frequency P_ (?) And so on, the dynamic response of the system affected by damping is calculated by computational modal analysis.