When the spacecraft structural dynamic model is updated using test data, the freedom of FEM can be matched with test freedom by means of reduction method.
利用试验数据修正航天器结构动力模型时，使用缩聚方法使有限元自由度与试验自由度匹配。
A new model reduction method for dynamic analysis of complex structures based on Quasi-Rigid-Body mode and Flexibility Modification is presented.
提出一种基于柔度修正的局部刚体化结构动力模型简化方法。
It is different from base isolation system and roof isolation system in many aspects, such as, its vibration reduction mechanism, dynamic characteristics and design method, etc.
层间隔震结构在减震机理、振动特性以及设计方法等诸多方面有别于基础隔震结构和屋盖隔震结构。
A new method on dynamic balance. Selected-frequency dynamic equilibrium has been put out and applied Successfully to the reduction of industrial Sewing machine Tape GC301-01 and Tape 885.
本文结合GC 301 - 01型中速平缝机及885型高速平缝机的降噪减振研究，提出了一种新的平衡方法——选频动平衡。
A new model reduction method based on deformation modification is presented for dynamic analysis.
提出一种基于变形修正的动力模型简化方法。
It indicates that the calculation results show the vibration reduction function of the honeycomb seals, and the method to calculate dynamic coefficients is feasible.
计算实例表明，应用文中所述方法所得计算结果可以用于定量地说明蜂窝密封的减振效果，该计算方法切实可行。
A reduction calculation method based on fixed interface component mode synthesis is applied to analyze nonlinear dynamic stability of an actual large-scale rotor-bearing system.
采用基于固定界面模态综合法的降维方法对大型实际非线性转子-轴承系统稳定性进行了分析。
A reduction calculation method based on fixed interface component mode synthesis is applied to analyze nonlinear dynamic stability of an actual large-scale rotor-bearing system.
采用基于固定界面模态综合法的降维方法对大型实际非线性转子-轴承系统稳定性进行了分析。
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