With the help of model reducing technique, full order model is reduced to simplify the design without degrading much of the performance.
借助于模型降阶技术，在不显著降低系统性能的前提下，降低模型的阶数以简化设计。
Reducing the order of a large structural finite element model is important in improving the efficiency of finite element analysis in the field of structural dynamics and vibration.
对大型复杂结构振动有限元模型进行减缩降阶，是使结构有限元模型可有效地用在结构动力分析和振动计算方面的一个重要措施。
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