Based on the modal test results of truck cab, the finite element model for dynamic analysis of the truck cab was modified.
本文利用货车驾驶室的测试模态参数来修正其有限元动力分析模型。
A model for dynamic analysis on a whole hydroelectric machine system was studied by multiple step mode synthesis technique, which consists of rotary and fixed components.
采用多级模态综合技术并利用结构旋转对称的特点，建立包括转动部件和固定部件在内的水轮机整机系统动力特性分析模型。
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