在模态试验的基础上，用模态综合及复模态方法分析了汽车制动时鼓式制动器的尖叫特性。
On the basis of modaling experiments, the squealing characteristic of drum brake, when motor vehicle is being braked, is studied by applying modal synthesis and complex modaling methods.
本文运用模态子结构综合法进行结构动态计算和用实验模态分析法进行模型试验，对悬臂平板和结构模型的动力吸振器主要参数进行了比较系统的优化研究。
Based on modal synthetical method and experimental modal analysis, the main parameters of dynamic vibration absorber on a cantilever plate and on a structural model are optimized in this paper.
综合论述了多点激振系统的硬件、软件的组成与配置，以及模态试验技术的理论依据和基本算法。
The composition and configuration of hardware and software for the multipoint excitation system and theoretical base and basic calculation of modal test technique are discussed.
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