This paper studied the linear structure system modal parameters identification based on Genetic Algorithms.

本文系统地研究了基于遗传算法的线性结构系统模态参数识别方法。

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In this paper, focus on vibrating problem of floor during one sedan development, the author finds out the reason lies to exhaust pipe system by road test and modal test.

针对某轿车开发过程中的地板振动问题，通过道路试验和模态试验，发现排气管的振动对地板振动影响很大，是地板振动的主要原因。

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This method directly deals with measurable signal of the system, mathematical modal and relevant transcendental knowledge isn't needed, so it is more practical than other methods.

这种方法可直接处理系统的可测输出信号，不需要对象的数学模型和相关先验知识，具有较高的实用性。

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