modal testing and analysis 模态测试分析
The testing of structural modal parameters is an important basis of dynamic response analysis and structural damage detection.
结构模态参数的测试是进一步进行结构动力响应计算、结构损伤检测等的重要基础。
The variation of structural frequency before and after the damage is believed to be a most available and widely used modal parameter because of its easy testing and high measure precision.
由于结构频率容易测试并且有较高的测量精度，因此成为损伤识别中广泛应用的模态参数。
The paper applies the vibration theory, modal analysis theory and the technique of vibration testing & signal processing to make an analysis of the calculating modal and test dynamic characteristics.
应用振动理论、有限元方法、模态分析理论对干燥机进行了计算模态分析和动态试验。
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