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Introducing sound analysis technique into simulation of crushing of granular materials

机译：将声音分析技术引入粒状物料破碎模拟中

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摘要

Signal processing techniques have been introduced in last two decades into geotechnical applications to analyze particle-scale microstructure. In this paper, a different approach for geotechnical application of signal processing techniques will be introduced. The crushing of granular particles was analyzed by using sound analysis technique during the shear process of granular materials. Sound analysis setup is implemented to direct shear box to analyze the crushing of granular materials under shear loading. The microphone signal by using Electret Microphone is processed and the signal coming from microphone was analyzed by using Fourier Transform method. Although the analysis is very complex, it is believed the information obtained will help in understanding when the crushing process begins and the extent of crushing which will lead to better understanding of granular materials subjected to shear.
机译：在过去的二十年中，信号处理技术已被引入岩土工程中以分析颗粒级的微观结构。在本文中，将介绍一种在岩土工程中应用信号处理技术的不同方法。在颗粒材料的剪切过程中，采用声音分析技术分析了颗粒的破碎情况。实施声音分析设置以直接引导剪切箱，以分析剪切载荷下颗粒状物料的破碎情况。使用驻极体麦克风处理麦克风信号，并使用傅立叶变换法分析来自麦克风的信号。尽管分析非常复杂，但可以认为所获得的信息将有助于理解何时开始破碎过程以及破碎程度，从而可以更好地了解受剪切作用的粒状材料。

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