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Experimental Modal Analysis and its Application in Structure Dynamic Characters of CNC Machine Tools

Qingxin Meng

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Abstract

Experimental modal analysis(EMA) is one of most methods to analyze the dynamic characters of machinery.The application of EMA in machine tools' structure dynamic features is illustrated in order to improve the dynamics performance.A set of modal analysis system for machine tools is developed on the platform LabVIEW combined with Matlab based on modal analysis theory and modal testing technology.A case of spindle assembly of a vertical CNC machine tools is implemented and the results are given to verify the functions of the developed system.

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What this paper is about

Experimental modal analysis(EMA) is one of most methods to analyze the dynamic characters of machinery.The application of EMA in machine tools' structure dynamic features is illustrated in order to improve the dynamics performance.A set of modal analysis system for machine tools is developed on the platform LabVIEW combined with Matlab based on modal analysis theory and modal testing technology.A case of spindle assembly of a vertical CNC machine tools is implemented and the results are given to verify the functions of the developed system.

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Available abstract

Experimental modal analysis(EMA) is one of most methods to analyze the dynamic characters of machinery.The application of EMA in machine tools' structure dynamic features is illustrated in order to improve the dynamics performance.A set of modal analysis system for machine tools is developed on the platform LabVIEW combined with Matlab based on modal analysis theory and modal testing technology.A case of spindle assembly of a vertical CNC machine tools is implemented and the results are given to verify the functions of the developed system.

Key concepts: Modal, Modal analysis, MATLAB, Modal testing, Machine tool, Computer science, Numerical control, Modal analysis using FEM

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