Modal Analysis and Fault Diagnosis of Dynamic Machine Foundation under Ambient Excitation

Jian Jun Liu; Ren Cheng Xiao; Fei Yue Xie; Wei Liu

doi:10.4028/www.scientific.net/AMR.842.607

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 842Modal Analysis and Fault Diagnosis of Dynamic...

Modal Analysis and Fault Diagnosis of Dynamic Machine Foundation under Ambient Excitation

Abstract:

This paper introduces the modal parameter identification method of a reinforced concrete block foundation under ambient excitation. On this basis, the dynamic characteristics of a stone cutting machine foundation are obtained by modal test under different operating conditions, and test results reveal that the main cause of abnormal vibration lies in lower dynamic stiffness of the whole structure. With the comparison of dynamic response between pre-reinforcement and post-reinforcement, reinforcement effects of high pressure grouting technique and pre-stressed bolt applied to restrain foundation vibration are verified effectively.

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Periodical:

Advanced Materials Research (Volume 842)

Pages:

607-611

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.842.607

Citation:

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Online since:

November 2013

Authors:

Jian Jun Liu, Ren Cheng Xiao*, Fei Yue Xie, Wei Liu

Keywords:

Ambient Excitation, Dynamic Stiffness, Modal Parameter Identification, Reinforcement, Stone Cutting Machine Foundation

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