Stiffness Effect on Low-Frequency Stick-Slip Motion Generated on a Simple Caliper-Slider Experimental Model

Zahrul Fuadi; Koshi Adachi

doi:10.4028/www.scientific.net/AMM.758.57

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 758Stiffness Effect on Low-Frequency Stick-Slip...

Stiffness Effect on Low-Frequency Stick-Slip Motion Generated on a Simple Caliper-Slider Experimental Model

Abstract:

This paper discusses the occurrence and non occurrence of low-frequency stick-slip motion on a simple caliper-slider experimental model. The analysis focused on the relationship between stiffness, i.e. contact stiffness and structure’s stiffness, and the generation of stick-slip motion. The occurrence of stick-slip motion is determined by analyzing the frequency characteristic of resulted vibration acceleration at the beginning of sliding which is resulted from a simultaneous application of force in tangential direction and slow release of force in normal direction. The results show that the occurrence and non occurrence of stick-slip motion can be classified into three regions according to the parameter of stiffness ratio, i.e. non occurrence region, mixed region, and occurrence region. The stiffness ratio S_r, the ratio of contact stiffness K_c to structure’s stiffness K_s, of 40 is found to be critical for the low-frequency stick-slip generation in this experimental model.

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Periodical:

Applied Mechanics and Materials (Volume 758)

Pages:

57-62

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.758.57

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Online since:

April 2015

Authors:

Zahrul Fuadi*, Koshi Adachi

Keywords:

Contact Stiffness, Stick-Slip, Stiffness Ratio

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