Effect of Contact Stiffness on Creep-Groan Occurrence on a Simple Caliper-Slider Experimental Model |
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Authors: | Zahrul Fuadi Koshi Adachi Hideaki Ikeda Hisataka Naito Koji Kato |
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Affiliation: | (1) Tribology Laboratory, Tohoku University, 6-6-01 Aramaki-aza Aoba, Sendai 980-8579, Japan;(2) Akebono Brake Industry Co., Ltd., Hanyu, Japan;(3) College of Engineering, Nihon University, Koriyama, Japan |
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Abstract: | In this paper, a fundamental mechanism for creep-groan generation is investigated by adopting a simple yet effective caliper-slider
experimental model. Contact condition, which is a function of three parameters, namely normal force, contact roughness, and
material combination, is connected with the creep-groan phenomenon in terms of contact stiffness. Creep-groan generation is
determined by analyzing the frequency characteristic of the generated vibration acceleration when the sliding commences due
to a simultaneous application and release of force in the tangential and normal directions, respectively. As per the obtained
results, creep-groan occurrence or absence in the employed experimental model may be classified into three regions based upon
the value of the contact stiffness, i.e., occurrence, non-occurrence, and mixed regions. The results also indicate that creep-groan
occurrence in this caliper-slider experimental model can be avoided by controlling the value of contact stiffness in an effective
manner. |
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Keywords: | Stick-slip Creep groan Contact stiffness |
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