標題: Targeted suppression of vibration in deep hole drilling using magneto-rheological fluid damper
作者: Kong, Lingfei
Chin, Jih-Hua
Li, Yan
Lu, Yanjun
Li, Pengyang
機械工程學系
Department of Mechanical Engineering
關鍵字: Deep hole drilling;MR fluid vibration damper;Drilling tools system;Vibration suppression
公開日期: 1-Nov-2014
摘要: Under the concept of precision or targeted vibration suppression, a novel approach is developed to reduce the vibration of drilling tool system in deep-hole drilling process. The concept is to suppress the dominant vibration upon its emergence by variable damping or to force the harmful vibration morph into less harmful by different damper position. A magneto-rheological (MR) fluid damper is designed with adjustable damping capability to counteract emerging vibration. A series of experimental investigations are carried out on the BTA deep hole drilling process. The experimental results show that the adjustable MR damping brings down the vibration in all applications with different suppression effect. A relative optimal suppression can always be found. The suppressed vibration experiences a frequency shift which sheds light on the possible avoidance of matching of unwelcome frequency. Different damper locations have different but consistent suppression results which foresee a possibility of forcing the mode of vibration into less harmful one. A potential precision or targeted suppression of vibration upon its emergence is thus possible. (C) 2014 Elsevier B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jmatprotec.2014.05.029
http://hdl.handle.net/11536/25019
ISSN: 0924-0136
DOI: 10.1016/j.jmatprotec.2014.05.029
期刊: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume: 214
Issue: 11
起始頁: 2617
結束頁: 2626
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