期刊
JOURNAL OF SOUND AND VIBRATION
卷 517, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jsv.2021.116538
关键词
Chatter; Tuned mass damper; Piecewise-smooth; Impact; Fly-over; Continuation
资金
- Hungarian Government [NKFIH: 2019-2.1.2-NEMZ-2019-00005]
- NKFIH [FK 124361]
This paper investigates the impact of displacement constraints on the attenuation performance of tuned mass dampers (TMDs) in boring and turning applications. Through time domain simulations and hybrid periodic orbit continuation, it is found that rigid body collisions can significantly hinder TMD damping performance and lead to resonance problems or machine tool chatter.
This paper investigates the effect of displacement constraints on the attenuation performance of tuned mass dampers (TMDs) used in boring and turning applications. A simplified piecewise-smooth mechanical model is investigated through time domain simulations and hybrid periodic orbit continuation, first under harmonic excitation, then under regenerative cutting load. A quasi-frequency response function is derived for impacting TMDs through composition of different families of period-1 orbits, then an acceptability map for turning is formulated based on the appearance of cutting-edge contact-loss and fly-over events. The bi-stable domain boundaries are determined through two parameter continuation of contact-loss grazing events. It is shown that in both cases arising rigid body collisions can significantly hinder TMD damping performance and lead to resonance problems or machine tool chatter.
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