Results 261 to 270 of about 44,195 (310)
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Spindle Speed Variation for the Suppression of Regenerative Chatter

Journal of Nonlinear Science, 2003
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Sri Namachchivaya, N., Beddini, R.
openaire   +1 more source

Stability Analysis of Machining with Spindle Speed Variation

Advanced Materials Research, 2011
In this paper the chatter stability of turning and full-immersion milling operations with spindle speed variation is studied. We present a method to calculate the stability lobes in the limit of very low and very high frequencies of the delay modulation. These approximations help to classify the results of numerically exact methods, as for example semi-
Andreas Otto   +3 more
openaire   +1 more source

Spindle speed variation method for regenerative machining chatter control

International Journal of Nanomanufacturing, 2009
Among machining chatter control methods, spindle speed variation (SSV) method is certified as a feasible and effective way: machining chatter can be suppressed by continuously and periodically fluctuating the spindle speed of the machine tool. This paper presents a systematic stability analysis of SSV method for machining chatter suppression based on a
Haiyan H. Zhang, Mark J. Jackson, Jun Ni
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Programming spindle speed variation for machine tool chatter suppression

International Journal of Machine Tools and Manufacture, 2003
Abstract This paper presents a novel method for programming spindle speed variation for machine tool chatter suppression. This method is based on varying the spindle speed for minimum energy input by the cutting process. The work done by the cutting force during sinusoidal spindle speed variation S 3 V is solved numerically over a wide range of ...
Emad Al-Regib, Jun Ni, Soo-Hun Lee
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Machine-Tool Chatter Suppression by Multi-Level Random Spindle Speed Variation

Manufacturing Science and Engineering, 1999
Abstract This paper presents a new method for varying the spindle speed to suppress chatter in machining. The spindle speed is varied in pseudo-random fashion within the bandwidth of the spindle system. Both implementation issues and spindle system responses to such signals are investigated.
Alpay Yilmaz, Emad AL-Regib, Jun Ni
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Active Suppression of Chatter by Programed Variation of Spindle Speed

Journal of the Japan Society of Precision Engineering, 1975
Among various types of chatters encountered in metal cutting and grinding operations, the regenerative-type self-excited chatter is known to limit the maximum depth of cut possible to be taken in roughing operations. The theoretical analysis of the regenerative-type selfexcited chatter suggests that the spindle speed variation could control the amount ...
Tadashi TAKEMURA   +2 more
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Application of spindle speed variation for chatter suppression in turning

CIRP Journal of Manufacturing Science and Technology, 2013
In the present paper the chatter instability of variable speed machining is studied. Though, there exist numerical methods for the computation of the stability lobes for variable speed machining, especially in turning processes the potential of an active spindle speed variation for chatter suppression is mostly unexploited. In the case of a slowly time-
Andreas Otto, Günter Radons
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Stability analysis on spindle speed variation method for machining chatter suppression

International Journal of Machining and Machinability of Materials, 2009
This paper presents a systematic stability analysis of spindle speed variation (SSV) method for machining chatter suppression based on a machining chatter model of non-linear delay differential equation. The theoretical results are verified by results of numerical simulations and experiments. Some important results are achieved: the stability increment
Haiyan Zhang, Mark J. Jackson, Jun Ni
openaire   +1 more source

Spindle speed variation technique in turning operations: Modeling and real implementation

Journal of Sound and Vibration, 2016
Abstract Chatter is still one of the most challenging problems in machining vibrations. Researchers have focused their efforts to prevent, avoid or reduce chatter vibrations by introducing more accurate predictive physical methods. Among them, the techniques based on varying the rotational speed of the spindle (or SSV, Spindle Speed ​​Variation) have
G. Urbikain   +3 more
openaire   +1 more source

Model-Free Adaptive Sliding Mode Control-Based Active Chatter Suppression by Spindle Speed Variation

Journal of Dynamic Systems, Measurement, and Control, 2022
Abstract This paper presents a novel model-free adaptive sliding mode control (MFA-SMC) algorithm, which is employed to actively adjust the amplitude and frequency of spindle speed variation (SSV) for chatter suppression in turning. The SSV technique is effective for mitigating regenerative chatter, which however is not widely applied ...
Longyang Ding, Yuxin Sun, Zhenhua Xiong
openaire   +1 more source

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