Improvement of Stability Limit by Spindle Speed Variation
نویسندگان
چکیده
منابع مشابه
Perturbation Analysis of Spindle Speed Variation in Machine Tool Chatter
Spindle speed variation has been shown to be an effective method for chatter control. In this paper, a single-degree-of-freedom regenerative type chatter equation is treated using perturbation methods. Rather than using the time coordinate, the angle of revolution is taken as the independent coordinate for maintaining a constant delay in the equations. The spindle speed is taken to be harmonica...
متن کاملApplication of Spindle Speed Variation for Chatter Suppression in Turning
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-varying spindle speed, which is practicabl...
متن کاملMachine Tool Chatter Suppression Using Spindle Speed Variation
First part of the thesis deals with the dynamics and stability of nonlinear delay gyroscopic systems with periodically varying delay. The aim is to demonstrate that greater depths of cut may be achieved in a boring process (2 DOF) when the speed of the spindle is modulated sinusoidally instead of being kept constant. Since the variation of spindle speed is small and independent of the tool moti...
متن کاملIncrease of Sliding Mode Controller Stability Limit
An important consideration in control issues is control of nonlinear systems. Sliding control is among those nonlinear controllers that can control the system desirably in the presence of unstructured uncertainties of carelessness in specifying parameters of the system. In sliding control, also called Variable Structure Control, the main objectives of the controller 
are achieved by introduc...
متن کاملIncrease of Sliding Mode Controller Stability Limit
An important consideration in control issues is control of nonlinear systems. Sliding control is among those nonlinear controllers that can control the system desirably in the presence of unstructured uncertainties of carelessness in specifying parameters of the system. In sliding control, also called Variable Structure Control, the main objectives of the controller are achieved by introducin...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Precision Engineering
سال: 1977
ISSN: 0374-3543
DOI: 10.2493/jjspe1933.43.1204