A new mechanism for boring of noncircular hole and its evaluation via simulation

2009 International Conference on Information and Automation Pub Date : 2009-06-22 DOI:10.1109/ICINFA.2009.5205066

Z. Kai, Liu Shiping, Yang Quan, Tang Niuming

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引用次数: 1

Abstract

A revolving magnetic mechanism composed of a stator and rotor has been designed to supply contactless actuation force to boring bar for boring of non-circular hole. While the currents in the pole-pairs coils on the stator change, the actuation force would change correspondingly and drive the rotor to take a wanted micro displacement radially. With the linearization of the actuation force, linear relationship between the control current and the actuation force has been established. With the simulations of the magnetic field parameters, the relationship between the actuation current (bias current plus control current) and magnetic force has been present visually. The static simulations show that the magnetic force between the stator and rotor is little while there are only bias currents applied in the pole-pairs coils. The influences of bias currents to actuation forces have been simulated and calculated theoretically, and nonlinear phenomena emerged have been analyzed. The design principles for bias current in magnetic actuation mechanism have been put forward.

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一种新的非圆孔镗孔机理及其仿真评价

设计了一种由定子和转子组成的旋转磁力机构，为镗杆镗削非圆孔提供非接触式作动力。当定子上的极对线圈电流发生变化时，作动力也会发生相应的变化，从而驱动转子径向产生所需的微位移。通过对作动力的线性化，建立了控制电流与作动力之间的线性关系。通过对磁场参数的仿真，直观地得到了驱动电流(偏置电流+控制电流)与磁力的关系。静态仿真结果表明，在磁极对线圈中只施加偏置电流的情况下，定子和转子之间的磁力很小。对偏置电流对作动力的影响进行了理论模拟和计算，并对产生的非线性现象进行了分析。提出了磁致动机构中偏置电流的设计原则。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2009 International Conference on Information and Automation

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