高速移動体の電磁力を利用した非接触急停止機構の開発(第2報) : 停止機構の考察とマイクロコンピュータによる停止制御

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This paper describes the analytical results and comparison between experiments on the noncontact sudden stopping mechanism of high speed movement by electromagnetic impulsive force. As reported on the 1st report, stopping device of which mechanism simply consists of sliding ram and coils is successfully developed. An electromagnetic impulsive force produced interactively between ram and coil could reduce the ram velocity. Selecting the electric conditions adequately, the ram could stop in a very short time and displacement without any contact. As for the estimation of electromagnetic force, some of theories has been suggested, in this paper the simplified circuit theory which including the influence of secondary circuit (conductive plate of the ram) on the impedance of the primary circuit (coil itself) is taken. The velocity and displacement of the ram can be numerically calculated based on above theory and the results could show the moving mode of the ram actually observed, and the final velocity fairly agrees with the experiments. A stopping control system with the aid of a micro-computer is also developed. This system is made up of sensor of ram motion and data processing circuit. An adequate position from which discharge begins for stopping ram can be calculated based on measured real time data. As the results of experiments performed, the ram stops independent of initial ram velocity within a range of 1 m/s-2 m/s.
公益社団法人精密工学会の論文
1989-10-05

高速移動体の電磁力を利用した非接触急停止機構の開発(第2報) : 停止機構の考察とマイクロコンピュータによる停止制御

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