無段変速機を用いたある巻取制御系の解析とその設計への応用

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書誌事項

タイトル別名
  • Analysis and Synthesis of a Control System for Take-up Devices making Use of a Mechanical Variable Speed Drive
  • ムダン ヘンソクキ オ モチイタ アル マキトリ セイギョケイ ノ カイセキ
  • Part 2 : Synthesis of a-Control System for Take-up Devices
  • (第2報) 巻取制御系の設計方法

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抄録

In the previous paper, the dynamic characteristics of a control system for take-up devices using a mechanical variable speed drive, was analysed.<BR>In this paper, the method synthesizing the control system mentioned above, has been established, both keeping the variation of take-up tension of a running material lower and making the response faster.<BR>Followings are the conclusions obtained here : <BR>1) It is desired to select a loop-gain ratio A/Aer =1 and a loop-gain B larger, in order to keep the variation of the dancer roller's displacement lower and keep the settling time shorter, for the step change of the running speed of material. Moreover, the time constants of two first order lag elements, the width of a dead zone element, and the width of two back-lash elements, must be small. Here, A is a loop-gain of servomechanism, B is look-gain of the control system, and Acr is the loop-gain A under the condition of critical damping.<BR>2) For a random disturbance due to the irregularity of a running material along the longitudinal direction, the design procedure to keep the variance of the displacement of a dancer roller lower, is similar to 1).<BR>3) The settling position of a dancer roller could be kept at the set-position, bycharging the SCR-amplifier with a voltage designed to be inversely proportional to the radius of the take-up package.<BR>4) The increase of the loop-gain B caused by the increase of the radius of a package can be caneclled, by changing the gain k10 in inversely proportional to the radius of a package. Where k10 is the half of a gain converting the displacement of a dancer roller to voltage.

収録刊行物

  • 繊維機械学会誌

    繊維機械学会誌 28 (2), T25-T35, 1975

    一般社団法人 日本繊維機械学会

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