非線形を含む流量制御系の解析例

• 大島 康次郎

  東京大学生産技術研究所

• 黒崎 和彦

  松下通信工業株式会社

• 岸田 元規

  倉敷レイヨン株式会社

書誌事項

タイトル別名

• An Analysis of a Flow Control System Including Nonlinearities

抄録

In pneumatic flow control systems it occasionally occures sustained oscillation when some larger disturbance is added. This phenomenon is attributed to the effects of nonlinear elements in the system.<BR>This article analizes a typical example of flow control system (Fig. 1) containing 3 effective nonlinearities as follows:<BR>(1) Control valve speed saturation<BR>(2) Control valve hysteresis<BR>(3) Nonlinearity of flow system (from control valve position to pressure difference in oriffice) Of these three, (1)&(2) are put together to total describing function and (3) is treated as gain change of differential pressure converter output to control valve displacement (Fig. 4).<BR>The amplitude and frequency of limit cycle can be estimated by plotting linear transfer function and nonlinear describing function on the s-plane.<BR>The results of analysis are compared with measured values (Fig.15) and the effects of nonlinear elements are discussed.

収録刊行物

• 自動制御

  自動制御 7 (1), 13-19, 1960

  公益社団法人 計測自動制御学会

詳細情報

• CRID: 1390001205359674752
• NII論文ID: 130003765345
• DOI: 10.11499/sicejl1954.7.13
• ISSN: 18838162
• ISSN: 04477235
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可