长江科学院院报 ›› 2014, Vol. 31 ›› Issue (1): 77-80.DOI: 10.3969/j.issn.1001-5485.2014.01.0162014,31(01):77-80

• 仪器设备与测试技术 • 上一篇    下一篇

一种新型平衡自调节系统在土工离心机上的应用

刘显军,王军,李思忠,杜寿兵,刘小刚   

  1. 中国工程物理研究院总体工程研究所,四川绵阳621900
  • 收稿日期:2011-04-30 修回日期:2014-01-06 出版日期:2014-01-01 发布日期:2014-01-06
  • 作者简介:刘显军(1985-),男,湖北恩施人,工程师,主要从事土工离心机及离心模型试验设备的研究,(电话)0816-2481448(电子信箱)545172357@qq.com。

Development of a Novel Self-adjusting Balance System Applied to Geotechnical Centrifuge

LIU Xian-jun,WANG Jun,LI Si-zhong,DU Shou-bing,LIU Xiao-gang   

  1. Institute of System Engineering,China Academy of Engineering Physics,Mianyang 621900,China
  • Received:2011-04-30 Revised:2014-01-06 Online:2014-01-01 Published:2014-01-06

摘要: 为了实现土工离心机运转以后的实时配平,减小离心机运转过程中的不平衡力,研制了一套平衡自调节系统。该系统构建了一套由电磁阀、传感器、PLC控制器组成的反馈控制系统,通过它向安装在配重端的水箱中受控注水,来实时调节工作端载荷变化引起的不平衡。将该系统应用到某土工离心机上,开展了离心机升速和负载增大工况下的自平衡调节试验,实现了离心机的实时配平。相对传统的液压缸或电机驱动配重块的平衡调节机构,该注水配平系统结构更简单、平衡调节范围更宽。

关键词: 土工离心机, 注水配平, 实时, 平衡自调节, 反馈控制

Abstract: A self-adjusting balance system is developed to achieve real-time trim and reduce unbalanced force when geotechnical centrifuge is running. In this system,a feedback control system which consists of electromagnetic valves,sensors,and a PLC is constructed to controllably inject water into a tank fixed in the counterweight part,and hence adjusting the unbalance induced by changes of load in the work part. This system was applied to a geotechnical centrifuge to conduct self-adjusting balance tests,and finally achieved real-time trim when centri-fuge’s speed or load in the work part increases. Compared with traditional adjusting balance mechanism which drives a counterweight block by a hydraulic cylinder or a motor,this system has a simpler structure and a wider range of adjusting balance.

Key words: geotechnical centrifuge, trim by water injection, real-time, self-adjusting balance, feedback control

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