长江科学院院报 ›› 2012, Vol. 29 ›› Issue (3): 87-90.

• 全国土工离心模拟技术学术交流会专栏 • 上一篇    下一篇

定点高速闪光摄影技术在土工离心机中的应用

王新伦 1,赵文凯 1,林  明 1,程永辉 2   

  1. 1.中国工程物理研究院 结构力学研究所,四川 绵阳  621900;2.长江科学院 水利部岩土力学与工程重点实验室,武汉  430010
  • 收稿日期:2011-07-20 出版日期:2012-03-01 发布日期:2012-05-15
  • 作者简介:王新伦(1969-),男,山东郓城人,高级工程师,主要从事离心机等非标准设备电气系统研制

Fixed-spot High-speed Flash Photography Technique Applied to Geotechnical Centrifuge

WANG Xin-lun 1,ZHAO Wen-kai 1,LIN Ming 1,CHENG Yong-hui 2   

  1. 1.Institute of Structure Mechanics, China Academy of Engineering Physics, Mianyang  621900,China;2.Key Laboratory of Geotechnical Mechanics and Engineering of the Ministry of Water Resources, Yangtze River Scientific Research Institute, Wuhan  430010,China
  • Received:2011-07-20 Online:2012-03-01 Published:2012-05-15

摘要: 在土工离心模型试验中,摄影是一种重要的测试手段,其具有非接触、直观、测试对象为整个压缩面而非点等优点,但如何拍摄高速旋转的土工离心模型完整、清晰图像一直是一个技术难点,通过定点高速闪光摄影技术较好地解决了这一问题。介绍了定点高速闪光摄影的原理,闪光时间、闪光能量的确定,定点高速闪光摄影同步控制以及实际应用的结果。

关键词: 闪光摄影, 闪光时间, 闪光能量, 同步控制

Abstract: Photography is an important approach in geotechnical centrifuge model tests. It is intuitive, noncontact, and takes compression plane instead of points as the test object. It’s a technical difficulty to get clear and complete photos of geotechnical centrifuge model while it’s rotating with high speed. The authors introduced the principle of applying fixed-spot high-speed flash photography in geotechnical centrifuge. The determination of flash duration and power, the time-series synchronous control as well as the result of applying this photography system to geotechnical centrifuge were also presented.

Key words: flash photography, flash duration, flash power, synchronous control

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