| 一种多点拖车式落锤弯沉仪设计 |
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| 引用本文： | 印朝辉,王兵,梁伟伟,刘晓旭,高翌春.一种多点拖车式落锤弯沉仪设计[J].宇航计测技术,2016,36(4):44. |
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| 作者姓名： | 印朝辉 王兵 梁伟伟 刘晓旭 高翌春 |
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| 作者单位： | 1、北京航天计量测试技术研究所,北京 100076 |
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| 摘 要： | 介绍一种多点拖车式落锤弯沉仪（简称FWD）。阐述其系统构成、工作原理及关键技术。通过性能试验表明： 荷载与弯沉的重复性均小于2%，性能稳定可靠，满足技术要求；在相同的测试条件下，FWD与贝克曼梁两者之间具有良好的线性相关性，可以通过公式进行转化，为ＦＷＤ在路面检测中的普及应用提供了依据。
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| 关 键 词： | FWD 贝克曼梁 弯沉检测 路面检测 弯沉盆 |
Design of the Multi-point Trailer Falling Weight Deflectometer |
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| YIN Zhao-hui,WANG Bing,LIANG Wei-wei,LIU Xiao-xu,GAO Yi-chun.Design of the Multi-point Trailer Falling Weight Deflectometer[J].Journal of Astronautic Metrology and Measurement,2016,36(4):44. |
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| Authors: | YIN Zhao-hui WANG Bing LIANG Wei-wei LIU Xiao-xu GAO Yi-chun |
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| Institution: | 1、Beijing Aerospace Insititute for Metrology and Measurement Technology, Beijing 100076 |
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| Abstract: | A type of multi-point trailer falling weight deflectometer(FWD) was introduced. The system structure, operational principles and key technologies was described. The performance test results show that the load and deflection measurement repeatability is less than 2%. It has stable and reliable performance to meet the technical requirements. The deflection test data of FWD and Beckman Beam have good linear dependence relation under the same test conditions, and the formula for deflection test data conversion can be found. A foundation for spread application of FWD pavement test technique was provided in highway engineering. |
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| Keywords: | FWD Beckman Beam Deflection test Pavement test Deflection basin |
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