| 应变片贴片位置对轮轨横向水平力测试精度的影响 |
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| 引用本文： | 张晚晴,陈睿颖,陈泽生,李新国.应变片贴片位置对轮轨横向水平力测试精度的影响[J].城市轨道交通研究,2012,15(3):58-60,68. |
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| 作者姓名： | 张晚晴 陈睿颖 陈泽生 李新国 |
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| 作者单位： | 1. 同济大学交通运输工程学院,201804,上海
2. 同济大学城市轨道与铁道工程系,201804,上海 |
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| 摘 要： | 采用应变片测试技术中的剪力法进行轮轨横向水平力测试.结合加载条件等因素,通过试验研究应变片的粘贴位置对测试精度的影响,为提高横向水平力测试精度提供依据.经过理论分析,并进行现场实测,通过改变应变片在钢轨轨底上缘的贴片位置,建立轮轨横向水平力测试精度的评价方式,探索非横向水平力因素对测试的影响规律.最终根据实测数据分析得...
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| 关 键 词： | 轮轨横向水平力 应变片 测试精度 贴片位置 |
Influence of Strain Gauge Site on Measure Precision of Wheel and Rail Horizontal Force |
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| Zhang Wanqing
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Chen Ruiying
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Chen Zesheng
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Li Xinguo.Influence of Strain Gauge Site on Measure Precision of Wheel and Rail Horizontal Force[J].Urban Mass Transit,2012,15(3):58-60,68. |
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| Authors: | Zhang Wanqing Chen Ruiying Chen Zesheng Li Xinguo |
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| Institution: | School of Transportation Engineering,Tongji University,201804,Shanghai,China |
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| Abstract: | Strain gauge testing is widely applied in railway scene to measure the wheel and railway horizontal force.By taking the load condition into consideration,the influence of different sites of strain gauge on the testing precision is introduced,the figures from practical test are analyzed to seek the best site and provide a basis for improving the testing precision.In experiential tests,by changing the sites of strain gauge on top of the rail base,an evaluation system of testing precision is established and the regulation of influences is obtained.Based on the above analysis,a conclusion is draw that the best site of strain gauge is from 1.5 to 2.5 cm between the bottom and the top of the rail track. |
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| Keywords: | rail transverse horizontal forces strain gauge measure precision the site of the strain gauge |
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