| 裸光纤光栅及光纤力锤在大桥模型试验中的应用 |
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| 引用本文： | 詹胜,谭华耀,徐幼麟,区浩然,张笑华. 裸光纤光栅及光纤力锤在大桥模型试验中的应用[J]. 工程力学, 2011, 0(3): 103-108 |
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| 作者姓名： | 詹胜 谭华耀 徐幼麟 区浩然 张笑华 |
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| 作者单位： | 香港理工大学土木及结构工程学系;香港理工大学电机工程学系; |
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| 基金项目： | Research Funds For Recently-Promoted Chair Professors,The Hong Kong Polytechnic University(1-BBZJ); Nichae Area Grant,The Hong Kong Polytechnic University(1-BB68) |
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| 摘 要： | 经缩尺比例后,大跨度悬索桥模型的构件一般变得很细小,尺寸大的传感器无法或不宜安装在结构模型上,尤其是需作动力试验的模型,附加大量传感器及电缆线的质量、刚度和阻尼会严重影响试验的结果.为解决此问题,该文采用细柔的裸光纤光栅测量直径仅0.5mm细钢丝吊索及其他细小构件的应变.为获得光纤所测应变的传递函数,研制了激振用的光纤...
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| 关 键 词： | 裸光纤光栅 光纤力锤 模型试验 传递函数 应变模态 |
APPLICATIONS OF NAKED OPTICAL FIBER BRAGG GRATING AND FIBER OPTIC IMPACT HAMMER IN BRIDGE MODEL TEST |
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| ZHAN Sheng,TAM Hwa-yaw,XU You-lin,AU Ho-yin,ZHANG Xiao-hua. APPLICATIONS OF NAKED OPTICAL FIBER BRAGG GRATING AND FIBER OPTIC IMPACT HAMMER IN BRIDGE MODEL TEST[J]. Engineering Mechanics, 2011, 0(3): 103-108 |
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| Authors: | ZHAN Sheng TAM Hwa-yaw XU You-lin AU Ho-yin ZHANG Xiao-hua |
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| Affiliation: | *ZHAN Sheng1,TAM Hwa-yaw2,XU You-lin1,AU Ho-yin2,ZHANG Xiao-hua1(1.Department of Civil and Structural Engineering,The Hong Kong Polytechnic University,Hong Kong,China,2.Department of Electric Engineering,China) |
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| Abstract: | The members of a long span suspension bridge model are often very small due to scaled size reduction.The large sensors are thus not allowed to be installed on the model in consideration that the additional mass,stiffness and damping will affect the test results,especially in dynamic tests.In this experimental investigation,the naked optical fiber Bragg grating sensors were used to measure the strain of hanger ropes of 0.5 mm diameter and other small members.In order to obtain the transfer function of strain... |
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| Keywords: | naked optical fiber grating fiber optic impact hammer model test transfer function strain mode. |
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