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学者姓名:郑振
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Abstract :
For bridges with high automobile traffic, a large amount of vibration is generated daily due to cars driving over imperfectly level roads, and a vibration energy harvester can convert this energy into electrical energy, thus providing energy for devices such as bridge health sensors. However, the traditional single degree of freedom magnetic levitation vibration energy harvester (SMEH) has the disadvantage of low output power, so this research designs an improved dual degree of freedom magnetic levitation vibration energy harvester (DMEH), and a mathematical model of the energy harvester is built for simulation tests and an optimization model based on NSGA-II algorithm is developed for optimizing the structural parameters of the energy harvester. The experimental results show that the maximum total output power of DMEH and SMEH on CSSBB1, CSSBB2 and CSSBB3 are 48.7 mW, 36.8 mW, 25.4 mW and 27.2 mW, 21.5 mW, 14.9 mW, respectively, and the minimum total magnet volumes of both on CSSBB1, CSSBB2 and CSSBB3 are 268 cm3, 132 cm3, 219 cm3, 214 cm3, 86.2 cm3, 156 cm3. Based on the experimental data, it is found that the maximum output power of the optimal solution of DMEH is larger than that of SMEH for the selected simply supported girder bridge project, and the volume of the former is also larger than that of the latter, but the degree of increase can still be adapted to the application environment. The research results have some reference significance for improving the energy harvesting efficiency of bridge vibration energy harvesters.
Keyword :
Bridge vibration Bridge vibration Energy harvesters Energy harvesters Magnets Magnets Output power Output power
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GB/T 7714 | Xie, Dongming , Zheng, Zhen , Zhu, Yaoliang . Design of a two-degree-of-freedom magnetic levitation vibration energy harvester for bridge vibration response analysis [J]. | HELIYON , 2024 , 10 (5) . |
MLA | Xie, Dongming 等. "Design of a two-degree-of-freedom magnetic levitation vibration energy harvester for bridge vibration response analysis" . | HELIYON 10 . 5 (2024) . |
APA | Xie, Dongming , Zheng, Zhen , Zhu, Yaoliang . Design of a two-degree-of-freedom magnetic levitation vibration energy harvester for bridge vibration response analysis . | HELIYON , 2024 , 10 (5) . |
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本文以古田西瓜州大桥--高墩箱形拱桥为工程背景,通过加固前后的合理试验,并结合修正的有模元模型进行结构分析,对加固前后的静力及动力特性进行对比分析,主要从外观、挠度、应变、自振频率、稳定性及叠合拱的整体工作性能等几个方面对加固效果综合分析.
Keyword :
加固效果分析 加固效果分析 增大截面法 增大截面法 整体工作性能 整体工作性能
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GB/T 7714 | 张超 , 郑振 . 增大截面法加固箱形拱桥效果分析 [J]. | 福建建筑 , 2008 , (2) : 39-41 . |
MLA | 张超 等. "增大截面法加固箱形拱桥效果分析" . | 福建建筑 2 (2008) : 39-41 . |
APA | 张超 , 郑振 . 增大截面法加固箱形拱桥效果分析 . | 福建建筑 , 2008 , (2) , 39-41 . |
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通过邵武越王大桥的静载试验,并综合有限元的计算结果,评估该桥实际的承载能力.根据分析结果,进一步在理论上论证了特载过桥的可行性.
Keyword :
特大荷载 特大荷载 石拱桥 石拱桥 静载试验 静载试验
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GB/T 7714 | 郑宾 , 郑振 , 林友勤 . 福建邵武越王大桥特载通行问题分析和静载试验 [J]. | 福建建筑 , 2007 , (1) : 17-18,23 . |
MLA | 郑宾 等. "福建邵武越王大桥特载通行问题分析和静载试验" . | 福建建筑 1 (2007) : 17-18,23 . |
APA | 郑宾 , 郑振 , 林友勤 . 福建邵武越王大桥特载通行问题分析和静载试验 . | 福建建筑 , 2007 , (1) , 17-18,23 . |
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Abstract :
双层桥面飞雁式钢管-钢管混凝土复合拱桥为新型复合桥梁,衡阳衡酃路湘江特大桥主桥是目前世界上第一座采用该结构的桥梁.本文以该大桥为工程背景,建立空间有限元模型,进行实桥自振特性分析,研究该类桥型的动力特性.
Keyword :
双层桥面 双层桥面 复合拱桥 复合拱桥 自振特性 自振特性 钢管-钢管混凝土 钢管-钢管混凝土
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GB/T 7714 | 陈永健 , 郑振 , 潘桥文 . 双层桥面飞雁式钢管-钢管混凝土复合拱桥动力分析 [J]. | 福建建筑 , 2007 , (12) : 98-100 . |
MLA | 陈永健 等. "双层桥面飞雁式钢管-钢管混凝土复合拱桥动力分析" . | 福建建筑 12 (2007) : 98-100 . |
APA | 陈永健 , 郑振 , 潘桥文 . 双层桥面飞雁式钢管-钢管混凝土复合拱桥动力分析 . | 福建建筑 , 2007 , (12) , 98-100 . |
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西瓜洲大桥在运营十几年后整桥的结构可靠度出现了下降的情况,本文在调查分析该桥实际情况后,根据现有国内外加固技术结合该桥进行加固方案的比选,得出该桥的最适合的加固方法.
Keyword :
加固 加固 拱桥 拱桥 箱型拱桥 箱型拱桥
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GB/T 7714 | 高云浩 , 郑振 , 陈忠辉 . 旧西瓜洲大桥现状与加固方案比选 [J]. | 福建建筑 , 2007 , (1) : 14-16 . |
MLA | 高云浩 等. "旧西瓜洲大桥现状与加固方案比选" . | 福建建筑 1 (2007) : 14-16 . |
APA | 高云浩 , 郑振 , 陈忠辉 . 旧西瓜洲大桥现状与加固方案比选 . | 福建建筑 , 2007 , (1) , 14-16 . |
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本文运用大型有限元软件ANSYS,同时采用三种分析极限承载力的方法(线性屈曲法,几何非线性法与同时考虑几何非线性和材料非线性法)对设计中的钢管桁肋式拱桥——湘江特大桥主跨拱桥进行极限承载力计算分析.
Keyword :
几何非线性 几何非线性 材料非线性 材料非线性 极限承载力 极限承载力 钢管桁肋式拱桥 钢管桁肋式拱桥 非线性有限元 非线性有限元
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GB/T 7714 | 陈忠辉 , 郑振 , 潘桥文 . 湖南湘江特大桥极限承载力分析 [J]. | 福建交通科技 , 2007 , (1) : 21-24 . |
MLA | 陈忠辉 等. "湖南湘江特大桥极限承载力分析" . | 福建交通科技 1 (2007) : 21-24 . |
APA | 陈忠辉 , 郑振 , 潘桥文 . 湖南湘江特大桥极限承载力分析 . | 福建交通科技 , 2007 , (1) , 21-24 . |
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Stability of high lithological slope was is of complex problems in highway construction in mountainous area and hilly country, which is a complicated system engineering problem, and can not be solved by simple mathematical and mechanical methods. On the basis of geological and environmental conditions, comprehensive analysis and evaluation with integration mode should be the best method used for its research and solution. Stereographic projection method, Sarma method and Finite-Element Method (FEM) were used to comprehensively evaluate and integratively analyze some high lithological slopes of Zhangzhou-Longyan Expressway, which procured ideal conclusions and were accepted and adopted by design and execution departments. This project practice for several years safe operation after completion shows that the comprehensive evaluation and integrated analysis method is successful and effective, and it should be considered as an important way of stability evaluation of high lithological slope of expressway.
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GB/T 7714 | Yao, Huan , Zheng, Zhen , Jian, Wen-Bin et al. Comprehensive evaluation and research on stability of high lithological slope of expressway [J]. | Chinese Journal of Geotechnical Engineering , 2006 , 28 (5) : 558-563 . |
MLA | Yao, Huan et al. "Comprehensive evaluation and research on stability of high lithological slope of expressway" . | Chinese Journal of Geotechnical Engineering 28 . 5 (2006) : 558-563 . |
APA | Yao, Huan , Zheng, Zhen , Jian, Wen-Bin , Shen, Hua , Qin, Gang . Comprehensive evaluation and research on stability of high lithological slope of expressway . | Chinese Journal of Geotechnical Engineering , 2006 , 28 (5) , 558-563 . |
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从边坡稳定和地基附加应力两方面分析了闽都大庄园场地填砂对福州洪塘大桥西引桥桩基的影响问题,结果表明,场地填方对桥梁桩基影响很小,不会危及桥梁的使用与安全。
Keyword :
场地填方 场地填方 桥梁桩基 桥梁桩基 桩基附加应(内)力计算 桩基附加应(内)力计算 边坡稳定分析 边坡稳定分析
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GB/T 7714 | 李霞 , 郑振 . 场地填方对桥梁桩基影响分析 [J]. | 福建建材 , 2006 , (05) : 30-31 . |
MLA | 李霞 et al. "场地填方对桥梁桩基影响分析" . | 福建建材 05 (2006) : 30-31 . |
APA | 李霞 , 郑振 . 场地填方对桥梁桩基影响分析 . | 福建建材 , 2006 , (05) , 30-31 . |
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岩质高边坡稳定性评价是一复杂的系统工程问题.该问题的分析、研究、评价和设计是不能用纯粹和单一的数学方法和力学方法加以计算论证的.在充分分析岩质高边坡赋存的地质背景和环境条件的基础上,采用综合分析评价、综合集成的方法是研究分析和解决该问题的最佳方法.采用赤平极射投影法、Sarma法和有限单元(FEM)法等,对某高速公路岩质高边坡工程实例进行综合评价和集成分析,获得的综合结论被设计与施工单位采用;工程竣工后,已正常运营使用若干年的实践事实反映了该集成分析、综合评价方法是成功的表明综合评价、集成分析是高速公路岩质高边坡稳定性评价分析的重要途径.
Keyword :
Sarma法 Sarma法 岩质高边坡 岩质高边坡 有限单元法(FEM) 有限单元法(FEM) 稳定性 稳定性 赤平极射投影法 赤平极射投影法
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GB/T 7714 | 姚环 , 郑振 , 简文彬 et al. 公路岩质高边坡稳定性的综合评价研究 [J]. | 岩土工程学报 , 2006 , 28 (5) : 558-563 . |
MLA | 姚环 et al. "公路岩质高边坡稳定性的综合评价研究" . | 岩土工程学报 28 . 5 (2006) : 558-563 . |
APA | 姚环 , 郑振 , 简文彬 , 沈骅 , 秦刚 . 公路岩质高边坡稳定性的综合评价研究 . | 岩土工程学报 , 2006 , 28 (5) , 558-563 . |
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以福建省某大桥桩基施工中出现的缺陷桩为工程背景,用可视化程序C++Builder编制数值计算程序进行计算分析.该数值分析计算程序不仅能方便计算缺陷桩的极限承载力,还可以计算一般桩基的极限承载力,为工程实践中碰到的缺陷桩承载力评估和工程设计提供方便.
Keyword :
数值计算方法 数值计算方法 桥梁工程 桥梁工程 缺陷桩 缺陷桩
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GB/T 7714 | 潘桥文 , 郑振 , 江浩 . 桥梁工程缺陷桩数值计算方法 [J]. | 福州大学学报(自然科学版) , 2006 , 34 (1) : 120-123 . |
MLA | 潘桥文 et al. "桥梁工程缺陷桩数值计算方法" . | 福州大学学报(自然科学版) 34 . 1 (2006) : 120-123 . |
APA | 潘桥文 , 郑振 , 江浩 . 桥梁工程缺陷桩数值计算方法 . | 福州大学学报(自然科学版) , 2006 , 34 (1) , 120-123 . |
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