车致路面变形能量收集研究
发布时间：2018-10-05 17:41
【摘要】：摘要：因价格低廉、易于安装和耐久性好,无线传感技术在土木工程领域中受到广泛关注并被应用于实际监测中,但是采取电池供电的传统无线传感器存在长期供能不足的问题。从外部环境中获取能量并给无线传感节点供电已成为当前研究热点,其中使用压电效应收集周围环境中的机械能是一种比较高效的集能模式。本文利用这种效应,俘获车辆运动引起的路面变形能,提出应用于路面变形能俘获的压电俘能器,将变形能转变成电能并存储起来,进而可为道路基础设施提供能量,还可利用俘能器的传感效应对路面交通进行实时监测。 文中将压电俘能器埋设于路面中进行道路变形能俘获,共分为五章：第一章给出课题研究背景和意义；第二章对研究理论与方法进行了介绍；第三章基于Euler-Bernoulli梁理论,将公路简化为弹性地基梁,路面运动车辆简化为移动线荷载,通过应用Fourier变换及柯西留数理论计算出了路面结构的变形响应,并应用正压电效应得到了压电俘能器的电压及功率输出：第四章基于Kirchhoff板理论,将公路系统简化为弹性地基板,路面运动车辆简化为移动均布荷载,与第三章的梁模型类似,进行了俘能分析；第五章考虑实际情况,将运动车辆轮压简化为四个移动均布荷载,同样基于板理论,给出了理论解析,并运用Simulink模拟了压电俘能器为电池充电的全过程。 通过本文的理论探讨,为将来的俘能器选型及道路中俘能器应用提供了一定的借鉴。
[Abstract]:Abstract: because of its low price, easy installation and good durability, wireless sensing technology has been widely concerned in the field of civil engineering and has been applied in practical monitoring. However, the traditional wireless sensor with battery power supply has the problem of insufficient power supply for a long time. Obtaining energy from the external environment and supplying power to wireless sensor nodes has become a hot research topic. Among them, the use of piezoelectric effect to collect mechanical energy in the surrounding environment is a more efficient energy collection mode. In this paper, by using this effect, the road deformation energy caused by the motion of the vehicle is captured, and a piezoelectric energy capture device applied to the road deformation energy capture is proposed, which can convert the deformation energy into electric energy and store it, thus providing energy for the road infrastructure. The sensor effect of the energy capture device can also be used to monitor the road traffic in real time. In this paper, the piezoelectric energy capture device is buried in the road for deformation energy capture, which is divided into five chapters: the first chapter gives the background and significance of the research, the second chapter introduces the research theory and methods, the third chapter is based on the Euler-Bernoulli beam theory. The highway is simplified as an elastic foundation beam, and the moving vehicle is simplified as a moving line load. The deformation response of the pavement structure is calculated by applying the Fourier transform and Cauchy residue theory. The voltage and power output of the piezoelectric energy capture device is obtained by using the positive piezoelectric effect. In chapter 4, based on the Kirchhoff plate theory, the highway system is simplified as the elastic foundation plate, and the moving vehicle is simplified as the moving uniform load, which is similar to the beam model in the third chapter. In the fifth chapter, considering the actual situation, the wheel pressure of moving vehicle is simplified to four moving uniform loads, and the theoretical analysis is given based on the plate theory, and the whole process of charging the battery with piezoelectric energy capture device is simulated by Simulink. Through the theoretical discussion in this paper, it provides some reference for the selection of energy capture device and the application of energy capture device in the road in the future.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.2;TM619
本文编号：2254267
[Abstract]:Abstract: because of its low price, easy installation and good durability, wireless sensing technology has been widely concerned in the field of civil engineering and has been applied in practical monitoring. However, the traditional wireless sensor with battery power supply has the problem of insufficient power supply for a long time. Obtaining energy from the external environment and supplying power to wireless sensor nodes has become a hot research topic. Among them, the use of piezoelectric effect to collect mechanical energy in the surrounding environment is a more efficient energy collection mode. In this paper, by using this effect, the road deformation energy caused by the motion of the vehicle is captured, and a piezoelectric energy capture device applied to the road deformation energy capture is proposed, which can convert the deformation energy into electric energy and store it, thus providing energy for the road infrastructure. The sensor effect of the energy capture device can also be used to monitor the road traffic in real time. In this paper, the piezoelectric energy capture device is buried in the road for deformation energy capture, which is divided into five chapters: the first chapter gives the background and significance of the research, the second chapter introduces the research theory and methods, the third chapter is based on the Euler-Bernoulli beam theory. The highway is simplified as an elastic foundation beam, and the moving vehicle is simplified as a moving line load. The deformation response of the pavement structure is calculated by applying the Fourier transform and Cauchy residue theory. The voltage and power output of the piezoelectric energy capture device is obtained by using the positive piezoelectric effect. In chapter 4, based on the Kirchhoff plate theory, the highway system is simplified as the elastic foundation plate, and the moving vehicle is simplified as the moving uniform load, which is similar to the beam model in the third chapter. In the fifth chapter, considering the actual situation, the wheel pressure of moving vehicle is simplified to four moving uniform loads, and the theoretical analysis is given based on the plate theory, and the whole process of charging the battery with piezoelectric energy capture device is simulated by Simulink. Through the theoretical discussion in this paper, it provides some reference for the selection of energy capture device and the application of energy capture device in the road in the future.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U416.2;TM619
【共引文献】
相关期刊论文 前1条
1 郑学军;梅靖羚;张勇;张智雄;费明祥;;末端质量块对层合悬臂梁d_(15)模式压电俘能器性能的影响[J];湘潭大学自然科学学报;2014年02期
，本文编号：2254267
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