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日本機械学会学術誌(和文)年間アクセス数トップ10

机译:日本机械工程师学会年度访问量最高的10种期刊(日语)

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摘要

The authors propose an absorber that generates electrical power in order to not only suppress vibration but also get electrical energy when many traffic signal poles are oscillated by wind, traffic turbulence. The absorber consists of a displacement magnifying mechanism by using levers, solenoid coils and rare-earth magnets. It is useful for small deformation between a beam and a column of the traffic pole. Vibration modes of the pole are analyzed by using FEM, and then a small scale model of the traffic pole is built up. The small scale model has 2.7 m high, consists of a steel column and a cantilever beam due to rescale about 1/3 times of a real scale model, and the natural frequency of first mode is arranged to 3.5 Hz. Trial absorber is manufactured and a damping force, which is caused by the coils crossing magnetic field, is adjusted. Dynamic characteristics of the trial absorber are measured by a shaking actuator. In order to confirm vibration reduction and energy conversion, harmonic vibration test of small scale model when the trial absorber is installed is carried out by using a shaking table. The experimental results of the harmonic responses are compared with the calculated results which are derived by FEM. Effect of vibration suppression and efficiency of generating electrical power are evaluated experimentally and numerically.
机译:作者提出了一种吸收器,该吸收器产生电能,以便不仅抑制振动,而且当许多交通信号杆被风,交通湍流振动时也能获取电能。减震器由使用杠杆,电磁线圈和稀土磁体的位移放大机构组成。对于交通杆的梁和柱之间的微小变形很有用。通过有限元分析杆的振动模式,建立交通杆的小尺度模型。小比例模型的高度为2.7 m,由钢柱和悬臂梁组成(由于重新比例是实际比例模型的1/3倍),并且第一模式的固有频率设置为3.5 Hz。制造了试制吸收器,并调节了由线圈穿过磁场引起的阻尼力。试验吸收器的动态特性是通过摇动致动器测量的。为了确认减振和能量转换,在安装试验吸收器时使用振动台进行了小型模型的谐波振动试验。将谐波响应的实验结果与通过有限元法得出的计算结果进行比较。通过实验和数值评估了减振效果和发电效率。

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    《日本機械学会誌》 |2018年第1195期|49-49|共1页
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