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首页> 外文期刊>Meccanica: Journal of the Italian Association of Theoretical and Applied Mechanics >On vibration mitigation and energy harvesting of a non-ideal system with autoparametric vibration absorber system
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On vibration mitigation and energy harvesting of a non-ideal system with autoparametric vibration absorber system

机译：自动轨道吸振吸收系统非理想系统的振动缓解与能量收割

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摘要

This paper demonstrates that vibration mitigation and energy harvesting can be achieved simultaneously by using of an electricity-generating from autoparametric vibration absorber system (AVAS) and non-ideal system (NIS). The NIS consists of a simple portal frame excited by a small dc motor with eccentric mass, with limited power supply and located on the top. The AVAS consists of a cantilever beam with tip mass parallel coupled to NIS. A piezoelectric material is considered for energy harvesting installed in the base of the AVAS and an electric circuit is connected to the piezoelectric material in order to produce voltage output. Several numerical simulations were carried out focusing on the passage through the resonance of NIS, when the motor rotational frequency is near the portal frame natural frequency and when the non-ideal subsystem frequency is approximately twice the absorber beam frequency (two-to-one internal resonance). The results showed the existence of Sommerfeld effect in NIS and saturation phenomenon in the NIS-AVAS.
机译：本文表明，通过使用从自动驾驶振动吸收系统（AVAS）和非理想系统（NIS）的电力产生的电力可以同时实现振动缓解和能量收集。 NIS包括一个由带有偏心质量的小型直流电机激发的简单门户框架，电源有限，位于顶部。 AVAS由具有尖端质量平行的悬臂梁组成，耦合到NIS。考虑压电材料，用于安装在AVAS基部中的能量收集，并且电路连接到压电材料以产生电压输出。通过NIS的共振进行了几种数值模拟，当电动机旋转频率接近门户框架自然频率时，当非理想子系统频率约为吸收器光束频率的两倍（两对一内部谐振）。结果表明，NIS-AVAS中NIS和饱和现象中的SOMMERFELD效应的存在。

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