不同切角方柱斜切体驰振压电能量收集研究-《郑州大学学报(工学版)》

文章信息/Info

Title:: Study on Piezoelectric Energy Harvesting of Square Column Oblique Body at Different Angles

作者:: 王军雷; 张程雲; 陈卫哲; 吴义鹏; 王定标; 靳遵龙; 郑州大学机械与动力工程学院;许昌市质量技术监督检验测试中心;南京航空航天大学机械结构力学及控制国家重点实验室;

Author(s):: Wang Junlei; Zhang Chengyun; Chen Weizhe; Wu Yipeng; Wang Dingbiao; Jin Zunlong;; School of Mechanical and Power Engineering, Zhengzhou University; Xuchang City Quality, Technical Supervision and Testing Center; Nanjing University of Aeronautics and Astronautics University of Mechanical Structure and Control State Key Laboratory;

Keywords:: Fangzhu oblique cutting; crimson capture energy device; stubborn; smooth square column; vibration reduction

摘要:: 本文通过风洞试验，研究了不同斜切角度方柱斜切体（θ = 30°、45°、60°）和光滑方柱驰振式压电俘能器的俘能特性，分析了输出功率和电压在不同风速下的变化规律.结果表明：在最优负载R = 0.6 MΩ下，光滑方柱和方柱斜切体（θ = 30°、45°、60°）驰振压电俘能器的输出电压和功率均随风速的增大而增大，且增长率均呈现先增大后减小的趋势；采用光滑方柱钝体的输出电压和功率均大于方柱斜切体，在风速为U = 3.194 m/s时，光滑方柱驰振压电俘能器收集到的输出功率为0.0063 mW，分别是斜切角θ为30°、45°和60°的方柱斜切体的1.28倍、1.39倍和1.55倍；在相同风速下，斜切角度θ为30°的方柱斜切体输出电压和功率最大，θ为45°时次之，θ为60°时最小.本文的研究可以为相关压电俘能器的设计和工程中减振的设计提供借鉴.

Abstract:: In this paper, through a series of wind tunnel test, the energy capture characteristics of the square column oblique body (θ = 30°,45°,60°) and the bare square column with galloping piezoelectric energy harvester are studied. The variation rule of their output power and voltage under different wind speed are analyzed. The results show that under the optimal load R = 0.6 MΩ, the output voltage and power of the bare square column and the square column oblique body ( θ = 30°,45°,60°) piezoelectric energy harvester increase with the increase of wind speed, while the growth rate shows a trend of increasing first and then decreasing. The output voltage and power of the bare square column are greater than that of the square column oblique body. When the wind speed is U = 3.194 m/s, the output power collected by the bare square column galloping piezoelectric energy harvester is 0.0063 mW, which is 1.28 times, 1.39 times and 1.55 times of the square column oblique body with the oblique angle θ of 30°, 45° and 60°, respectively. Under the same wind speed, the output voltage and power of the square column oblique body with the oblique angle θ of 30° were the highest, followed by 45°, and the lowest was 60°. The study of this paper can provide reference for the design of relevant piezoelectric energy harvester and the design of vibration reduction in engineering