A self-tunable wind energy harvester utilising a piezoelectric cantilever beam with bluff body under transverse galloping for field deployment

悬臂梁 声学 风力发电 振动 虚张声势 梁(结构) 风速 能量收集 固有频率 压电 结构工程 工程类 物理 机械 电气工程 功率(物理) 气象学 量子力学
作者
Yee Yan Lim,Ricardo Vásquez Padilla,Andreas Unger,Rodrigo Barraza,Ahmed Mostafa Thabet,Iman Izadgoshasb
出处
期刊:Energy Conversion and Management [Elsevier BV]
卷期号:245: 114559-114559 被引量:30
标识
DOI:10.1016/j.enconman.2021.114559
摘要

Natural vibrations can be harnessed using piezoelectric transducers and converted into electrical energy to power small electronic devices such as sensors network for structural health monitoring. One promising wind energy harvester configuration is a piezoelectric cantilever beam with a bluff body attached at the free end. The strain-induced into the cantilever by the galloping motion, and therefore the power produced is dependent on the bluff body shape, wind speed and the incidence angle of the wind to the bluff body face. Thus far, most studies related to piezoelectric cantilever beam with transverse galloping bluff body were conducted in wind tunnels with laminar flow and graduated wind speed increase. There is no research conducted on natural and chaotic wind conditions. The effectiveness of the bluff body in varying wind conditions is not known. In this study, a self-tunable piezoelectric wind energy harvester was proposed by using a rotating base to account for the erratic nature of wind in the field. Three bluff body prisms (square, triangle and D-section), fitted to a piezoelectric cantilever with fixed and rotating bases, were sequentially studied under the natural wind condition. Results indicated that the rotating base configurations have a higher cut-in speed when compared with the motionless base but was able to produce higher output power, especially with the use of a square prism as the bluff body under typical urban windspeed (i.e. 3–6 m/s). This first-ever field study demonstrated the potential and advantage of employing the piezoelectric wind energy harvester with a rotating base under natural and erratic wind conditions.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
qinsu完成签到,获得积分20
1秒前
科研乞丐完成签到,获得积分10
1秒前
1秒前
2秒前
PCPCPC发布了新的文献求助10
2秒前
3秒前
量子星尘发布了新的文献求助10
3秒前
zjx0925完成签到,获得积分10
3秒前
drzz发布了新的文献求助10
3秒前
慕青应助ddddyooo采纳,获得10
3秒前
科目三应助alna采纳,获得10
4秒前
4秒前
TSY发布了新的文献求助10
4秒前
4秒前
liao完成签到,获得积分10
6秒前
6秒前
慕月发布了新的文献求助10
6秒前
熊有鹏发布了新的文献求助10
7秒前
DD应助雷雷采纳,获得10
7秒前
7秒前
7秒前
连仁兄发布了新的文献求助10
7秒前
YKH完成签到,获得积分10
7秒前
JamesPei应助范慧晨采纳,获得10
8秒前
进取拼搏发布了新的文献求助10
8秒前
9秒前
10秒前
dongdong完成签到,获得积分10
10秒前
猪猪hero发布了新的文献求助10
10秒前
11秒前
11秒前
AM发布了新的文献求助10
11秒前
12秒前
12秒前
benbenx发布了新的文献求助10
13秒前
zzz完成签到,获得积分10
14秒前
14秒前
哟哟哟完成签到 ,获得积分10
14秒前
SPQR完成签到,获得积分10
15秒前
传奇3应助迷人的冰安采纳,获得10
16秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 360
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3971333
求助须知:如何正确求助?哪些是违规求助? 3516028
关于积分的说明 11180607
捐赠科研通 3251147
什么是DOI,文献DOI怎么找? 1795693
邀请新用户注册赠送积分活动 875999
科研通“疑难数据库(出版商)”最低求助积分说明 805228