工程设计学报2017，Vol.24Issue(5)：518-522,529,6.DOI:10.3785/j.issn.1006-754X.2017.05.005
电压对压电板壳风力机叶片振动的抑制研究
Study on suppression of vibration of the piezoelectric plate shell wind turbine blade under voltage
摘要
Abstract
The blade is the key part of wind turbine, in order to solve the problems of slow vibration attenuation and large distortion of blade when the blade is subjected to gust or random wind, the piezoelectric material was embedded in the blade, and the variational method, Hamilton principle and shell theory were used. The electro-mechanical coupling dynamics model of wind turbine blade of composite shell was conducted, and the response characteristics of blade before and after applying the control voltage were calculated by using MATLAB software. According to the calculation results, the change of the displacement and angle of the blade with time and the suppression of the blade vibration by the control voltage under the wind load were analyzed. The results showed that the vibration of blade under gust wind or random wind attenuated slowly before applying voltage, but, when the control voltage was applied to piezoelectric material on the blade, the vibration of blade attenuated quickly because of the reverse piezoelectric effect of piezoelectric material, which could improve aeroelastic stability of the wind turbine blade great in extreme wind conditions. Therefore, the piezoelectric material can be used to suppress the vibration of blade under extreme wind load by using its converse piezoelectric effect and applying control voltage according to wind load so as to improve service life of wind turbine blade.关键词
压电板壳风力机叶片/控制电压/风载作用/逆压电效应/振动抑制Key words
piezoelectric plate shell wind turbine blade/control voltage/wind load/reverse piezoelectric effect/vibration suppression分类
机械制造引用本文复制引用
乔印虎,韩江,张春燕..电压对压电板壳风力机叶片振动的抑制研究[J].工程设计学报,2017,24(5):518-522,529,6.基金项目
安徽省科技厅2017年重点研究项目(1704a0902058) （1704a0902058）
安徽省教育厅自然科学重大项目(KJ2017ZD44) （KJ2017ZD44）
安徽科技学院重点学科资助项目(AKZDXK2015C03) （AKZDXK2015C03）
安徽科技学院稳定人才基金资助项目(JXWD201602) （JXWD201602）
安徽科技学院校级一般项目(ZRC2016492) （ZRC2016492）
