摘要
设计了一种安装于钢板弹簧和车桥之间的压电能量收集装置,用于收集悬架系统中损耗的振动能量。建立了四分之一车辆压电馈能悬架系统模型,并进行随机路面试验,通过拟合对比试验数据和仿真数据,验证了所建模型的准确性和可信性。分别在随机路面与脉冲路面输入下分析了不同工况下压电发电装置输出功率的均方根值(RMS),结果表明,在随机路面输入下,输出功率RMS与车辆行驶速度、载货状态成正比。在脉冲路面输入下,输出功率RMS随车辆行驶速度先增大后减小,车辆空载以30km/h速度行驶时,输出功率最大,为102.24W。
A piezoelectric energy harvesting device installed between leaf spring and axle was designed to harvest the vibration energy lost in suspension system. A quarter vehicle piezoelectric energyfed suspension system model was established and random road surface tests were carried out. The accuracy and credibility of the model are verified by comparing test data with simulation data.The root mean square(RMS)value of output power of piezoelectric generator under different working conditions was analyzed under random road surface and pulse road surface input respectively and the results show that for random excitations,the RMS value of output power is proportional to the driving speed of vehicles and the cargo state. For pulse roads,the RMS value of output power increases first and then decreases with the vehicle speed and the greatest value of 102.24 W is obtained at 30 km/h.
作者
李蒙
王铁
赵震
王戎
LI Meng;WANG Tie;ZHAO Zhen;WANG Rong(College of Mechanical and Vehicle Engineering of Taiyuan University of Technology,Shanxi Taiyuan 030024,China)
出处
《机械设计与制造》
北大核心
2021年第12期135-139,144,共6页
Machinery Design & Manufacture
基金
山西省科技重大专项(20181102006)。
关键词
汽车悬架
振动能量
压电能量收集
RMS
Vehicle Suspension
Vibration Energy
Piezoelectric Energy Harvesting
RMS
