摘要
考虑线圈质量、电感、电阻以及机械振动系统与电磁式能量回收装置之间耦合作用,建立装有簧上电磁馈能式动力吸振器(EMER-DVA)的四分之一车辆动力学模型.基于动力吸振原理及电磁馈能系统动刚度特性获得EMER-DVA参数匹配设计.对比分析传统式动力吸振器(DVA)、EMER-DVA和无DVA车辆的车身振动加速度、悬架动挠度及输出功率的幅频特性,以及在正弦位移、随机位移激励工况下EMER-DVA和无DVA车辆的时域振动特性和振动能量回收性能.结果表明,EMER-DVA使车身振动加速度、悬架动挠度振动传递率在悬架固有频率处分别降低17.8%和8.7%.在C级随机不平路面、不同车速下,车身振动加速度、悬架动挠度均值降低3.2%、2.7%,输出功率、EMER-DVA挠度均值分别为0.98 W、11.8 mm;在D级随机不平路面下,相应参数分别为4.5%、3.1%、2.8 W、21.3 mm.可以看出,EMER-DVA在提高车辆行驶平顺性的同时可以有效回收振动能量.开展EMER-DVA台架振动试验,试验结果与数值计算结果较吻合,验证了本研究EMER-DVA动力学模型的准确性.
A quarter vehicle dynamic model with electromagnetic energy regenerative dynamic vibration absorber(EMER-DVA)on the sprung mass was established,considering the coil mass,inductance,resistance,and coupling effects between the mechanical vibrating system and the electromagnetic energy recovery device.The parameter matching design for EMER-DVA was obtained based on the dynamic vibration absorber(DVA)principle and dynamical stiffness characteristics of the electromagnetic energy regenerative system.The amplitude-frequency behaviors in terms of body acceleration,suspension deflection and output power of the vehicles with DVA,EMER-DVA and non-DVA were compared in frequency domain.The time-domain vibration and energy recovery performances of the vehicles with EMER-DVA and non-DVA were analyzed under sinusoidal and random road displacement excitation conditions.Results show that,by comparing with the vehicle with non-DVA,EMER-DVA could reduce the vehicle body vibration acceleration and suspension dynamic deflection by 17.8%and 8.7%,respectively,at the natural frequency of the sprung mass.And the mean values of the above responses were decreased by 3.2%and 2.7%at different velocities,respectively,under the C-class random road condition.In addition,the mean values of output power and EMER-DVA deflection were 0.98 W and 11.8 mm,respectively.These values were 4.5%,3.1%,2.8 W and 21.3 mm,respectively,under the D-class random road condition.It indicates that the EMER-DVA may effectively recover the vibration energy while improving the vehicle ride comfort.Bench test of the EMER-DVA was conducted,and the corresponding experimental results agreed well with that of the numerical method,which validated the proposed dynamical model of the EMER-DVA.
作者
祝恒佳
田思远
李双宝
张威
ZHU Heng-jia;TIAN Si-yuan;LI Shuang-bao;ZHANG Wei(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China;Aviation Special Ground Equipment Research Base,CAAC,Tianjin 300300,China;Research Institute of Science and Technology,Civil Aviation University of China,Tianjin 300300,China)
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2023年第8期1644-1654,共11页
Journal of Zhejiang University：Engineering Science
基金
国家自然科学基金青年科学基金资助项目(12002367)
国家自然科学基金民航联合研究基金重点支持项目(U2033208)
国家自然科学基金资助项目(12172376)。
关键词
动力吸振器
振动能量回收
多场耦合
车辆动力学
平顺性
dynamic vibration absorber
vibration energy recovery
multifield coupling
vehicle system dy-namics
ride comfort
作者简介
祝恒佳(1987-),男,副教授,从事车辆动力学、民航特种装备与作业研究.orcid.org/0000-0002-7736-9653.E-mail:hjzhu@cauc.edu.cn;通信联系人:张威,男,教授.orcid.org/0009-0009-3036-6170.E-mail:weizhang@cauc.edu.cn。
