论文部分内容阅读
车辆的节能低碳技术是当今的研究热点, 针对悬架系统耗散功率大等实际问题, 提出了一种基于Halbach永磁阵列的复合式电磁馈能悬架阻尼器, 将电涡流发生结构与电磁式能量采集装置结合起来, 研究了馈能阻尼性能与电涡流阻尼器的相互关系.建立了电磁式能量采集装置的等效磁路模型, 定义了两组永磁体之间位错率, 研究位错率对复合阻尼器的输出电性能和电涡流结构涡流损耗的影响.最后制作样机并搭建阻尼测试平台, 样机的阻尼系数调节范围约为500～1 270 N·s/m, 在位错率γ=1的条件下达到约1.7 W (频率f=5 Hz、振幅Y=6 mm的简谐振动激励) 的最大能量采集功率, 最大比质量阻尼系数可以达到1 427.0 s-1.该复合式电磁馈能悬架阻尼器为以后的悬架能量回收及电磁阻尼器设计等方面的研究提供了一种新的思路.“,”Energy-saving and low-carbon technology for vehicles is a research hotspot. Considering the large power dissipation in suspension system, a hybrid electromagnetic energy-suspension suspension damper is proposed based on Halbach permanent magnet array. The eddy current generation structure and an electromagnetic energy harvesting device are combined, and the relationship between feed energy damping performance and eddy current damper is studied. The equivalent magnetic circuit model of the electromagnetic energy harvesting device is established. The dislocation rate between the two sets of permanent magnets is defined. The influence of the dislocation rate on the output electrical performance of the composite damper and the eddy current loss of the eddy current structure is analyzed. Finally, the prototype and a corresponding damping test platform are built. The damping coefficient adjustment range of the prototype can be widened from 500 to 1 270 N·s/m, and the maximum energy harvesting power can be up to about 1.7 W at a dislocation rate of γ=1 (Simple harmonic excitation with frequency f=5 Hz and amplitude Y=6 mm). The maximum specific mass damping coefficient can reach 1 427.0 s-1. The hybrid electromagnetic regenerative suspension damper provides a new idea for future research on suspension energy recovery and electromagnetic damper design.