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Design and Characteristics Experiments of Composited Electro-magnetic Actuators

PENG Hu;ZHANG Jinqiu;LIU Yile;PENG Zhizhao;ZHANG Jian;ZHANG Lijun;Department of Technical Support Engineering,Academy of Armored Force Engineering;Brigade of Equipment Trail and Training,Academy of Armored Force Engineering;Training Regiment,Academy of Armored Force Engineering;  
In order to recover vehicle suspension vibration energy,solve the contradictions between vibrations and energy recoveries,and improve the reliability of suspension systems,based on some military wheel type cross-country vehicles,a composited electro-magnetic actuator was designed,that was constituted with rotary motor and magneto-rheological damper in parallel.Taking gears and splines as motion transition devices,multi-objective genetic algorithm(MOGA)was applied to evaluate MRD parameters,and the parameter calculations and type selection of motors and reduction boxes were conducted,aprinciple prototype was built.Some experiments on the basic resistances,active force characteristics,energy recovery characteristics and indicator characteristics of MRD were carried out.The results indicate that this composited electro-magnetic actuator may realize maximum active force to 1 930 N,when suspension relative speed is as 0.52 m/s,energy recovery voltage may reach 43 V,while MRD may export maximum damper force of 1 100 N when the current input is as 2 A,the multiple that may be adjusted is as 6,each index may satisfy design requirements,and the MRD will be suitable for the areas of vehicle engineering.
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