CAJ | 학술논문

首先,分析传统电涡流缓速器及液力缓速器优缺点,电涡流缓速器工作时没有时间上的滞后性,但工作电流非常大,使蓄电池很快损坏;液力缓速器能以较小的质量提供较高的制动力矩,维修成本低,但液力缓速器结构复杂,加工装配困难,开始工作及断开时有时间滞后性. 其次,阐述磁流变液组成及效应,在零磁场下磁流变液中的磁性颗粒杂乱无章随机分布,在施加磁场后颗粒规则排列,沿着磁力线方向显示出成束的链状分布. 磁场越强,颗粒的链状排列越明显,磁流变液的剪切屈服强度越强. 最后,设计客车磁流变缓速器结构原理图,该磁流变缓速器工作在压缩与剪切相结合的模式下.据估计,该客车磁流变缓速器能够克服电涡流缓速器工作电流大及液力缓速器时间滞后的缺点 .
수선,분석전통전와류완속기급액력완속기우결점,전와류완속기공작시몰유시간상적체후성,단공작전류비상대,사축전지흔쾌손배;액력완속기능이교소적질량제공교고적제동력구,유수성본저,단액력완속기결구복잡,가공장배곤난,개시공작급단개시유시간체후성. 기차,천술자류변액조성급효응,재령자장하자류변액중적자성과립잡란무장수궤분포,재시가자장후과립규칙배렬,연착자력선방향현시출성속적련상분포. 자장월강,과립적련상배렬월명현,자류변액적전절굴복강도월강. 최후,설계객차자류변완속기결구원리도,해자류변완속기공작재압축여전절상결합적모식하.거고계,해객차자류변완속기능구극복전와류완속기공작전류대급액력완속기시간체후적결점 .
The advantages and disadvantages of the traditional eddy current and hydraulic retarder were analyzed in this paper.There exists no lag time in eddy current retarders.However, the large operating current will shorten the battery life.The hydraulic retarder, with low maintenance costs, can provide a larger brake torque with comparatively low weight.The composition and effect of magnetorheological fluid were also described in this paper.With zero magnetic field, the magnetic particles in magnetorheological fluid are very randomly dis-tributed.But there are rules in applied magnetic field for particles to be aligned along the direction of magnetic force lines, showing a chainlike distribution beam.The stronger the magnetic field is, the more obvious the chain packing of the particles and the stronger the shear yield strength of magnetorheological fluid.At last, a coach magnetorheological retarder sketch was proposed, which could work under compression plus shear mode. It is estimated that the vehicle magnetorheological retarder could work with lower current than eddy current re-tarders and work faster than hydraulic retarders.