CAJ | 학술논문

采用ANSYS有限元软件,计算了磁流变液单链在剪切过程中的力学特性,并以此为基准分别与基于简化偶极子模型和基于不简化偶极子模型的结果进行了比较。结果表明,简化偶极子模型在描述磁流变液力学特性方面具有较高的精度,但由其得到的剪切屈服应力略低于有限元计算结果。这对于改进偶极子模型以建立磁流变液性能更精确快捷的多层次描述方法,进而设计高性能磁流变液具有重要的意义。
채용ANSYS유한원연건,계산료자류변액단련재전절과정중적역학특성,병이차위기준분별여기우간화우겁자모형화기우불간화우겁자모형적결과진행료비교。결과표명,간화우겁자모형재묘술자류변액역학특성방면구유교고적정도,단유기득도적전절굴복응력략저우유한원계산결과。저대우개진우겁자모형이건립자류변액성능경정학쾌첩적다층차묘술방법,진이설계고성능자류변액구유중요적의의。
Based on the FE code ANSYS, the resistance of a particle-chain against the shear deformation of a magnetorheological fluid is analyzed. A micro-macro modeling for the response of MRFs subjected to shearing deformation is then derived by making use of a statistical approach. The results are compared with those obtained with the approaches based on the conventional magnetic dipole model with and without adopting the assumption that the size of the particles is much smaller than the distance between particles, respectively. It shows that the former can better replicate results with FE computation. This verification is significant because the magnetic dipole model is the fundamental element in formulating a micro-macro approach for the analysis of the macroscopic constitutive behavior of magnetorheological fluids.