中国科学技术大学学报
中國科學技術大學學報
중국과학기술대학학보
JOURNAL OF UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
2001年
2期
168-173
,共6页
金昀%张培强%汪小华%吴卅建
金昀%張培彊%汪小華%吳卅建
금윤%장배강%왕소화%오삽건
磁流变液%剪切屈服应力%Maxwell应力张量
磁流變液%剪切屈服應力%Maxwell應力張量
자류변액%전절굴복응력%Maxwell응력장량
利用MaxweU应力张量,考虑颗粒的磁化饱和过程和非线性磁化过程,使用AN-
SYS软件三维有限元单元建立了基本力学模型,计算结果和实验取得了良好的一致.
并就颗粒的体积浓度、磁化饱和强度等对磁流变液性能的影响进行了计算和比较.还
构建了体心立方结构模型,初步计算了这种模型下磁流变液的剪切屈服应力.
利用MaxweU應力張量,攷慮顆粒的磁化飽和過程和非線性磁化過程,使用AN-
SYS軟件三維有限元單元建立瞭基本力學模型,計算結果和實驗取得瞭良好的一緻.
併就顆粒的體積濃度、磁化飽和彊度等對磁流變液性能的影響進行瞭計算和比較.還
構建瞭體心立方結構模型,初步計算瞭這種模型下磁流變液的剪切屈服應力.
이용MaxweU응력장량,고필과립적자화포화과정화비선성자화과정,사용AN-
SYS연건삼유유한원단원건립료기본역학모형,계산결과화실험취득료량호적일치.
병취과립적체적농도、자화포화강도등대자류변액성능적영향진행료계산화비교.환
구건료체심립방결구모형,초보계산료저충모형하자류변액적전절굴복응력.
By using Maxwell stress tensor and the three-dimension single particle, some computation is
carred ouir according to the MRF-132LD produced by Lord Co., after considering the influence of the
magnetic saturation and non-linear magnetization. The result of the computation is in good agreement
with that of the experiment. The authors continued the computation on the influence of volume fraction
and magnetic saturation intensity, and arrived at some valuable conclusions. For example shear yield
stress has the direct ratio to the square of magnetic saturation intensity. This work can help to improve
the capability of MRF, and how to expect and improveshear yield stress of MRF. Also, CCT model
was consfracted and some computation was condacted.