磁流变液及其阻尼器的制备与性能研究  

Preparation and properties of MR fluids and MR damper

作　　者：程海斌[1] 瞿伟廉[1] 张剑[1] 涂建维[1] 许帅[1] 官建国[1] 张清杰[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《功能材料》2006年第5期811-813,共3页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2004AA339020)

摘　　要：研究了一种新型MR液和MR阻尼器;用振动样品磁强计测试了MPS-MRF-25羰基铁粉的磁性能;用磁流变仪测试了MR液的表观粘度和磁致剪切应力;用静置沉降法分析了MR液的抗沉降稳定性;用电液伺服材料性能试验机测试了MR阻尼器的性能。结果表明MPS-MRF-25羰基铁粉具有优良的磁性能;以其制备的MR液具有较好的抗沉降稳定性和温度稳定性;MR阻尼器在2A电流下可以达到15kN的阻尼力。A novel magnetorheological（MR） fluid and MRF damper with a spring accumulator were prepared. The magnetic properties of carhonyl iron particles were characterized by VSM; the apparent viscosities and the magnetic field-induced shear stresses of the magnetorheological fluids above were investigated by an advanced rheometric expansion system; the properties of MR damper were tested by an electro-hydralic servocontrol testing system. The results show that carbonyl iron particle chosen has excellent magnetic property; the stability of MR fluid was improved;the force of the MR damper under the current of 2A is about 15kN.

关 键 词：磁流变液 阻尼器 剪切应力 羰基铁粉 

分 类 号：TM27[一般工业技术—材料科学与工程]