国产bbaaaaa片,成年美女黄网站色视频免费,成年黄大片,а天堂中文最新一区二区三区,成人精品视频一区二区三区尤物

首頁> 中文期刊> 《后勤工程學(xué)院學(xué)報(bào)》 >有場(chǎng)條件下不同羰基鐵粉磁流變液的摩擦特性

有場(chǎng)條件下不同羰基鐵粉磁流變液的摩擦特性

     
  • 摘要
  • 著錄項(xiàng)
  • 相似文獻(xiàn)
  • 相關(guān)主題

摘要

采用磁化頂球法為四球機(jī)點(diǎn)摩擦副加場(chǎng)，測(cè)試不同種類羰基鐵粉制備的磁流變液在有場(chǎng)狀態(tài)下的摩擦特性，分析羰基鐵粉表面類型和粒徑對(duì)磁流變液摩擦特性的影響。結(jié)果表明，在外磁場(chǎng)作用下，摩擦副間的摩擦程度減輕，磁流變液的潤滑性能提升。還原型羰基鐵粉制備的磁流變液在有場(chǎng)作用下表現(xiàn)出良好的潤滑性能，羰基型磁流變液較差，而經(jīng)過SiO2表面包覆的羰基鐵粉能夠有效減輕有場(chǎng)條件下磁流變液的摩擦。有場(chǎng)條件下，磁流變液的摩擦因數(shù)隨羰基鐵粉粒徑的增大而增大。%A magnetized top ball was used to apply external magnetic field and several types of magnetorhological fluids based on different carbonyl irons, which were tested by four?ball machine under magnetic field to analyse the influences on tribologi?cal properties of MRFs by CI properties consisting of surface type and particle size. The results indicate that external magnetic field can ease the friction and improve the tribological properties of MRFs. The MRFs based on CN particles present better tribological properties under magnetic field, on the contrary, MRFs based on OP perform poorly. SiO2 coating can promote the tribological prop?erties of MRFs effectively. And MRFs based on big CI particles display higher friction coefficients, but this phenomenon becomes in?distinctive with the increase of magnetic field strength.

著錄項(xiàng)

相似文獻(xiàn)

  • 中文文獻(xiàn)
  • 外文文獻(xiàn)
  • 專利
獲取原文

客服郵箱：kefu@zhangqiaokeyan.com

京公網(wǎng)安備：11010802029741號(hào) ICP備案號(hào)：京ICP備15016152號(hào)-6 六維聯(lián)合信息科技 (北京) 有限公司?版權(quán)所有

  • 客服微信

  • 服務(wù)號(hào)