摘要
当前磁流变减振器阻尼力模型通常根据工作介质本身的性质来建立,未充分考虑应用条件下诸如温升、补偿压力等因素的影响。针对现有阻尼力模型的不足,在利用牛顿流体模型和Bingham流体模型对混合工作模式的单杆磁流变减振器阻尼力进行理论分析的基础上,充分考虑了补偿压力和温度变化的影响,得出了修正的阻尼力模型。该模型说明了温度变化与动力粘度系数的关系,并且包含了补偿压力对阻尼力的贡献,为磁流变减振器的应用设计提供了理论支持。
Generally,current damping force models of the magnetorheological fluid（MRF）absorber are only based on the characteristics of MRF without consideration of factors such as temperature and compensation pressure in working conditions.Aiming to the mentioned case,firstly the Newton and Bingham fluid model are taken to analyze theoretically a single-bar absorber under the cut and flow working pattern.Then,the temperature-rising influence on the dynamic viscosity is reveal.And the contribution of the compensation pressure to the damping force is taken into account.Finally,the revised damping force model is built up to guide the application design for MRF absorber.
出处
《机械设计与制造》
北大核心
2010年第5期235-237,共3页
Machinery Design & Manufacture
基金
教育部博士点基金资助(20070614022
200806141063)项目
电子科技大学青年基金重点资助项目
关键词
磁流变
阻尼力
温升
压力补偿
Magnetorheological fluid
Damping force
Pressure compensation
Temperature rising
