In this paper , a novel Magnetorheological （ MR） valve with a tunable resistance minimum 1 mm to maximum 2 mm was designed. In addition , a mathematical model of the pressure drop betweenthe inlet port and the outle...In this paper , a novel Magnetorheological （ MR） valve with a tunable resistance minimum 1 mm to maximum 2 mm was designed. In addition , a mathematical model of the pressure drop betweenthe inlet port and the outlet port for the proposed MR valve was developed. Magnetic simulation was and combined with the pressure drop calculation using the derived MR valve model. The valve geometric parameters , such as the valve body thickness , the winding groove depth and the large end of radiusof the valve sleeve on the valve performance were analyzed. The relevant results will provide the theoretical basisfor the MR valve size design and structure optimization.展开更多
针对现有机械自力式恒流量控制阀结构多目标优化设计难点,提出基于圆锥环状缝隙为控制流道的变刚度弹簧式恒流阀的设计方案,并采用k-ε标准湍流模型,对不同压差下的出口流量进数值字模拟,结果显示,在压力波动范围(30~150 k Pa)内该恒流...针对现有机械自力式恒流量控制阀结构多目标优化设计难点,提出基于圆锥环状缝隙为控制流道的变刚度弹簧式恒流阀的设计方案,并采用k-ε标准湍流模型,对不同压差下的出口流量进数值字模拟,结果显示,在压力波动范围(30~150 k Pa)内该恒流阀平均流量理论误差可控制在0.19%左右,精度高,结构简单,通流能力大。展开更多
A compact annular-radial-orifice flow magnetorheological(MR)valve was developed to investigate the effects of radial resistance gap on pressure drop.The fluid flow paths of this proposed MR valve consist of a single a...A compact annular-radial-orifice flow magnetorheological(MR)valve was developed to investigate the effects of radial resistance gap on pressure drop.The fluid flow paths of this proposed MR valve consist of a single annular flow channel,a single radial flow channel and an orifice flow channel through structure design.The finite element modelling and simulation analysis of the MR valve was carried out using ANSYS/Emag software to investigate the changes of the magnetic flux density and yield stress along the fluid flow paths under the four different radial resistance gaps.Moreover,the experimental tests were also conducted to evaluate the pressure drop,showing that the proposed MR valve has significantly improved its pressure drop at 0.5 mm width of the radial resistance gap when the annular resistance gap is fixed at 1 mm.展开更多
基金supported by National Natural Science Foundation of China (No.51165005,51475165)
文摘In this paper , a novel Magnetorheological （ MR） valve with a tunable resistance minimum 1 mm to maximum 2 mm was designed. In addition , a mathematical model of the pressure drop betweenthe inlet port and the outlet port for the proposed MR valve was developed. Magnetic simulation was and combined with the pressure drop calculation using the derived MR valve model. The valve geometric parameters , such as the valve body thickness , the winding groove depth and the large end of radiusof the valve sleeve on the valve performance were analyzed. The relevant results will provide the theoretical basisfor the MR valve size design and structure optimization.
文摘针对现有机械自力式恒流量控制阀结构多目标优化设计难点,提出基于圆锥环状缝隙为控制流道的变刚度弹簧式恒流阀的设计方案,并采用k-ε标准湍流模型,对不同压差下的出口流量进数值字模拟,结果显示,在压力波动范围(30~150 k Pa)内该恒流阀平均流量理论误差可控制在0.19%左右,精度高,结构简单,通流能力大。
基金Supported by the National Natural Science Foundation of China(51765016,51475165,11462004)the Jiangxi Provincial Foundation for Leaders of Academic and Disciplines in Science(20162BCB22019)5511 Science and Technology Innovation Talent Project of Jiangxi Province(20165BCB18011)
文摘A compact annular-radial-orifice flow magnetorheological(MR)valve was developed to investigate the effects of radial resistance gap on pressure drop.The fluid flow paths of this proposed MR valve consist of a single annular flow channel,a single radial flow channel and an orifice flow channel through structure design.The finite element modelling and simulation analysis of the MR valve was carried out using ANSYS/Emag software to investigate the changes of the magnetic flux density and yield stress along the fluid flow paths under the four different radial resistance gaps.Moreover,the experimental tests were also conducted to evaluate the pressure drop,showing that the proposed MR valve has significantly improved its pressure drop at 0.5 mm width of the radial resistance gap when the annular resistance gap is fixed at 1 mm.
