摘要
The authors have studied the motion mechanism of the magnetic fluid in a reciprocating seal gap, on the basis of which the authors obtain an anti pressure formula of the reciprocating shaft magnetic fluid seal from general Navier Stokes equation. In order to verify the correctness of the anti pressure formula, the authors have calculated the magnetic field distribution of seal structure and have gotten the maximum still anti pressure. Finally, the authors have verified the influence of speed and stroke on the seal anti pressure. \{
The authors have studied the motion mechanism of the magnetic fluid in a reciprocating seal gap, on the basis of which the authors obtain an anti pressure formula of the reciprocating shaft magnetic fluid seal from general Navier Stokes equation. In order to verify the correctness of the anti pressure formula, the authors have calculated the magnetic field distribution of seal structure and have gotten the maximum still anti pressure. Finally, the authors have verified the influence of speed and stroke on the seal anti pressure. \{
基金
National Natural Science F oundation of China(No.5 970 5 0 0 4)
