円筒軸受の油膜動特性の非線形解析
1994 年 60 巻 571 号 p. 1020-1026
詳細
1994 年 60 巻 571 号 p. 1020-1026
The problem of calculated and measured values of plain journal bearing oil film coefficient not giving the same reading in the region of high eccentricity ratio has been addressed through various approaches (e.g., THD analysis) in an effort to determine the cause of such a discrepancy, all to little avail. The authors studied the relation between the bearing oil film dynamic characteristics and the boundary condition for the region of oil film pressure generation and, by assuming that the squeeze oil film forms only when the rotor shaft journal approaches the bearing metal, the damping coefficient more closely approximating the experimental value than hitherto could be calculated.
