( 2 ) the foil bearing is treated as a continuous flexible surface which is supported on an elastic foundation . the stiffness and damping of the film are assumed to be liner and constant everywhere . the fluid is modeled by using the reynolds equation for a compressible gas ( 2 )建立了具有线性结构刚度和阻尼的弹性箔片轴承模型，并对这一弹性流体动力润滑( ehdl )问题建立了由非定常可压缩雷诺方程和弹性箔片平衡方程及其边界条件组成的控制方程。
