【摘要】 利用一种高阶形函数的有限元方法 ,分析了高速运转下的螺旋槽端面密封的轴向微扰 ,得到了气体密封关于轴向微扰的一些动态特性参数 ,如密封的动态刚度和阻尼。计算了密封的一些稳态特性参数如密封开启力 ,静态刚度和泄漏量。分析了这些稳态和动态参数关于压缩因数和频率因数的变化关系更多还原

【Abstract】 An efficient and accurate finite element procedure was adopted to analyze axial perturbation of gas-lubricated spiral groove face seals operating at high speeds. The procedure is based on the Galerkin weighted residual method with a new class of high-order shape functions. Static and dynamic performance characteristics, such as the seal opening force, flow leakage, dynamic stiffness and the damping coefficients, were calculated for studying the effects of a series of parameters at high speeds on the behavior of spiral groove gas face seals.更多还原