【摘要】 基于轴颈径向振动情况的挤压油膜阻尼器(SFD)长轴承模型,结合Navier-Stokes(N-S)方程,通过推导油膜惯性速度分布,求解并用数值法验证了油膜压力分布模型.模型的分析结果揭示了油膜径向力反演特性,据此提出了SFD同步压力响应设计准则,并分析了满足此准则的SFD设计参数之间的关系,可为深入研究油膜动力特性和SFD转-子系统动态设计奠定基础。更多还原

【Abstract】 A method of pressure distribution for long squeeze film damper(SFD) is gained via elaborating oil film inertia velocity distribution based on Navier-Stokes equations,and is validated by numerical method.The analysis result from the model shows the reversion behavior of oil film radial force.A design rule of synchro-response for SFD is put forward,and the relationship between parameters satisfying the rule is given.The design provides the basis for further investigation on oil film dynamic behavior and rotor system dynamic design.更多还原