流固耦合的轴向可变增压器涡轮结构

Research on Turbine Structure of Vehicle Axial Adjustable Nozzle Turbocharger Based on Fluid-solid Coupling

以车用轴向调节式可变喷嘴增压器涡轮流场为研究对象,采用流固耦合的方法,研究高低速工况下在强度和振动方面进行涡轮结构分析。通过建立流固耦合分析平台,分析得到涡轮在高低速工况下应力分布情况、最大等效应力位置和各阶模态变化情况,为进一步增压器涡轮优化提供依据。

In order to research the turbine field of vehicle axial adjustable turbocharger,the equivalent stress and model of turbine in high and low speed condition was studied by the fluid-structure interaction method.Building the platform of turo fluid-structure interaction simulation in the Ansys-workenchbench software is used for analyzing the stress distribution,maximum equivalent stress location and different modes in high and low speed condition.The results supply the basis for a further optimization of the turbine structure.