基于ABAQUS的汽车轮毂模态分析

Modal Analysis of Wheel Hub Based on ABAQUS

以铝合金汽车轮毂为研究对象,本文首先通过ABAQUS软件对轮毂进行几何建模,然后对轮毂进行有限元模型建立,通过静力学分析得到其最大应力为213MPa,符合铝合金性能要求,最后运用模态分析模块得到整车的固有频率及振型,计算分析结果表明轮毂结构的固有频率能有效避开各种激励频率,避免反生共振,验证其设计合理性。

Taking the aluminum alloy wheel hub as the research object,this paper firstly uses ABAQUS software to geometrically model the wheel hub,and then sets up the finite element model of the wheel hub.Through static analysis,the maximum stress is 213 MPa,which meets the aluminum alloy performance requirements,and finally uses the mold.The state analysis module obtains the natural frequency and mode shape of the whole vehicle.The calculation and analysis results show that the natural frequency of the hub structure can effectively avoid various excitation frequencies,avoid the anti-resonance,and verify the rationality of its design.