针对专用车边梁式车架进行了有限元模态分析，运用Unigraphics软件建立了边梁式车架的三维模型，导入

ANSYS软件并对其进行了模态分析，得到了车架的固有频率及振型特征，使汽车的结构在设计中尽量避免产生共振和

噪声，为实际模态试验提供了参考和依据。-For dedicated car side Beam Frame finite element modal analysis using Unigraphics software to create a three-dimensional model of the edge beam frame, into ANSYS software and its modal analysis, the natural frequency of the frame and the modes characteristic structure, making the car design avoid resonance and noise, and provide reference and basis for the actual modal test.