Finite Element Analysis of Frame Structures Under External Load Conditions
By taking the frame structure of a catenary parameter measurement equipment as the analysis object,the three-dimensional software was used to establish a solid three-dimensional model,and the statics analysis of the car body frame under external load was carried out through ANSYS,to explore the force characteristics of the car body frame under external load.Through statics analysis,it was known that the selection of car body frame met the design requirements of strength and stiffness.Finally,based on the actual loading situation of the structure,modal analysis was conducted on the vehicle body frame under pre-stressed conditions.Through the cloud diagram analysis of the first six vibration modes,the low-order natural frequency range of the car body frame structure is obtained,which provides a reference for the selection of the drive motor and the further optimization of the structure.