Method for improving simulation analysis precision of control arm under spring

The invention discloses a method for improving simulation analysis precision of a control arm under a spring, and belongs to the technical field of CAE simulation. Performing solid grid division on the lower control arm, the spring and the spring cushion; the divided three-dimensional entity grid is imported into the built suspension system model; defining the assembly and contact relationship between the control arm and the suspension system; defining equivalent stiffness, lining preload and material attributes of a damper channel; defining a preliminary constraint; performing assembly simulation of the spring and the spring cushion; performing compression simulation of the spring in the design state; checking a balance state result; simulating a strength working condition; and post-processing and evaluating the result. According to the method, by improving a modeling method and a simulation process near a hard point of the control arm spring, the calculation precision of the position of the matching surface