Simulation Research on Control Method of Chassis Misuse Failure Chain

With the increase of chassis lightweight designs, the possibility of chassis structure failure is increasing. The small probability misuse events such as driving through a deep pothole at high-speed, striking a curb on icy road occur frequently. Anti-misuse structure design has become the key path of design. Vehicle prototype misuse test involve the problem extremely cost-intensive and time-consuming modification and validation loops at the development process. In this paper, the vehicle virtual misuse test method was used to study the misuse load, and then based on the load, and the forward control method of chassis failure chain is studied. Through the simulation of chassis deformation, fracture and other behaviors, the failure chain of the chassis was controlled to prevent hidden damage and over-design, which greatly reduces the risk of the structural design and is beneficial to the lightweight of the structure.