The advantages of trailer single point suspension are light weight, reducing the impact on the body, and improving the ground adhesion of the wheels; The available soft spring stiffness of trailer single point suspension is small, which improves the driving smoothness of the vehicle; It can reduce the position of the engine and the center of gravity of the car, thus improving the driving stability of the car; Jumping alone at the wheel is irrelevant, which can reduce the inclination and vibration of the body. Here, we introduce the damage caused by a single point suspension.
1. Brittle fracture and ductile fracture
When parts of trailer single point suspension bear external load, elastic deformation occurs first. When the stress exceeds the elastic limit and continues to increase, and plastic deformation occurs, the stress exceeds the strength limit.
2. Residual stress
When the external load is loaded on the trailer single point suspension, the internal stress of the trailer is called the residual stress, which is caused by the external force. Residual stress can cause brittle fracture and plastic deformation of parts. This is particularly likely to occur in the cylinder block and transmission housing.
3. Stress concentration
If there is no geometry of continuous parts for trailer single point suspension, the actual stress near these parts is much higher than the nominal stress.
4. Fatigue fracture
The single point suspension of trailer divides the cracks into single load and repeated load according to the load characteristics of the parts. A part that is destroyed under static load or under load.
