Related Properties Of Torsion Bars

The stiffness of the torsion bar is determined by the material it is made of, the shaft, the diameter of the shaft, the length of the arm, and the angle it makes with the shaft. The longer the shaft length, the softer the stiffness, whereas the longer the arm length increases its stiffness. Limited by the width of the car, the length of the shaft can hardly be changed, but the diameter of the torsion bar and the length of the arm are relatively easy to adjust. Generally speaking, the materials of the torsion bar are similar, so the hardness of the torsion bar is changed by changing the diameter of the torsion bar.