Design method of torsion tube length for external offset non-coaxial cab stabilizer bar

Abstract

The invention relates to a design method for the length of a torsion tube of an external offset non-coaxial cab stabilizer bar, and belongs to the technical field of cab suspension. The present invention takes the length of the torsion tube as a parameter, uses the load coefficient expression of the torsion rubber bushing, the equivalent combination line stiffness expression of the rubber bushing, and the equivalent line stiffness expression of the torsion tube to establish the torsion tube of the stabilizer bar Design the mathematical model of the length, and solve the design through the Matlab program. Through the design example and ANSYS simulation verification, it can be seen that the method can obtain accurate and reliable design value of the torsion tube length, which provides a reliable technical basis for the design of the stabilizer bar system and the development of CAD software. Using this method, the design level and quality of the stabilizer bar system can be improved only by adjusting the length of the torsion tube without increasing the product cost, and the design requirements of the roll angle stiffness of the stabilizer bar system can be met, and the ride comfort and performance of the vehicle can be improved. Safety; at the same time, design and test costs can also be reduced.

Description

technical field

[0001] The invention relates to a vehicle cab suspension, in particular to a design method for the length of a torsion tube of an externally offset non-coaxial cab stabilizer bar. Background technique

[0002] The length of the torsion tube of the stabilizer bar system not only affects the torsional deformation and bending deformation of the torsion tube, the load and deformation of the torsional rubber bushing, but also has an important influence on the stiffness characteristics of the cab stabilizer bar system. In the actual design of the stabilizer bar system, the design requirements of the roll angle stiffness of the cab stabilizer bar system are often achieved only by designing the length of the torsion tube while keeping other structural parameters unchanged. However, due to the constraints of the calculation of the stiffness of the rubber bushing, the bending and torsion of the external offset torsion tube, and the mutual coupling of loads, the design ...

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