Method for designing length of torsion pipe of external biasing non-coaxial cab stabilizer bar

Abstract

The invention relates to a method for designing the length of a torsion pipe of an external biasing non-coaxial cab stabilizer, which belongs to the technical field of the cab suspension. The length of the torsion pipe is adopted as a parameter, a torsion pipe length design mathematic model of the stabilizer bar is established by utilizing a load coefficient expression of a torsion rubber bushing, an equivalent combined linear rigidness expression of the rubber bushing and an equivalent linear rigidness expression of the torsion pipe, and the torsion pipe length design mathematic model is solved by utilizing a Matlab program. By adopting the method, an accurate and reliable torsion pipe length design value can be acquired by virtue of a design example and the ANSYS simulation verification, and a reliable technical foundation can be provided for the design of the stabilizer bar system and the development of the CAD software. By utilizing the method, on the premise of not increasing the product cost, not only can the design level and design quality of the stabilizer bar system be improved by virtue of adjustable design of the torsion pipe length, but also the design requirement of the roll angle rigidness of the stabilizer bar system can be met, and the driving smoothness and safety of a vehicle can be improved; meanwhile, the design and experiment expense also can 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 ...

AI Technical Summary

Problems solved by technology

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 of the length of the torsion tube for the external offset non-coaxial cab stabilizer bar system, Has not been able to give a reliable analytical design method

At present, most of the design of cab stabilizer bar system at home and abroad is to use ANSYS simulation software to simulate and verify the characteristics of the cab stabilizer bar system with a given structure through solid modeling, although this method can obtain relatively reliable simulation values. However, since the ANSYS simulation analysis can only verify the stabilizer bar with given parameters, it cannot provide an accurate analytical design formula, and cannot meet the requirements of analytical design and CAD software development of the cab stabilizer bar system

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