Method for checking twisted pipe stress intensity of inner biased non-coaxial type cab stabilizer bar

Abstract

The invention relates to a method for checking twisted pipe stress intensity of an inner biased non-coaxial type cab stabilizer bar and belongs to the technical field of vehicle cab suspension. According to an inner biased non-coaxial type cab stabilizer bar system and structure parameters and material characteristic parameters of a twisted pipe, the bending load coefficient of the twisted pipe is established by utilizing the relations of twisted pipe bending, torsional deflection and load, and the method for checking twisted pipe stress intensity of the inner biased non-coaxial type cab stabilizer bar is established through bending normal stress and torsional shear stress. As can be known through example calculation and ANSYS simulation verification, the accurate and reliable twisted pipe stress intensity calculation value of the inner biased non-coaxial type cab stabilizer bar can be obtained through the method, and a reliable stress verifying calculation method is provided for the design of the cab stabilizer bar system. The method can improve the design level, quality and performance of the cab stabilizer bar system and improve vehicle running smoothness and safety; and the design and testing expense can be reduced.

Description

technical field [0001] The invention relates to a vehicle cab suspension, in particular to a method for checking the torsion tube stress strength of an internal offset non-coaxial cab stabilizer bar. Background technique [0002] Due to the constraints of key issues such as the torsion and bending deformation of the torsion tube and the mutual coupling between loads, a reliable method for checking the stress intensity of the torsion tube has not been given for the internal offset non-coaxial cab stabilizer bar system. At present, most of the stress strength checks of the cab stabilizer bar system at home and abroad use ANSYS simulation software to simulate and analyze the stress strength of the torsion tube through solid modeling. Although this method can obtain relatively reliable simulation values, however, due to Can not provide accurate analytical calculation formula, therefore, can not meet the cab stabilizer bar system analytical design and CAD software development req...

AI Technical Summary

Problems solved by technology

[0002] Due to the constraints of key issues such as the torsion and bending deformation of the torsion tube and the mutual coupling between loads, a reliable method for checking the stress intensity of the torsion tube has not been given for the internal offset non-coaxial cab stabilizer bar system.

At present, most of the stress strength checks of the cab stabilizer bar system at home and abroad use ANSYS simulation software to simulate and analyze the stress strength of the torsion tube through solid modeling. Although this method can obtain relatively reliable simulation values, however, due to Can not provide accurate analytical calculation formula, therefore, can not meet the cab stabilizer bar system analytical design and CAD software development requirements

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