Development of characteristic simulation software based on Qt GUI for automobile's fewer piece variable cross-section leaf spring
In order to meet the demand for digital manufacturing of automobile's fewer piece leaf spring, an characteristic simulation software of automobile's fewer piece variable cross-section leaf spring has been developed based on Qt. According to the mechanical model of fewer piece variable cross-section leaf spring and using Maurs integral, the mathematical model of its stiffness has been established. According to the relationship between the bending moment of the leaf spring and its bending section
... its bending section coefficient, a mathematical model of stress at any position of the fewer piece variable cross-section leaf spring has been established. On this basis, Qt has been selected as the framework for software GUI interface development, and the design method of drawing characteristic curve by QCustomPlot graphics library has been used to complete the software function development task. Finally, the software is used for example design, and the maximum relative deviation between its software simulation result and ANSYS simulation value is only 0.77%. It shows the reliability and accuracy of this software and its mathematical model. This has practical promotion value for the digital design of fewer leaf springs.