Calculation method of fatigue life of shaft parts
A technology of fatigue life and calculation method, applied in the direction of calculation, special data processing applications, instruments, etc., to achieve the effect of excellent universality, reasonable structure design, and reduction of analysis time
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[0025] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] Such as figure 1 As shown, this embodiment provides a method for calculating the fatigue life of shaft parts, including the following steps:
[0027] a. Establish a finite element model and carry out mesh division, use 3D software to establish a solid model of the measured shaft part, convert the solid model of the measured shaft part into a finite element model, perform finite element mesh division, and use The local fine mesh method performs fine mesh division on the transition fillet;
[0028] b. Static analysis and calculation. After defining the material and constraint conditions of the measured shaft parts and applying the load, perform static analysis and calculation to obtain the node where the maximum stress occurs;
[0029] c. Calculate the fatigue crack initiation life, according to the simplified elastic-plastic theory an...
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