Centrifugal impeller boss crack propagation feature simulator design method
A centrifugal impeller and crack growth technology, applied in design optimization/simulation, computer-aided design, calculation, etc., can solve problems such as failure to perform fatigue crack growth test
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[0035] Embodiment 1, the present invention realizes steps as follows:
[0036] The first step is to obtain the geometric model of the centrifugal impeller, and measure the transition fillet radius and the radial length of the boss of the centrifugal impeller. The geometric model refers to the three-dimensional geometric model of the centrifugal impeller designed according to actual engineering requirements by means of computer-aided design software; the transition fillet radius refers to the radius of the transition fillet between the boss and the impeller; the boss radial The length refers to the radial length of the boss of the centrifugal impeller. For example, the transition fillet radius of a centrifugal impeller boss is 20mm, and the radial length is 4mm.
[0037] The second step is to obtain the working conditions of the centrifugal impeller and the material performance parameters under the working conditions. The operating conditions include the operating temperature...
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