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What factors will affect the life of the coupling diaphragm
The main influencing factors that determine the structural life are stress amplitude and average stress. The most influential factor is the value of the stress amplitude. The stress amplitude refers to the bending stress amplitude caused by the angular displacement of the dynamic stress.
Average stress refers to a combination of static stress, film stress, centrifugal stress, and axial deviation stress. Changes in speed and torque in actual work, and adjustments to installation errors will all have a significant impact on the actual life. In addition, the manufacturing defects of the diaphragm From the point of view of the stress value, the angular and axial installation deviation stress is much larger than the membrane stress and centrifugal stress caused by the working load. Therefore, the decisive factor affecting the fatigue life of the diaphragm is the additional stress caused by the installation deviation. During work, the installation accuracy of the diaphragm coupling should be improved as much as possible, that is, the axial displacement and the angular displacement should be reduced, and the working life of the diaphragm should be prolonged.
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