Structural strength

Structural strength refers to the property of the structure to resist fracture, that is, the structural member can meet the safety regulations under the external load of various use cases. Generalized structural strengths include strength, stiffness, stability, durability, damage tolerance, integrity, reliability, and environmental resistance.

For centrifugal pumps, the structure strength of the pump components is extremely important. 

Take shaft for instance. In operation, the pump shaft, in addition to withstanding the torque, also withstands the radial forces generated by the vortex chamber, the rotor's own weight, and the centrifugal force caused by the imbalance, which forces the shaft to bend. Therefore, after the structural design is completed, the shaft is subjected to strength check and stiffness check.