How do the bending and torsional stiffness of a shaft affect the performance of a mechanical system?

The bending and torsional stiffness of the shaft is critical to the performance of the mechanical system. They refer to the deformation and deformation resistance of the shaft when subjected to external loads, which directly affect the stability, accuracy, transmission efficiency, dynamic response characteristics, safety and user experience of the system.

Insufficient bending and torsional stiffness can cause excessive shaft deformation, affecting system stability and accuracy. When the system is in operation, if the shaft cannot effectively resist the bending and torsion caused by external loads, it will cause deformation of the shaft, which will affect the position and movement trajectory of the mechanical components, reduce the movement accuracy of the system, and even cause the movement of moving parts. friction and stagnation.

A shaft with insufficient bending and torsional stiffness can cause the system to vibrate, oscillate, or become unstable during high-speed motion or frequently changing loads. This kind of vibration and instability will affect the stability and reliability of the mechanical system, reduce the efficiency of the system, and even endanger the safety of equipment and personnel.

Insufficient bending and torsional stiffness can also increase the vibration and noise levels of mechanical systems, affecting the quality of the working environment and user experience. Excessive vibration and noise will not only affect the health and comfort of workers, but may also cause damage and failure of mechanical equipment, thereby affecting production efficiency and quality.