... was used to simulate four unstable modes that can occur during the engagement process, and the Fourier reduction was applied to calculate the change in critical speed under these modes. Additionally, the influence of thermal physical parameters, including the elastic modulus, thermal expansion coefficient...

... critical speed In many industrial applications, mechanisms such as turbines or pumps are increasingly used under more and more severe conditions, including higher operating speeds, pressures, and loads, and as a result, bearing-associated problems...