Finite element analysis of inertial load of the statically indeterminate rotor stay bearing

Afinite element by coupling plane stress element with Fourier ring element was used in the calculation of the inertial load of the statically indeterminate rotor stay bearing.This settled two flaws in classical material mechanics,which made it difficult to establish correct deformation compatibility condition when the coupling stiffness of support and shaft bearing could not be ignored,and,bigger error in using beam theory was likely caused in the case of absence of shaft character for the rotor.At the same time,because this method transforms the complex three-dimensional question into two-dimensional question,the workload of calculation is smaller,calculating time is shorter,precision and efficiency is higher.