DOAJ Open Access 2023

Dynamic analysis of grinding electric spindle bearing-rotor system under eccentric action

Lianchao SHENG Qi SUN Guo YE Wei LI

Lihat Sumber DOI

Abstrak

To study the influence of eccentricity on the dynamic characteristics of grinding electric spindle, firstly, the nonlinear oil film force (NOFF) expression of sliding bearing is established based on the boundary condition of adhesion pressure. Then, the expression of the unbalanced magnetic pull (UMP) under the eccentricity of the air gap is derived. Finally, the bearing-rotor dynamics equation of the grinding electric spindle considering the NOFF and UMP is established, and the dimensionless processing is carried out. The nonlinear dynamics study of the bearing-rotor system under the influence of geometric eccentricity and mass eccentricity is carried out through the shaft center trajectory and the shaft center vibration spectrum. The research results can provide reference for the optimal design of grinding electric spindle.

Topik & Kata Kunci

Engineering machinery, tools, and implements Mechanical engineering and machinery

Penulis (4)

Lianchao SHENG

Qi SUN

Guo YE

Wei LI

Format Sitasi

APA MLA BibTeX

SHENG, L., SUN, Q., YE, G., LI, W. (2023). Dynamic analysis of grinding electric spindle bearing-rotor system under eccentric action. https://doi.org/10.1299/jamdsm.2023jamdsm0028

Akses Cepat

Lihat di Sumber doi.org/10.1299/jamdsm.2023jamdsm0028

Informasi Jurnal

Tahun Terbit: 2023
Sumber Database: DOAJ
DOI: 10.1299/jamdsm.2023jamdsm0028
Akses: Open Access ✓