Journals
Publish with us
Publishing partnerships
About us
Blog
Mathematical Problems in Engineering
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Mathematical Problems in Engineering
/
2020
/
Article
/
Fig 9
/
Research Article
Mathematical Modeling and Dynamic Analysis of Planetary Gears System with Time-Varying Parameters
Figure 9
Spectrum diagram of sun gear. (a) Spectrum of healthy signal. (b) Spectrum refinement of healthy signals.
(a)
(b)