| URN |
etd-0513120-110754 |
Statistics |
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|
| Author |
Tsung-Hsuan You |
| Author's Email Address |
shienhtc@gmail.com |
| Department |
Institute Of Mechanical Engineering |
| Year |
2019 |
Semester |
2 |
| Degree |
Master |
Type of Document |
Master's Thesis |
| Language |
zh-TW.Big5 Chinese |
Page Count |
101 |
| Title |
Tolerance Analysis and Design for the Correlation Between Modal Analysis and Experiment - A Case Study of Ventilated Brake Discs |
| Keyword |
Archimedes' principle
Tolerance analysis
Modal experiment
Modal analysis
Ventilated brake disc
Ventilated brake disc
Modal analysis
Modal experiment
Tolerance analysis
Archimedes' principle
|
| Abstract |
In this study, the unknown materials of automotive parts were assessed using modal experiments and finite element analysis. The material properties such as density, Young¡¦s modulus and Poisson¡¦s ratio were also obtained and the effects of the variations of these properties to the modal analysis results investigated. Solid models of ventilated brake discs, the subject studied in this thesis, were created using the modeling software of Creo Parametric and then exported to Ansys Workbench for finite element analysis. In addition, modal testing experiments were conducted on the brake discs with an impact hammer, accelerometer and a spectral analyzer. The mode shapes and natural frequencies from both the analysis and the experiments were compared and then examined using Excel. In this study, we established an easier method to measure the density of the cast iron brake discs. Further, a methodology was conceived and realized to place reasonable manufacturing tolerances on the brake discs and the effects of these tolerances to the modal frequencies was investigated through simulation. Finally, the accumulated tolerance method and Excel were used to systematically acquire a more reasonable tolerance range for the correlation of the measured and the predicted natural frequencies. |
| Advisor Committee |
Kun-Nan Chen - advisor
none - co-chair
none - co-chair
|
| Files |
indicate access worldwide |
| Date of Defense |
2020-05-04 |
Date of Submission |
2020-05-13 |
