My research group deals with rotors (a technical term of “round objects rotating about a fixed axis”) and vibration of structures. In particular, we are working on the following aspects (Please consult my research group site for a more detailed description):
Improve machine tool spindles based on coupled mechanical-thermal analysis
Identify dynamic behaviour (e.g. natural frequencies) and physical parameters (e.g. stiffness) of machines, both by improved experiment design and novel signal processing techniques that are more robust than current methods.
Seek efficient methods of constructing accurate computer models
Design structures that have specific dynamic behaviour
Our work mainly applies to precision manufacturing and machine tool design, but we have worked on car bodies, wind turbines and even non-Newtonian fluid!
含不確定參數的轉動結構之振動分析 NSC 102-2218-E-005-006-MY2
準確估算參數之自動模態參數辨識 NSC 105-2221-E-005-030-MY2
機器關鍵組件之線性及非線性模型改良 MOST 108-2221-E-005-053
機器內數種介面之非線性動態建模 MOST 110-2221-E-005-074-
組合結構非線性結構動態模型之建立 MOST 111-2221-E-005-052-MY2
含指定非線性元件組合結構動態特性之參數建模及預測 NSTC 113-2221-E-005-048-
具非常靠近自然頻率及非線性結構之振動特性及其辨識 NSTC 114-2221-E-005-070-
[1] Lo, YC., Chan, Y. J., "Modelling and System Identification of Nonlinear Longitudinal Dynamics of a Linear Guideway", CIRP Journal of Manufacturing Science and Technology, accepted for publication.
[2] Lo, YC., Chan, Y. J., "Nonlinear Longitudinal Dynamic of Linear Guideways : Parameter Identification Across Types and Configurations," Exp Mech (2026). https://doi.org/10.1007/s11340-026-01349-4
[3] Yang, KA., Nguyen, T., Chen, YJ., Chan, YJ, and Lin, M.T., "Effect of Magnetron Sputtering Power on the Microstructure and Internal Friction Behavior of Zr-Cu-Ti Metallic Glass Film". Exp Mech (2026). https://doi.org/10.1007/s11340-026-01366-3
[4] Z.-J. Gao, C.-S. Lin, W.-F. Liang, Y.-L. Tsai, and Y. J. Chan, “Parameter selection for using parametric array loudspeakers as excitation source at selected points,” Exp. Mech. (2026), doi: 10.1007/s11340-026-01362-7.
[5] I.-J. Huang, T.-Y. Tseng, and Y. J. Chan, “Linearised modelling and nonlinear dynamic properties of bolted assemblies with machined surfaces,” Mech. Syst. Signal Process., vol. 253, Art. no. 114287, 2026, doi: 10.1016/j.ymssp.2026.114287.
[6] G.-S. Li and Y. J. Chan, “Visual investigation of static contact conditions at bolted joints,” Int. J. Solids Struct., vol. 288, Art. no. 112621, 2024, doi: 10.1016/j.ijsolstr.2023.112621.
[7] L.-C. Tung and Y. J. Chan, “A time-variant dynamic model for compound epicyclic–cycloidal reducers,” Mech. Mach. Theory, vol. 179, Art. no. 105095, 2023, doi: 10.1016/j.mechmachtheory.2022.105095.
1. Wei-Ting Liao, H.G.D. Goyder, Yum Ji Chan (2025, Oct). Effect of modal interaction on Close-mode Nonlinear Structures. International Conference for Acoustic and Vibration Engineers, 匈牙利 Balatonalmádi.
2. Zi-Jie Gao and Yum Ji Chan (2025, Oct). Optimization of parameters for Parametric Array Loudspeakers to achieve the acoustics excitation on selected point. 2025 International Symposium on Experimental Mechanics, 台中市.
3. Yu Chen, Yum Ji Chan (2025, Aug). Modeling of Nonlinearity of Bolted Structures with Bilinear Stiffness Model. Tribomechadynamics 2025, 德國斯圖加特.
4. 趙清煬、賴浩平、陳任之 (2024, Nov). Experimental Modal Analysis on Feed Drive Systems . 中國機械工程學會113年度年會暨第41屆全國學術研討會 , 高雄市.
5. Yi-Chun Lo, Yum Ji Chan (2024, Sep). Testing and modelling of nonlinear dynamic behavior of linear guideways. International Conference on Noise and Vibration Engineering,
6. Sheng-Wei Tseng, Hugh Goyder, Yum Ji Chan (2024, Jul). Application of Nonlinear Curve Fitting to Symmetrical Component Structure. 中華民國振動與噪音工程學會第31屆學術研討會.
7. Xiang En Huang, Yum Ji Chan , Yi Lin Tsai (2024, Jul). Validation of the Improvement of Blade Damping by Ring Damper. 中華民國振動與噪音工程學會第31屆學術研討會, 台中市.
8. Sheng-Wei Tseng, Hugh Goyder, Yum Ji Chan (2024, Jan). Amplitude-dependent Modal Parameter Identification on Multiple-Output Structures with Close Natural Frequencies . International Modal Analysis Conference XLII, 美國佛州奧蘭多. NSTC 111-2221-E-005-052-MY2. 本人為通訊作者.
9. Chuan-Hsing Lin, Xiang-En Huang, Yu-Lin Tsai, Yum Ji Chan (2023, Dec). Improvement of Acoustic Directivity of Non-Contact Excitation In Experimental Modal Analysis. 中國機械工程學會第四十屆全國學術研討會, 彰化市. 本人為通訊作者.
10. Yum-Ji Chan, Ching-Yong Chao (2023, Nov). Improvement of teaching strategies on theoretical and experimental structural dynamics. 中華民國力學學會第四十七屆全國力學會議, 雲林縣虎尾鎮. 本人為第一作者、通訊作者.
11. Yum-Ji Chan, Hsin-Yuan Wang (2023, Nov). Effect of Uncertain Dimensions on Motion Precision in mechanisms. 中華民國力學學會第四十七屆全國力學會議, 雲林縣虎尾鎮. 本人為第一作者、通訊作者.
12. Cyuan-Sing Lin, Yum Ji Chan (2023, Jul). Acoustic-Super-Laser: Enhancement of Directivity of Parametric Array Loudspeaker Array and Its Application to Experimental Modal Analysis. International Conference on Sound and Vibration. Prague, Czech Republic. 本人為通訊作者.
13. Meng-Huan Hsieh, and Yum-Ji Chan (2023, Feb). Quantification of Amplitude- and Rotation Speed-dependent Nonlinearity of Machine Tool Spindles. 國際模態分析會議, 美國奧斯汀. NSTC 111-2221-E-005-052-MY2. 本人為通訊作者.
14. Jian-Fu Du and Yum Ji Chan (2022, Jul). Variation of Lateral Nonlinear Stiffness of Sliding Block. 中華民國振動與噪音工程學會第29屆學術研討會, 線上研討會. 本人為通訊作者.
15. Zhen-Wah Chew and Yum-Ji Chan (2021, Aug). Visualization of true contact condition of receding contacts with transparent materials. Tribomechadynamics 2021, Online.
16. Bo-Cheng Su, Yum Ji Chan (2021, Jul). Non-contact spindle stiffness measurement system and magnetic field analysis. 中華民國振動與噪音工程學會第28屆學術研討會, Online.
17. Yu-Bin Chao and Yum-Ji Chan (2021, Jul). Non-contact Excitation for the estimation of Frequency Response Function of Machine Tool Spindle. 中華民國振動與噪音工程學會第28屆學術研討會, Online.