The Modal Analysis of the Rotor of Electric Eddy Current Dynamometer Based on ADAMS

Abstract:

The performance of the rotor of the electric eddy current dynamometer has a great influence on the capability of the dynamometer. The stiffness and damping of the rotor can be obtained by analyzing its motion equation. And the critical speed can be achieved by getting the natural frequency and the vibration through ADAMS based on the theory of flexibility. Based on the machine design handbook, some proofs were provided by the conclusion that the speed of the rotor should be the range of the different critical speed of the modal in order to assure the safety and high efficiency of the dynamometer. Focused on the need for the design of the rotor, this method which solves the difficulties of the intensive calculation in the design and optimization of the dynamometer’s rotor is exact and effective.

• Periodical: Applied Mechanics and Materials (Volumes 226-228)
• Pages: 290-294
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.226-228.290
• Online since: November 2012
• Authors: Xiang Bi An, Da Wei Li, Hu Wang, Long Wang
• Keywords: Electric Eddy Current Dynamometer, Modal Analysis, Natural Frequency, Rotor

References

[1] An Xiang-bi etc. Detection and Diagnosis Technology of Automobile (2nd edition). Beijing Institute of Technology Press. P168(In Chinese)

[2] Qin Ran and Zhang Jianwei. The Compare of Methods to Solving the Critical Speed. Journal of Shenyang Institute of Chemical Technology.2007.03. P2(In Chinese)

[3] Zhu Haicang. The Simulation of Magnetic Bearings Based On Virtual Prototype Technology. MS. Wuhan University of Technology. Journal of Wuhan University of Technology. P17 (In Chinese)

[4] Chen Demin. Master the Virtual Prototype Technology of ADAMS2005/2007[M].Chemical Industry Press. (In Chinese)

[5] Machine Design Handbook(Vol. 1),6 Machine Vibration and Noise, Chapter 4 The Dynamic Characteristics of Mechanical System. China Machine Press. P6-84(In Chinese)

[6] Ki Beom Park, Ji Hun Joo, Jae Min Kim and Won Jee Chung. Analysis of Unbalance Effect for Super High-speed Spindle using ADAMS-based Flexible Body Modeling Technique and Spindle Error Analyzer Experiment. International Conference on Vibrations in Rotating Machinery; 20040907-09; Wales(GB).

DOI: 10.1109/iccas.2007.4406724