DYNAMIC ANALYSIS OF TOOL HOLDER WITH DAMPING ESTIMATION | ||||
| ERJ. Engineering Research Journal | ||||
| Article 8, Volume 37, Issue 2, April 2014, Page 221-228 PDF (877.8 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2014.66909 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| F.R. Gomaa | ||||
| Faculty of Engineering ,Menoufia University. | ||||
| Abstract | ||||
| This paper presents a new approach to design tool holder subjected to dynamic loads. The aim of this paper is to estimate damping based on experimental and simulated data with high degrees of freedom. Accurate damping ratios were extracted using modal damping based on fitting exponential decays plus subspace model. The data is collected through three fixed accelerometers and one moving, and simulated data using ANSYS. To validate the proposed model impulse excitation plus random excitation were used to fulfill the criteria of output only measurement .The damping matrix was calculated using measured damping ratios to simplify the damping estimation and save time. The main advantage is the degree of accuracy used with respect to the complex mode. This method can be used in higher order frequency and complex structure. | ||||
| Keywords | ||||
| Damping identification; Enhanced frequency domain decomposition; Stochastic subspace identification; Damping measurement and Vibration of tool holder | ||||
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