Structural Dynamic Analysis for the Natural Frequency of the Horn and Workpiece Combination

Abstract:

Article Preview

In order to find the vibration frequency when the workpiece obtains optimum vibration effect, the structural dynamic analysis were conducted in this paper, using finite element dynamic analysis methods on the horn and the workpiece combination. Through the vibration mode analysis, the resonant frequency of the horn and workpiece combination along the workpiece axial direction (y) is 20.845KHZ, along the x, z direction are respectively 22.373KHZ and 22.375KHZ, which are in the range of the ultrasonic generator frequency adjustment. Through the harmonic response analysis, the displacement amplitude in the big end of the horn is substantially equal, the displacement of each node on the symmetry axis of the horn increases firstly and then decreases along the axial, reaching the minimum at the wave node, and then gradually increases, reaching the maximum on the free end. The magnification is up to 18.84um, which can meet the requirements of ultrasonic vibration. In addition, it can be seen from the model graph of the workpiece thin segment that in the ultrasonic loading conditions, the thin segment of the workpiece at the middle position are mostly easy to break, which is consistent with the theoretical analysis. These findings and follow-up of test results are consistent, which proved the validity and reliability of software analysis.

Info:

Periodical:

Edited by:

Guanglin Wang, Huifeng Wang, Xiang Zhang, Bin Li, Dingfang Chen and Yuefeng Li

Pages:

293-296

DOI:

10.4028/www.scientific.net/KEM.522.293

Citation:

X. L. Cheng et al., "Structural Dynamic Analysis for the Natural Frequency of the Horn and Workpiece Combination", Key Engineering Materials, Vol. 522, pp. 293-296, 2012

Online since:

August 2012

Export:

Price:

$35.00

[1] J. Q: Study on mechanical property of 20# steel under ultrasonic vibration simple tension (MS., Henan Polytechnic University. China 2007 ), p.35.

[2] Z.M. Lin: Theory and Design of Ultrasonic horns[M](Beijing Science Publications, China 1987).

[3] Dubus B: Ultrasonics, Vol. 29 No. 5 (1991), pp.201-207.

[4] Amin.S. C: Journal of Materials Processing Technology, Vol. 55 No. 3(1995), pp.254-260.

[5] J.C. Y, X.F. W and K. H: Journal of Harbin Institute of Technology, Vol. 29 No. 4(1997), p.119.

[6] R. Y: Structure Mechanics Analysis using of ANSYS 6. 1. (Peking University Publications, China 2002).

In order to see related information, you need to Login.