Ambient Response Modal Analysis on a CEM-1 Single-Layer Printed Circuit Board

Abstract:

Since the level of vibration always depends on the natural frequencies of the system, it is important to know the modal parameters of such system to control failure and provide prevention actions. The demand for structurally reliable Printed Circuit Boards (PCB) has increased as more functions are required from electronic products along with less weight and smaller size. This imposes certain limitations and critical requirements. In this paper, investigation on the dynamic characteristics of CEM-1 Single-layer PCB using Operational Modal Analysis (OMA, or often called Output-Only or Ambient Modal analysis), is presented. The Frequency Domain Decomposition (FDD) and Enhanced Frequency Domain Decomposition (EFDD) techniques are applied on the PCB with free-free end condition. Comparison of results between both techniques and also with the result from Experimental Modal Analysis (EMA), will be shown. The understanding on dynamic behaviour of this structure provides valuable insight into the nature of the response and remarkable enhancement of its model, strength and vibration.

• Periodical: Applied Mechanics and Materials (Volume 393)
• Pages: 683-687
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.393.683
• Online since: September 2013
• Authors: M. Azhan Anuar, A.A. Mat Isa, A.R. Zamri, M.F.M. Said
• Keywords: Dynamic Characteristic, Modal Analysis, Printed Circuit Board (PCB)

References

[1] Robin Alastair Amya, G.S. Agliettia, Guy Richardson, Simplified Modeling of Printed Circuit Boards (PCB) for Spacecraft Applications, (Dec 2006), Astronautical Research Group, School of Engineering Sciences, University of Southampton.

[2] Ying-Chih Lee, Bor-Tsuen Wang, Yi-Shao Lai, Chang-Lin Yeh, Rong-Sheng Chen, Finite element model verification for packaged printed circuit board by experimental modal analysis, Microelectronics Reliability, Volume 48, Issues 11–12, November–December 2008, Pages 1837-1846.

DOI: 10.1016/j.microrel.2008.07.068

[3] M.A. Anuar, A.A. Mat Isa, Ummi Z.A. R, Modal Characteristics Study of CEM-1 Single-Layer Printed Circuit Board Using Experimental Modal Analysis, Journal of Procedia Engineering, Elsevier, pp.1360-1366, Vol. 41(2012).

DOI: 10.1016/j.proeng.2012.07.322

[4] D.J. Ewins, Modal Testing: Theory and Practice, 2nd ed. Letchworth, Hertfordshire, England: Research Studies Press LTD, (1986).

[5] Mehdi Batel, Operational Modal Analysis – Another Way of Doing Modal Testing, Sound and Vibration Magazine, (2002).

[6] Rune Brincker, Carlos E. Ventura and Palle Andersen, Why Output-Only Modal Testing is a Desirable Tool for a Wide Range of Practical Applications, in International modal analysis conference (IMAC-XXI) , Kissimmee, Fla, (2003), p.1–8.

[7] R. Brincker, L. Zhang and P. Andersen, Modal Identification from Ambient responses using Frequency Domain Decomposition, in International Modal Analysis Conference (IMAC), San Antonio, Texas, (2000).

[8] Rune Brincker, Special issue on Operational Modal Analysis, Mechanical Systems and Signal Processing, vol. 24, no. 5, pp.1209-1212, ( 2010).

DOI: 10.1016/j.ymssp.2010.03.005

[9] L. Zhang, R. Brincker and P. Anderson, An overview of operational modal analysis: Major development and issues, in IOMAC, Copenhagen, (2005).

[10] Mehdi Batel, Svend Gade, Nis Møller and Henrik Herlufsen, Ambient Response Modal Analysis on a plate structure, in International Modal Analysis Conference (IMAC), Florida, (2003).