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Yee, K.S.; Chao, O.Z.; Kuan, K.K.; Ismail, Z.; Tong, C.W.; Noroozi, Siamak; Rahman, A.G.A. (2014)
Languages: English
Types: Article
In this study, the effectiveness of selecting a suitable analysis frequency range in impact force identification is highlighted. A methodology that utilizesOperating Deflection Shape (ODS) analysis, Modal Analysis (MA) and Modal Transformation Method (MTM) to evaluate the dynamic force in three cases of analysis frequency ranges was presented. These three cases are the overestimated, even-estimated, and under-estimated cases, which consist of higher, similar andlower analysis frequency range respectively, compared to the actual excitation frequency range. The performance of this approach was demonstrated via experiment. A Perspex plate with four ground supports was used as the automobile test rig. By measuring the acceleration response and Frequency Response Function (FRF) of the test rig, the time history of unknown force was recovered by the proposed method where the impact location was known in advance. It showed that the force identification result for even-estimated case falls within acceptable range while the force identification result for over-estimated and under-estimated cases isnot acceptable.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • [1] T. Lee and B. Kim, Vibration analysis of automobile tire due to bump impact, Applied Acoustics. 69 (2008), p. 473-478.
    • [2] J.-Y. Yoon and R. Singh, Estimation of interfacial forces in a multi-degree of freedom isolation system using a dynamic load sensing mount and quasi-linear models, Journal of Sound and Vibration. 330 (2011), p. 4429-4446.
    • [3] S.Y. Khoo, Z. Ismail, K.K. Kuan, Z.C. Ong, S. Noroozi, W.T. Chong and A.G.A. Rahman, Impact force identification with pseudo-inverse method on a lightweight structure for underdetermined, even-determined and over-determined cases, International Journal of Impact Engineering, 63 (2014) 52-62. doi: 10.1016/j.ijimpeng.2013.08.005.
    • [4] T. Otsuka, T. Okada, T. Ikeno, K. Shiomi and M. Okuma, Force identification of an outboard engine by experimental means of linear structural modeling and equivalent force transformation, Journal of Sound and Vibration. 308 (2007), p. 541-547.
    • [5] A. Cardi, D.E. Adams and S. Walsh. Ceramic body armor single impact force identification on a compliant torso using acceleration response mapping. Structural Health Monitoring. 5 (2006), p. 355-372. doi: 10.1177/1475921706067763.
    • [6] A.G.A. Rahman, S.Y. Khoo, Z. Ismail, W.T. Chong and S. Noroozi, Impact force identification by using modal transformation method for automobile test rig, in: 4th International Conference on Noise, Vibration and Comfort (NVC), Kuala Lumpur, Malaysia (2012).
    • [7] A.G.A. Rahman, S.Y. Khoo, Z. Ismail, W.T. Chong and S. Noroozi, Impact force identification by using modal transformation method in collocated and non-collocated cases, in: 2nd International Conference on Mechanical Engineering Research (ICMER), Kuala Lumpur, Malaysia (2013).
    • [8] W.G., Halvorsen and D.L. Brown, Impulse technique for structural frequency response testing, Sound and Vibration. 11 (1977), p. 8-21.
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