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Extraction of real modes and physical matrices from modal testing

Extraction of real modes and physical matrices from modal testing
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摘要 A technique to extract real modes from the identified complex modes is presented in this paper, which enables the normalized real mode shapes, modal masses, and full or reduced mass and stiffness matrices to be obtained. The theoretical derivation of the method is provided in detail. An 11-DOF vibration system is used to validate the algorithm, and to analyze the effects of the number of modes utilized and measurement DOFs on the extraction results. Finally, the method is used to extract real modes from both experimental modal analysis and operational modal analysis. A technique to extract real modes from the identified complex modes is presented in this paper, which enables the normalized real mode shapes, modal masses, and full or reduced mass and stiffness matrices to be obtained. The theoretical derivation of the method is provided in detail. An 11-DOF vibration system is used to validate the algorithm, and to analyze the effects of the number of modes utilized and measurement DOFs on the extraction results. Finally, the method is used to extract real modes from both experimental modal analysis and operational modal analysis.
作者 Wang Tong Zhang Lingmi Tee Kong Fah
机构地区 MOE Key Lab of Structural Mechanics and Control for Aircraft Department of Civil Engineering
出处 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2011年第2期219-227,共9页 地震工程与工程振动（英文刊）
基金 NUAA Research Funding Under Grant No. V1022-013
关键词 modal analysis complex mode real mode normalized mode shape modal mass modal analysis complex mode real mode normalized mode shape modal mass
分类号 O329 [理学—一般力学与力学基础] TU311 [建筑科学—结构工程]
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  • 1[1]Richardson M H, Formenti D L. Parameter estimation from frequency response measurements using rational fraction polynomials[A]. In: Proceeding of 1st International Modal Analysis Conference[C]. Orlando, FL, USA, 1982: 167-181.
  • 2[2]Richardson M H, Formenti D L. Global curve fitting of frequency response measurements using the rational fraction polynomial method[A]. In: Proceeding of 3rd International Modal Analysis Conference [C]. Orland, FL, USA, 1985. 390-397.
  • 3[3]Richardson M H. Global frequency & damping estimates from frequency response measurements[A]. In: Proceeding of 4th International Modal Analysis Conference [C]. Los Angeles, CA, USA, 1986. 465-470.
  • 4[4]Zhang L M, Kanda H, Brown D, et al. A polyreference frequency domain method for modal parameter identification[A]. In: ASME Design Engineering Division Conference[C]. Cincinnati, Ohio, USA, 1985. 85-DET-106.
  • 5[5]Shih C Y, Tsuei Y G, Allemang R J, et al. A frequency domain global parameter estimation method for multiple reference frequency response measurements[J]. Mechanical System and Signal Processing, 1988, 2(4): 349-365.
  • 6He J M,Fu Z F.Modal Analysis[M].Oxford,England:Butterworth-Heinemann, 2001.
  • 7Ewins D J.Modal Testing: Theory, Practice and Application[M].Hertfordshire England:Research Studies Press Limited,1999.
  • 8Silva J M,Maia N M.Theoretical and Experimental Modal Analysis[M].Hertfordshire England:Research Studies Press Limited,1998.
  • 9Hasselman T K, Chrostowski J D, Pappa R.Estimation of full modal damping matrices from complex test modes[A].In:The 34th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference[C].La Jolla, CA, USA,1993,3388-3394.
  • 10Gladwell G M L.On the reconstruction of a damped vibrating system from two complex spectra-Part 1: Theory[J].J Sound Vibration,2001,240(2):203-217.

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Earthquake Engineering and Engineering Vibration
2011年 第2期

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