Modal Participation Estimated from the Response Correlation Matrix

المؤلفون المشاركون

Amador, Sandro D. R.
Aenlle, Manuel L.
Brincker, Rune
Juul, Martin

المصدر

Shock and Vibration

العدد

المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-10، 10ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2019-08-28

دولة النشر

مصر

عدد الصفحات

10

التخصصات الرئيسية

هندسة مدنية

الملخص EN

In this paper, we are considering the case of estimating the modal participation vectors from the operating response of a structure.

Normally, this is done using a fitting technique either in the time domain using the correlation function matrix or in the frequency domain using the spectral density matrix.

In this paper, a more simple approach is proposed based on estimating the modal participation from the correlation matrix of the operating responses.

For the case of general damping, it is shown how the response correlation matrix is formed by the mode shape matrix and two transformation matrices T1 and T1 that contain information about the modal parameters, the generalized modal masses, and the input load spectral density matrix Gx.

For the case of real mode shapes, it is shown how the response correlation matrix can be given a simple analytical form where the corresponding real modal participation vectors can be obtained in a simple way.

Finally, it is shown how the real version of the modal participation vectors can be used to synthesize empirical spectral density functions.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Brincker, Rune& Amador, Sandro D. R.& Juul, Martin& Aenlle, Manuel L.. 2019. Modal Participation Estimated from the Response Correlation Matrix. Shock and Vibration،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1211699

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Brincker, Rune…[et al.]. Modal Participation Estimated from the Response Correlation Matrix. Shock and Vibration No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1211699

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Brincker, Rune& Amador, Sandro D. R.& Juul, Martin& Aenlle, Manuel L.. Modal Participation Estimated from the Response Correlation Matrix. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1211699

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-1211699