Applications of the Automated SMAC Modal Parameter Extraction Package

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Description

An algorithm known as SMAC (Synthesize Modes And Correlate), based on principles of modal filtering, has been in development for a few years. The new capabilities of the automated version are demonstrated on test data from a complex shell/payload system. Examples of extractions from impact and shaker data are shown. The automated algorithm extracts 30 to 50 modes in the bandwidth from each column of the frequency response function matrix. Examples of the synthesized Mode Indicator Functions (MIFs) compared with the actual MIFs show the accuracy of the technique. A data set for one input and 170 accelerometer outputs can ... continued below

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7 p.

Creation Information

MAYES,RANDALL L.; DORRELL,LARRY R. & KLENKE,SCOTT E. October 29, 1999.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

An algorithm known as SMAC (Synthesize Modes And Correlate), based on principles of modal filtering, has been in development for a few years. The new capabilities of the automated version are demonstrated on test data from a complex shell/payload system. Examples of extractions from impact and shaker data are shown. The automated algorithm extracts 30 to 50 modes in the bandwidth from each column of the frequency response function matrix. Examples of the synthesized Mode Indicator Functions (MIFs) compared with the actual MIFs show the accuracy of the technique. A data set for one input and 170 accelerometer outputs can typically be reduced in an hour. Application to a test with some complex modes is also demonstrated.

Physical Description

7 p.

Notes

OSTI as DE00014841

Medium: P; Size: 7 pages

Source

  • IMAC Conference, San Antonio, TX (US), 02/07/2000--02/10/2000

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  • Report No.: SAND99-2866C
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 14841
  • Archival Resource Key: ark:/67531/metadc621139

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • October 29, 1999

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 3:07 p.m.

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MAYES,RANDALL L.; DORRELL,LARRY R. & KLENKE,SCOTT E. Applications of the Automated SMAC Modal Parameter Extraction Package, article, October 29, 1999; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc621139/: accessed December 13, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.