OPTIMAL SENSOR PLACEMENT FOR MODE SHAPES VIA SHANNON'S SAMPLING THEOREM

The feasibility of using Shannon's sampling theorem to reconstruct exact mode shapes of a structural system from a limited number of sampling points is investigated. Shannon's sampling theorem for the time domain is reviewed. The theorem is then extended to the spatial domain. Mode shapes are reconstructed from a limited amount of data, and the reconstructed mode shapes are compared with the exact mode shapes. On the basis of the results, simple rules are proposed for the placement of accelerometers in modal parameter extraction experiments. The feasibility of applying the rules and the extended Shannon's theorem to damage localization in a simple structure is demonstrated.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08859507
• Corporate Authors:

  Blackwell Publishing

  350 Main Street
  Malden, MA  United States  02148
• Authors:
  • Stubbs, N
  • Park, Su Han
• Publication Date: 1996-11

Language

• English

Media Info

• Pagination: p. 411-419
• Serial:
  • Microcomputers in Civil Engineering
  • Volume: 11
  • Issue Number: 6
  • Publisher: Blackwell Publishing
  • ISSN: 0885-9507

Subject/Index Terms

• TRT Terms: Accelerometers; Loss and damage; Mode S; Sampling; Sensors; Structural tests
• Uncontrolled Terms: Structural testing
• Old TRIS Terms: Damage patterns
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00726792
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 2 1996 12:00AM