FORCED DAMPED MODES OF VIBRATION OF FABRICATED UNIT STRUCTURES

Employing a method of vibration testing due to Kennedy and Pancu, with elementary extensions, a study has been made of forced damped modes of vibration of unit fabricated structures. The method is suitable for the unit structure approach to fabrication and provides a means of manufacturing and assessing the dynamic behaviour of a structure at the design stage. Theoretical and practical procedures associated with the tests are discussed and response vector diagrams and mode shape diagrams are presented for the third bending mode of vibration of single and combined unit structures. The existence and accuracy of damped modes of vibration are considered. Test results indicate that by applying this vibration-testing method, approximate forced damped modes of vibration of unit structures are uncovered. The dynamic characteristics of these modes will be suitable for use in design and development studies. Order from: BSRA as No. 46,866.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00392103
• Corporate Authors:

  British Society for Strain Measurements

  281 Heaton Road
  Newcastle-Upon-Tyne, NE6 5QB,   England 
• Authors:
  • BARRON, R
• Publication Date: 1977-4

Media Info

• Features: References;
• Pagination: 8 p.
• Serial:
  • Strain
  • Volume: 13
  • Publisher: British Society for Strain Measurements
  • ISSN: 0039-2103

Subject/Index Terms

• TRT Terms: Damping (Physics); Dynamic loads; Structural design; Vibration
• Uncontrolled Terms: Dynamic response
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00170040
• Record Type: Publication
• Source Agency: British Ship Research Association
• Files: TRIS
• Created Date: Feb 16 1978 12:00AM