VARIABLE STIFFNESS AND INSTANTANEOUS FREQUENCY

This paper presents a new variable stiffness control system, which can switch the stiffness continuously and smoothly. the new and innovative semi-active variable stiffness control (SAIVS) device and tests performed to study the effectiveness of the device are presented. A new control algorithm based on instantaneous frequency estimation using Hilbert transform is developed and implemented in real time digital signal processing system and controller. Shake table test results of a single degree of freedom system with SAIVS device is presented.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784404216
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Nagarajaiah, S
  • Nadathur, V
  • Sahasrabudhe, S
• Conference:
  • 1999 New Orleans Structures Congress
  • Location: New Orleans, Louisiana
  • Date: 1999-4-18 to 1999-4-21
• Publication Date: 1999

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 858-861

Subject/Index Terms

• TRT Terms: Algorithms; Control; Frequency (Electromagnetism); Real time data processing; Shaking table tests; Signal processing; Stiffness
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00778355
• Record Type: Publication
• ISBN: 0784404216
• Files: TRIS
• Created Date: Nov 11 1999 12:00AM