Research Papers

Active Absorption of Viscously Damped System With Time Delay

[+] Author and Article Information
Yitshak M. Ram

Department of Mechanical Engineering, Louisiana State University, Baton Rouge, LA 70803

Kumar Vikram Singh

Department of Mechanical and Manufacturing Engineering, Miami University, Oxford, OH 45056

J. Appl. Mech 75(5), 051005 (Jul 02, 2008) (4 pages) doi:10.1115/1.2936926 History: Received March 28, 2007; Revised March 31, 2008; Published July 02, 2008

In general, it is not possible to obtain total motion absorption of a certain degree of freedom in a harmonically excited damped system by passive control. This paper presents a method of obtaining total absorption in viscously damped system by active control, including time delay, which is unavoidable in digital controlled system. The control is applied on one degree of freedom and the absorption is achieved at another point. This study is carried out by both complex and real analyses. The necessary and sufficient condition for obtaining total absorption is given. Examples demonstrate the various results.

Copyright © 2008 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Figure 1

Illustrative systems

Grahic Jump Location
Figure 2

The actively controlled system of Example 1

Grahic Jump Location
Figure 3

Absolute values of the frequency response function at x3 for (a) the uncontrolled system and (b) the controlled one

Grahic Jump Location
Figure 4

The axially vibrating rod



Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In