Experimental and Analytical Estimation of Damping
The system loss factor of sandwich panels with Constrained Layer Damping (CLD) treatment is estimated both experimentally and analytically using the Power Input/Injection Method (PIM) over a broad frequency range. Results of the experimental power input method are compared with results from other experimental methods. A new analytical power input method is proposed for evaluating the loss factor of built-up structures, based on a finite element model with assigned properties of the constituents. The analytical power input method is evaluated by comparison with the commonly used Modal Strain Energy (MSE) method. Results of experimental and analytical methods are presented, compared and discussed.
Power input method Vibration Constrained layer damping Loss factor Damping
Wanbo Liu Mark S. Ewing
1530 W15th ST Room 2120, University of Kansas, Lawrence, KS, 66045
国际会议
南京
英文
864-868
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）