Accurate reconstruction of an interface point mobility matrix using the round-trip method.

Autor: McGee, Ramin, Elliott, Andrew, Meggitt, Joshua, Smith, John
Předmět:
Zdroj: INTER-NOISE & NOISE-CON Congress & Conference Proceedings; 2023, Vol. 265 Issue 1, p1-9, 9p
Abstrakt: The round-trip method enables the indirect determination of point mobilities along interfaces that cannot be easily excited. One embodiment of the method requires excitation at a subset of points either side of the interface, while responses are measured along it. This is typically done by instrumented hammer or shaker. In the present paper, we investigate the sensitivity of the round-trip method with respect to the number of remote measurement positions used, and the geometry of the structure. Numerical and experimental examples are provided which demonstrate that there exists an optimum number of excitation and response positions for the accurate reproduction of point FRFs. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index