Compensation of frequency response function measurements by inverse RCSA


Kiran K. , Satyanarayana H., Schmitz T.

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, cilt.121, ss.96-100, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 121
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.ijmachtools.2017.04.004
  • Dergi Adı: INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE
  • Sayfa Sayıları: ss.96-100

Özet

This paper describes an analytical approach for compensating accelerometer-based (contact-type) modal testing results for both mass loading and cable energy dissipation (damping). The inverse Receptance Coupling Substructure Analysis (RCSA) approach is implemented, where a lumped parameter model of the accelerometer-cable is decoupled from the measured receptance (or frequency response function) to isolate the structure's receptance. Experimental results are presented for a 12.7 mm diameter cantilever rod, a 6.35 mm diameter cantilever rod, and clamped-clamped-clamped-free boundary condition thin ribs.