A long and slender flexible beam is set in oscillatory motion to observe its deflection. A novel application of digital image processing is employed to obtain contactless discrete measurements of the beam tip deflection. We compare the measured data to those predicted by a flexible multibody dynamics simulation (flxdyn). This study is intended as a benchmark. Moreover, the system is described in sufficient detail to enable other investigators to repeat, and build upon results herein presented for the first time.

Beam spin-up, Contactless deflection measurement, Flexible beam, Flexible body dynamics, Geometric stiffening, Metric digital image processing, Multibody dynamics, Simulation
Mechanism and Machine Theory
Department of Mechanical and Aerospace Engineering

Langlois, R.G, & Hayes, M.J.D. (2006). Reciprocating excitation of a flexible beam: Benchmark study. Mechanism and Machine Theory, 41(4), 359–381. doi:10.1016/j.mechmachtheory.2005.07.005