Note: A kinematic shaker system for high amplitude, low frequency vibration testing
Abstract
This note describes a shaker system capable of high peak-velocity, large amplitude, low frequency, near-sinusoidal excitation that has been constructed and employed in experiments on the inhibition of Rayleigh-Bénard convection using acceleration modulation. The production of high peak-velocity vibration is of interest in parametric excitation problems of this type and reaches beyond the capabilities of standard electromagnetic shakers. The shaker system described employs a kinematic linkage to two counter-rotating flywheels, driven by a variable-speed electrical motor, producing peak-to-peak displacements of 15.24 cm to a platform mounted on two guide rails. In operation, this shaker has been demonstrated to produce peak speeds of up to 3.7 m/s without failure.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 01, 2015
- Source ID
- 10.1063/1.4935148
Entities
People
- Anand Swaminathan
- Matthew E. Poese
- Robert W. Smith
- Steven L. Garrett
Organizations
- ARPA-E
- Julian Schwinger Foundation for Physics Research
- Office of Naval Research
- Pennsylvania State University