User`s guide

Appendix 4: Instructions for Vibration Measurement Laboratory

Laboratory: Vibration Measurements

1. OBJECTIVES

This laboratory uses strain gauge to measure the dynamic characteristic and the elastic

material properties of a cantilever.

Vibration data will be analyzed to:

 Determine the vibration amplitude, velocity, and acceleration in various units of measure;

 Determine natural frequencies;

 Measure and express damping characteristics as logarithmic decrement and percentage of

critical damping;

 Compare measurements with analytical and/or computational models of a cantilever; and

 Determine elastic modulus of a cantilever.

Uncertainty analysis of the results will be performed.