| Grant number: | 13/23522-2 |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |
| Start date: | March 18, 2014 |
| End date: | May 17, 2014 |
| Field of knowledge: | Engineering - Mechanical Engineering - Mechanics of Solids |
| Principal Investigator: | Michael John Brennan |
| Grantee: | Michael John Brennan |
| Visiting researcher: | Gianluca Gatti |
| Visiting researcher institution: | University of Calabria, Italy |
| Host Institution: | Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil |
Abstract
This research involves a study into the interaction between an electrodynamic shaker and a nonlinear structure under test. This is particularly problematic for nonlinear structures where the dynamic behaviour of the structure is a function of the forcing amplitude as well as frequency. It is extremely difficult to maintain a constant force applied to the structure around the resonance frequency, and this is important if the dynamic behaviour is to be compared with predictions from analytical or numerical models. In this project the interaction between the shaker and the structure will be studied in the laboratory under controlled conditions where, the nonlinearity, frequency and magnitude of excitation can be controlled. The system will be modelled so that the problem can be understand, and a method entitled the "receptance harmonic balance method" will be used in an attempt to remove the effects of the interaction from measured experimental data. (AU)
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