Dynamic responses of clearance-type non-linear systems subjected to base harmonic excitation and their experimental verification
| Autor: | K Renji |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Base (geometry) Aerospace Engineering Bilinear interpolation 02 engineering and technology Type (model theory) 01 natural sciences 0203 mechanical engineering 0103 physical sciences medicine General Materials Science 010301 acoustics Propellant tank Spacecraft business.industry Mechanical Engineering fungi Stiffness Structural engineering Nonlinear system 020303 mechanical engineering & transports Mechanics of Materials Interfacing Automotive Engineering medicine.symptom business |
| Zdroj: | Journal of Vibration and Control. 28:2445-2456 |
| ISSN: | 1741-2986 1077-5463 |
| DOI: | 10.1177/10775463211012877 |
| Popis: | Realistic joints in a spacecraft structure have clearances at the interfacing parts. Many such systems can be considered to be having bilinear stiffness. A typical example is the propellant tank assembled with the structure of a spacecraft. However, it is seen that the responses of such systems subjected to base excitation are rarely reported. In this work, mathematical expressions for theoretically estimating the amplitude of its response, the frequency at which the response is the maximum and the maximum response when it is subjected to base sine excitation are derived. Several experiments are conducted on a typical such system subjecting it to different levels of base sine excitation. The frequency at which the response is the maximum reduces with the magnitude of excitation. The expressions derived in this work can be used in estimating the amplitudes of responses and their characteristics reasonably well. |
| Databáze: | OpenAIRE |
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