Effect of load and meshing stiffness variation on modal properties of planetary gear
| Autor: | Mohamed Haddar, Fernando Viadero Rueda, Ahmed Hammami, Alfonso Fernández del Rincón, Ayoub Mbarek, Fakher Chaari |
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| Přispěvatelé: | Universidad de Cantabria |
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Engineering Modal energy Acoustics and Ultrasonics business.industry Mesh stiffness Modal analysis Modal analysis using FEM Modal testing Stiffness Natural frequency Structural engineering 01 natural sciences Vibration Tri-dimensional lumped parameter Modal Normal mode 0103 physical sciences medicine medicine.symptom business 010301 acoustics |
| Zdroj: | Applied Acoustics, 2019, 147, 32-43 UCrea Repositorio Abierto de la Universidad de Cantabria Universidad de Cantabria (UC) |
| Popis: | Modal analysis of mechanical transmissions allows identification of critical frequencies and corresponding vibration modes. Major research works are done under constant loading conditions. However, load fluctuation can lead to variability in stiffness characteristics. Also, in the case of gear transmission, the fluctuation of mesh stiffness is rarely considered in the modal analysis. In this paper, a modal analysis of planetary gear transmission is investigated for different loading conditions and under mesh stiffness fluctuation. Hammer impact tests are carried out and the vibrations on fix ring are measured with different levels of load. During each test, natural frequencies are identified through frequency response function. The obtained results are correlated against the corresponding tridimensional lumped parameter of the test rig. Distributions of modal strain and kinetic energy for different loading conditions are studied as well as the effect of mesh stiffness variation on the natural frequencies. This paper was financially supported by the Tunisian-Spanish Joint Project No. A1/037038/11. The authors would like also to acknowledge project ‘‘Development of methodologies for the simulation and improvement of the dynamic behavior of planetary transmissions DPI2013-44860” funded by the Spanish Ministry of Science and Technology. Acknowledgment to the University of Cantabria cooperation project for doctoral training of University of Sfax’s students. |
| Databáze: | OpenAIRE |
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