Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Dynamic coupling on the design of space structures
Year:2018
Research Areas
  • Aeronautical engineering
Information
Abstract
For the design of space structures, the dynamic coupling between equipment and the satellite (or between a satellite and the launcher) is usually avoided due to negative effects like high stresses produced by structural resonance. The usual procedure to assure the dynamic decoupling is by limiting the minimum value of natural frequency of the secondary structure to a value high enough above the main natural frequencies of the main structure. However, in some spacecraft configurations, it is unavoidable that some parts or equipment present natural frequencies close to the main natural frequencies of the spacecraft because these parts may be massive or may have a special interface design with low stiffness. This dynamic coupling provokes modifications on the modal behavior of the satellite, which can lead to a significant decrease in the first natural frequency of the entire satellite. To analyze this phenomenon, a representative but simple mathematical model is studied to evaluate the influence of the design parameters of space structures. Analytical expressions are obtained that can help to highlight the influence of the parameters. The results are demonstrated with the example of the UPMSat-2 satellite design.
International
Si
JCR
No
Title
Aerospace Science and Technology
ISBN
1270-9638
Impact factor JCR
Impact info
Volume
Journal number
84
From page
1035
To page
1048
Month
SIN MES
Ranking
Participants
  • Autor: Andres Garcia Perez (UPM)
  • Autor: Angel Pedro Sanz Andres (UPM)
  • Autor: Gustavo Alonso Rodrigo (UPM)
  • Autor: Marcos Chimeno Manguan (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Desarrollo y Ensayos Aeroespaciales
  • Centro o Instituto I+D+i: Instituto Universitario de Microgravedad "Ignacio da Riva"
  • Departamento: Sistemas Aeroespaciales, Transporte Aéreo y Aeropuertos
  • Departamento: Aeronaves y Vehículos Espaciales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
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