Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism
This paper deals with form-finding and free vibration analysis of a pre-stressed class-one triplex tensegrity structure. The form-finding is performed via a two-step procedure, the nodal coordinates connectivity matrix, and structural element force density determination. Accordingly, the possible st...
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| Format: | Article |
| Language: | fas |
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Aerospace Research Institute
2023-08-01
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| Series: | فصلنامه علوم و فناوری فضایی |
| Subjects: | |
| Online Access: | https://jsst.ias.ir/article_179020_6656e3e6cffabaffcd84e67e0e129dbf.pdf |
| _version_ | 1831888585504063488 |
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| author | Milad َAzimi Samad Moradi |
| author_facet | Milad َAzimi Samad Moradi |
| author_sort | Milad َAzimi |
| collection | DOAJ |
| description | This paper deals with form-finding and free vibration analysis of a pre-stressed class-one triplex tensegrity structure. The form-finding is performed via a two-step procedure, the nodal coordinates connectivity matrix, and structural element force density determination. Accordingly, the possible states for the nodal coordinates and the structural force density of the triplex prism have been determined by trial and error (based on topology and member type knowledge) to satisfy the force density, and equilibrium matrices rank requirements. Based on different structural topologies, the equation of the motion in the frequency domain for free vibration analysis of the system is derived using the spectral element approach and dynamic shape functions. Simulations are provided for different system heights and the top-bottom aria ratios and compared with the FEM. The numerical simulations in the form of a comparative study of the natural frequencies of triplex tensegrity prism with different heights and cross-sections represent the system’s robustness with different topologies for single or multi-stage applications. |
| first_indexed | 2024-03-08T13:38:40Z |
| format | Article |
| id | doaj.art-d0085b08a02f4b3bbf90273bb41929e1 |
| institution | Directory Open Access Journal |
| issn | 2008-4560 2423-4516 |
| language | fas |
| last_indexed | 2025-03-22T00:20:44Z |
| publishDate | 2023-08-01 |
| publisher | Aerospace Research Institute |
| record_format | Article |
| series | فصلنامه علوم و فناوری فضایی |
| spelling | doaj.art-d0085b08a02f4b3bbf90273bb41929e12024-05-15T11:59:18ZfasAerospace Research Instituteفصلنامه علوم و فناوری فضایی2008-45602423-45162023-08-01163152610.30699/jsst.2023.1349179020Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity PrismMilad َAzimi0Samad Moradi1Aerospace Research Institute of Iran, Ministry of Science, Technology and Research, Tehran, IranM.Sc., Islamic Azad University, North Tehran Branch, Tehran, IranThis paper deals with form-finding and free vibration analysis of a pre-stressed class-one triplex tensegrity structure. The form-finding is performed via a two-step procedure, the nodal coordinates connectivity matrix, and structural element force density determination. Accordingly, the possible states for the nodal coordinates and the structural force density of the triplex prism have been determined by trial and error (based on topology and member type knowledge) to satisfy the force density, and equilibrium matrices rank requirements. Based on different structural topologies, the equation of the motion in the frequency domain for free vibration analysis of the system is derived using the spectral element approach and dynamic shape functions. Simulations are provided for different system heights and the top-bottom aria ratios and compared with the FEM. The numerical simulations in the form of a comparative study of the natural frequencies of triplex tensegrity prism with different heights and cross-sections represent the system’s robustness with different topologies for single or multi-stage applications.https://jsst.ias.ir/article_179020_6656e3e6cffabaffcd84e67e0e129dbf.pdfclass-one tensegrityform-findingnatural frequencyspectral elementvibration |
| spellingShingle | Milad َAzimi Samad Moradi Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism فصلنامه علوم و فناوری فضایی class-one tensegrity form-finding natural frequency spectral element vibration |
| title | Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism |
| title_full | Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism |
| title_fullStr | Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism |
| title_full_unstemmed | Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism |
| title_short | Form-Finding and Free Vibration Analysis of a Class-One Triplex Tensegrity Prism |
| title_sort | form finding and free vibration analysis of a class one triplex tensegrity prism |
| topic | class-one tensegrity form-finding natural frequency spectral element vibration |
| url | https://jsst.ias.ir/article_179020_6656e3e6cffabaffcd84e67e0e129dbf.pdf |
| work_keys_str_mv | AT miladazimi formfindingandfreevibrationanalysisofaclassonetriplextensegrityprism AT samadmoradi formfindingandfreevibrationanalysisofaclassonetriplextensegrityprism |