Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings
Architectural structures’ nodal coordinates are significant to shape appearance; vertical overloading causes displacement of the joints resulting in shape distortion. This research aims to reshape the distorted shape of a double-layer spherical numerical model under vertical loadings; meanwhile, the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-12-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/125696/PDF/art34_int.pdf |
| _version_ | 1797954386769477632 |
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| author | Ahmed Manguri Najmadeen Saeed Aram Mahmood Javad Katebi Robert Jankowski |
| author_facet | Ahmed Manguri Najmadeen Saeed Aram Mahmood Javad Katebi Robert Jankowski |
| author_sort | Ahmed Manguri |
| collection | DOAJ |
| description | Architectural structures’ nodal coordinates are significant to shape appearance; vertical overloading causes displacement of the joints resulting in shape distortion. This research aims to reshape the distorted shape of a double-layer spherical numerical model under vertical loadings; meanwhile, the stress in members is kept within the elastic range. Furthermore, an algorithm is designed using the fmincon function to implement as few possible actuators as possible to alter the length of the most active bars. Fmincon function relies on four optimization algorithms: trust-region reflective, active set, Sequential quadratic progra mming (SQP), and interior-point. The fmincon function is subjected to the adjustment technique to search for the minimum number of actuators and optimum actuation. The algorithm excludes inactive actuators in several iterations. In this research, the 21st iteration gave optimum results, using 802 actuators and a total actuation of 1493 mm.MATLAB analyzes the structure before and after adjustment and finds the optimum actuator set. In addition, the optimal actuation found in MATLAB is applied to the modeled structure in MATLAB and SAP2000 to verify MATLAB results. |
| first_indexed | 2024-04-10T23:17:53Z |
| format | Article |
| id | doaj.art-a57a06fba51544448049b76a3b1c2efc |
| institution | Directory Open Access Journal |
| issn | 1230-2945 |
| language | English |
| last_indexed | 2024-04-10T23:17:53Z |
| publishDate | 2022-12-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-a57a06fba51544448049b76a3b1c2efc2023-01-12T18:06:08ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452022-12-01vol. 68No 4591606https://doi.org/10.24425/ace.2022.143056Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadingsAhmed Manguri0https://orcid.org/0000-0002-3789-0006Najmadeen Saeed1https://orcid.org/0000-0001-7074-0256Aram Mahmood2https://orcid.org/0000-0001-9688-4311Javad Katebi3https://orcid.org/0000-0002-6893-4526Robert Jankowski4https://orcid.org/0000-0002-6741-115XFaculty of Civil and Environmental Engineering, Gdańsk University of Technology, 80-223 Gdańsk, PolandCivil Engineering Department, University of Raparin, Rania, Kurdistan Region, IraqFaculty of Civil Engineering, University of Tabriz, Tabriz, IranFaculty of Civil Engineering, University of Tabriz, Tabriz, IranFaculty of Civil and Environmental Engineering, Gdańsk University of Technology, 80-223 Gdańsk, PolandArchitectural structures’ nodal coordinates are significant to shape appearance; vertical overloading causes displacement of the joints resulting in shape distortion. This research aims to reshape the distorted shape of a double-layer spherical numerical model under vertical loadings; meanwhile, the stress in members is kept within the elastic range. Furthermore, an algorithm is designed using the fmincon function to implement as few possible actuators as possible to alter the length of the most active bars. Fmincon function relies on four optimization algorithms: trust-region reflective, active set, Sequential quadratic progra mming (SQP), and interior-point. The fmincon function is subjected to the adjustment technique to search for the minimum number of actuators and optimum actuation. The algorithm excludes inactive actuators in several iterations. In this research, the 21st iteration gave optimum results, using 802 actuators and a total actuation of 1493 mm.MATLAB analyzes the structure before and after adjustment and finds the optimum actuator set. In addition, the optimal actuation found in MATLAB is applied to the modeled structure in MATLAB and SAP2000 to verify MATLAB results.https://journals.pan.pl/Content/125696/PDF/art34_int.pdfoptimization algorithmsspherical structuresdouble layersshape and stress controlactuator |
| spellingShingle | Ahmed Manguri Najmadeen Saeed Aram Mahmood Javad Katebi Robert Jankowski Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings Archives of Civil Engineering optimization algorithms spherical structures double layers shape and stress control actuator |
| title | Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings |
| title_full | Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings |
| title_fullStr | Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings |
| title_full_unstemmed | Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings |
| title_short | Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings |
| title_sort | optimal reshaping and stress controlling of double layer spherical structures under vertical loadings |
| topic | optimization algorithms spherical structures double layers shape and stress control actuator |
| url | https://journals.pan.pl/Content/125696/PDF/art34_int.pdf |
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