Optimal reshaping and stress controlling of double-layer spherical structures under vertical loadings

• Autorzy: Manguri Ahmed , Saeed Najmadeen , Mahmood Aram , Katebi Javad , Jankowski Robert

Identyfikatory

DOI

10.24425/ace.2022.143056

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

optimization algorithm; spherical structure; double layer structure; shape control; stress control; actuator

PL

algorytm optymalizacji; struktura kulista; struktura dwuwarstwowa; kontrola kształtu; kontrola naprężeń; siłownik

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2022
• Tom: Vol. 68, nr 4
• Strony: 591--606
• Opis fizyczny: Bibliogr. 36 poz., il., tab.

Twórcy

autor

Manguri Ahmed

• Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdańsk, Poland
• Civil Engineering Department, University of Raparin, Rania, Kurdistan Region, Iraq

• https://orcid.org/0000-0002-3789-0006

autor

Saeed Najmadeen

• Civil Engineering Department, University of Raparin, Rania, Kurdistan Region, Iraq
• Civil Engineering Department, Tishk International University, Erbil, Kurdistan Region, Iraq

• https://orcid.org/0000-0001-7074-0256

autor

Mahmood Aram

• Faculty of Civil Engineering University of Tabriz, Tabriz, Iran

• https://orcid.org/0000-0001-9688-4311

autor

Katebi Javad

• Faculty of Civil Engineering University of Tabriz, Tabriz, Iran

• https://orcid.org/0000-0002-6893-4526

autor

Jankowski Robert

• Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdańsk, Poland

• https://orcid.org/0000-0002-6741-115X

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