Chulalongkorn University Theses and Dissertations (Chula ETD)

Other Title (Parallel Title in Other Language of ETD)


Year (A.D.)


Document Type


First Advisor

Sawekchai Tangaramvong


Faculty of Engineering (คณะวิศวกรรมศาสตร์)

Department (if any)

Department of Civil Engineering (ภาควิชาวิศวกรรมโยธา)

Degree Name

Master of Engineering

Degree Level

Master's Degree

Degree Discipline

Civil Engineering




This thesis presents the novel Turbulent Flow of Water-based Optimization (TFWO) algorithm for the optimal design of structures under applied forces. The method has been inspired by the natural and random responses of vortices in rivers, seas and oceans. The design problem minimizes the total cost (viz., weight or volume) of the structure with the optimal distribution of its member sizes such that the safety and integrity of the resulting structure can be attained. It is formulated as the challenging nonlinear programming problem under the simultaneous ultimate strength and serviceability criteria. The proposed algorithm is encoded as a MATLAB code where the structure is discretized as a standard pin-connected truss. Various design benchmarks have been successfully processed by the TFWO approach. The accurate design solutions can be achieved at modest computing resources, where all constraints are strictly complied.

Other Abstract (Other language abstract of ETD)

-วิทยานิพนธ์ฉบับนี้นำเสนอขั้นตอนระเบียบวิธีการไหลแบบปั่นป่วนของการเพิ่มประสิทธิภาพตามน้ำ (Turbulent Flow of Water-based Optimization) เพื่อการออกแบบโครงสร้างอย่างเหมาะสมที่สุดภายใต้แรงกระทำ ซึ่งกระบวนการนี้ได้รับแรงบันดาลใจมาจากธรรมชาติที่เกิดขึ้น และการต



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.