Beschreibung |
The course aims to introduce the students to the fundamentals and state-of-the-art methods of wind engineering and different aerodynamic phenomena that are relevant to the design of long-span cable-supported bridges. To characterize and quantify aerodynamic and aeroelastic effects, students will understand the concepts of computational fluid dynamics (CFD) simulations and experimental wind tunnel tests, along with their advantages and limitations. Students will be able to model complex bridge structures using Finite Element Analysis methods and simulate dynamic response due to wind. Different combinations of analytical, numerical and experimental analysis approaches are employed to investigate dynamic wind excitations with a focus on identifying serviceability issues and ultimate limit scenarios of the structure.
Participating students are tasked with practical bridge design-oriented challenges and work in groups to address them. Group organization and goal-oriented work are an important aspect to the project work. Results are reported periodically in presentations. Results are to be summarized in a report following scientific writing standards and presented orally. |
Bemerkung |
Literature review on aerodynamic phenomena in long-span bridges; Fundamentals of computational wind engineering; Aerodynamic loads; Self-excited or motion-induced forces; Aerodynamic instabilities; Finite Element modelling and dynamic simulation of long-span bridges (arches, cable-stayed bridges, suspension bridges); Model Validation; Analytical and semi-analytical aerodynamic models; 2D and pseudo- 3D CFD simulations; Developing experimental scaled models; Experimental wind tunnel testing; Comparison of results from different methods; Strategies for vibration mitigation; Aerodynamic optimization; Scientific writing and design-focused reporting. |