ITA | ENG
B020506 - WIND ENGINEERING
Main information
Teaching Language
Suggested readings
Prerequisites
Teaching Methods
Type of Assessment
Course program
Academic Year 2014-15
Coorte 2013 - Second Cycle Degree in CIVIL ENGINEERING
Course year
Second year - Second Semester
Belonging Department
Civil and Environmental Engineering (DICEA)
Course Type
Single education field course
Scientific Area
ICAR/08 - STRUCTURAL MECHANICS
Credits
6
Teaching Hours
48
Teaching Term
02/03/2015 ⇒ 19/06/2015
Attendance required
No
Type of Evaluation
Final Grade
Course program
show
Lectureship
Teaching Language
Italian
Suggested readings (Search our library's catalogue)
- Simiu, E., and Scanlan, R.H. (1996). Wind effects on structures: Fundamentals and applications to design. 3rd Edition, John Wiley & Sons, New York, N.Y.
- Holmes, J.D. (2001). Wind loading of structures, Spon Press, London, U.K.
- Dyrbye, C., and Hansen, S.O. (1997). Wind loads on structures, John Wiley & Sons, New York, N.Y.
- Holmes, J.D. (2001). Wind loading of structures, Spon Press, London, U.K.
- Dyrbye, C., and Hansen, S.O. (1997). Wind loads on structures, John Wiley & Sons, New York, N.Y.
Prerequisites
- Structural Mechanics
- Theory of Structures
- Structural Dynamics (basics)
- Probability, statistics and stochastic processes (basics)
- Theory of Structures
- Structural Dynamics (basics)
- Probability, statistics and stochastic processes (basics)
Teaching Methods
Classroom lectures
Type of Assessment
- calculation of a reference structure (written paper)
- oral examination
- oral examination
Course program
The atmospheric circulation
Probability, statistics and stochastic processes
- Basic concepts recalls
- Spectral power density and correlations
- Extreme value analysis
- Peak factors and gust factors
Wind speed characterization
- Van der Hoven Spectrum; mean wind speed; Atmospheric Boundary Layer (ABL)
- The logarithmic profile of mean wind speed
- Roughness length ; turbulence intensity; integral turbulence scales
- Wind speed spectral tensor
Bluff bodies aerodynamics
- Separate flows; shear layers; Bernoulli (stagnation)
- Pressure coefficients; admittance (sectional); force coefficients
- Elongated structures: force and moment coefficients; static coefficients
Structural dynamics
- Recalls on classical modal analysis
- Random dynamics
- Random dynamics for n-DOFs systems; mechanical admittance
- Random dynamics for continuous systems (line-like systems)
Dynamic response
- Quasi-static theory; aerodynamic admittance
- Along-wind dynamic response: continuous systems (line-like); characterization of the admittance function
- Along-wind dynamic response: background and resonant response; dynamic coefficient
Aeroelasticity
- General definitions (Strouhal number, Scruton number, dimensionless terms)
- Vortex shedding: Vortex-Induced Vibrations (VIV); response assessment (EuroCode 1 approaches)
- Along-wind aerodynamic damping
- Quasi steady approaches (galloping)
- Unsteady phenomena; flutter
Seminars
- Introduction to computational fluid-dynamics (CFD)
- Similarity laws and dynamic testing in the wind tunnel
- Time-domain analysis: wind speed simulations
Probability, statistics and stochastic processes
- Basic concepts recalls
- Spectral power density and correlations
- Extreme value analysis
- Peak factors and gust factors
Wind speed characterization
- Van der Hoven Spectrum; mean wind speed; Atmospheric Boundary Layer (ABL)
- The logarithmic profile of mean wind speed
- Roughness length ; turbulence intensity; integral turbulence scales
- Wind speed spectral tensor
Bluff bodies aerodynamics
- Separate flows; shear layers; Bernoulli (stagnation)
- Pressure coefficients; admittance (sectional); force coefficients
- Elongated structures: force and moment coefficients; static coefficients
Structural dynamics
- Recalls on classical modal analysis
- Random dynamics
- Random dynamics for n-DOFs systems; mechanical admittance
- Random dynamics for continuous systems (line-like systems)
Dynamic response
- Quasi-static theory; aerodynamic admittance
- Along-wind dynamic response: continuous systems (line-like); characterization of the admittance function
- Along-wind dynamic response: background and resonant response; dynamic coefficient
Aeroelasticity
- General definitions (Strouhal number, Scruton number, dimensionless terms)
- Vortex shedding: Vortex-Induced Vibrations (VIV); response assessment (EuroCode 1 approaches)
- Along-wind aerodynamic damping
- Quasi steady approaches (galloping)
- Unsteady phenomena; flutter
Seminars
- Introduction to computational fluid-dynamics (CFD)
- Similarity laws and dynamic testing in the wind tunnel
- Time-domain analysis: wind speed simulations