Flutter Suppression of Long-Span Bridges Using Suboptimal Control
نویسندگان
چکیده
منابع مشابه
Multimode coupled flutter and buffeting analysis of long span bridges
In this paper, the equations of structural motion are expressed in time-invariant state-space equations by expressing the frequency dependent self-excited forces in terms of rational functions. Accordingly, the multimode coupled flutter analysis is reduced to evaluate the eigenvalues of a constant matrix at each prescribed wind velocity. This formulation is computationally efficient in comparis...
متن کاملLong Span Bridges
Population growth followed by the dramatic increase and demand for new services created an urgent and overwhelming need for infrastructures of civil engineering structures. However, the current infrastructure work using various techniques and conventional materials for construction will not solve the traditional and continuous deterioration of concrete structures due to corrosion of steel. One ...
متن کاملProspects for the Suppression of Aeroedynamic Vibrations of a Long-Span Bridge Using Boundary- Layer Control
Aerodynamic vibrations inherently occur on a long-span-length bridge. The vibrations are roughly classified into vortex-excited vibration and self-excited vibration both are induced by separation flow from the leading edge of the structure. As aerodynamic vibrations frequently cause fatal damage to the structure, the suppression method of vibration has been studied for a long time. Two methods ...
متن کاملElastic-plastic Seismic Behavior of Long Span Cable-stayed Bridges
This paper investigates the elastic-plastic seismic behavior of long span cable-stayed steel bridges through the plane finite-element model. Both geometric and material nonlinearities are involved in the analysis. The geometric nonlinearities come from the stay cable sag effect, axial force-bending moment interaction, and large displacements. Material nonlinearity arises when the stiffening ste...
متن کاملLimitations in the Structural Identification of Long-Span Bridges
Writers discuss an in-depth analysis of the limits in St -Id of large structures, including the mitigation of human errors and the control of uncertainty due to the complexity of large structures and their loading environment. After globally and locally calibrating a 25,218 DOF 3D FE model of a major bridge, the average error between the model and experimental frequencies is determined to be 2....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: World Journal of Engineering and Technology
سال: 2018
ISSN: 2331-4222,2331-4249
DOI: 10.4236/wjet.2018.62b004