Integral Method for Static, Dynamic, Stability and Aeroelastic Analysis of Beam-like Structure Configurations
Journal Title: INCAS BULLETIN - Year 2017, Vol 9, Issue 4
Abstract
This work presents a synthesis of the use of an integral approximate method based on structural influence functions (Green’s functions) concerning the behavior of beam-like structures. This integral method is used in the areas of static, dynamic, aeroelasticity and stability analysis. The method starts from the differential equations governing the bending or/and torsional behavior of a beam. These equations are put in integral form by using appropriate Green’s functions, according to the boundary conditions. Choosing a number of n collocation points on the beam axis, each integral are then computed by a summation using weighting numbers. This approach is suitable for conventional Euler-Bernoulli beams and also for the thin-walled open or closed cross-section beams which can have bending-torsion coupling. Generally, for a static analysis this approach leads to a linear system of equations (the case of the lift aeroelastic distribution analysis) or to an eigenvalues and eigenvectors problem in the case of dynamic, stability or divergence analysis.
Authors and Affiliations
Viorel ANGHEL
Keywords
Related Articles
- EP ID EP294179
- DOI 10.13111/2066-8201.2017.9.4.1
- Views 78
- Downloads 0
A Semi-Empirical Airborne Particle Erosion Model for Polyesteric Matrix Fiberglass Composites
The paper deals with the mathematical modeling of the airborne solid particle erosion rate of composite materials, in particular non-oriented fiberglass reinforced polyesteric matrices. Using the mathematical tool of non...
Determination of flow front velocity and optimal injection pressures for better impregnation of E-glass with polyester in resin transfer mold
Flow front velocity of resin plays a key role in yielding better impregnation of fiber reinforcement in resin transfer molding to fabricate quality composites. A video camera was used to capture the patterns of resin flo...
Issues of Paradigmatic Nature of the Turbulence Origin
The fluid such as deformable continuum, without own shape its motion, must be guided by some physical surfaces/boundaries, which are subjected to an action from fluid under the form of the wall pressure, equal to the rea...
End-to-end process of hollow spacecraft structures with high frequency and low mass obtained with in-house structural optimization tool and additive manufacturing
In the space sector the most decisive elements are: mass reduction, cost saving and minimum lead time; here, structural optimization and additive layer manufacturing (ALM) fit best. The design must be driven by stiffness...
Method for mitigating the negative effect of vortex motion inside the suction chambers of centrifugal pumps
The paper presents a method for mitigating the negative effect of vortex motion inside the suction chambers of centrifugal pumps in order to obtain better use of water resource and decrease the risk related to loss of pr...