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On the Biharmonic Equation

Authors: Fierro, A.; Posada, C.; Sanchez, J.J; Martinod T.;

On the Biharmonic Equation

Abstract

Este artículo proporciona una introducción completa a la ecuación biharmónica, centrándose en sus orígenes en la elasticidad y la mecánica de fluidos. Derivamos la ecuación a partir de principios físicos de deformaciones lineales y flujo de Stokes, ilustrando su aplicabilidad en el modelado de fenómenos como la flexión de placas y funciones de corriente en medios viscosos. Se desarrollan soluciones en coordenadas polares y esféricas con simetría radial, incluyendo condiciones de contorno para dominios esféricos, así como en coordenadas cartesianas 2D generales y la ecuación de onda biharmónica para la mecánica estructural. A lo largo del texto, destacamos aplicaciones prácticas en diversos campos de la ingeniería, mostrando el papel de la ecuación biharmónica en la predicción de tensiones, desplazamientos y patrones de flujo.

This article provides a comprehensive introduction to the biharmonic equation, focusing on its origins in elasticity and fluid mechanics. We derive the equation from physical principles of linear deformations and Stokes flow, illustrating its applicability in modeling phenomena such as plate bending and stream functions in viscous media. Solutions are developed in polar and spherical coordinates with radial symmetry, including boundary conditions for spherical domains, as well as in general 2D Cartesian coordinates and the biharmonic wave equation for structural mechanics. Throughout, we highlight practical applications across engineering fields, showcasing the biharmonic equation’s role in predicting stress, displacement, and flow patterns.

Country
Colombia
Related Organizations
Keywords

Separación de Variables, Ecuación Biharmónica, Biharmonic Equation, Separation of Variables, Radial Solutions, Soluciones Radiales

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green