نتایج جستجو برای: mixed type boundary condition
تعداد نتایج: 1932162 فیلتر نتایج به سال:
در این پایان نامه اثرات تغییرات پیوسته سختی برشی خاک در عمق روی انتشار قائم موج برشی و همچنین تابع امپدانس ارتعاش قائم پی صلب دایره ای در دو فصل جداگانه بررسی شده است. در بخش اول معادله دیفرانسیل حاکم بر انتشار موج برشی در خاک با فرض سختی برشی تابع عمق نوشته شد. سپس این معادله برای دو شرط مرزی مجزا با استفاده از روش بسط به سری توانی حل شد: 1- انتشار موج برشی از بینهایت به سطح 2- انتشار موج برشی...
we consider a mixed boundary value problem for a quarter-plane with a robin condition on one edge. we have developed two procedures, one based on the advanced theory of dual integral equations and the other, in our opinion simpler technique, relying on conformal mapping. both of the procedures are of interest, because the former may be easier to adapt to other boundary value problems.
In this paper, we prove the local well-posedness of free boundary problem in incompressible elastodynamics under a mixed type stability condition, i.e., for each point boundary, at ...
In this paper a method is presented in details to solve a nonlinear partial differential equation which has many applications in engineering fields. The boundary condition is mixed to be able to define the value of function on its variation on the boundary. Examples are given to demonstrate the accuracy and efficiency of the method.
We investigate the condition number of the matrices that appear in the boundary element method. In particular we consider the Laplace equation with mixed boundary conditions. For Dirichlet boundary conditions, the condition number of the system matrix increases linearly with the number of boundary elements. We extend the research and search for a relation between the condition number and the nu...
Exact Controllability for a Wave Equation with Mixed Boundary Conditions in a Non-cylindrical Domain
In this article we study the exact controllability of a one-dimensional wave equation with mixed boundary conditions in a non-cylindrical domain. The fixed endpoint has a Dirichlet-type boundary condition, while the moving end has a Neumann-type condition. When the speed of the moving endpoint is less than the characteristic speed, the exact controllability of this equation is established by Hi...
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