- beam equation
- уравнение для балки
Авиасловарь. М.А.Левин. 2004.
beam equation
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Euler-Bernoulli beam equation — Euler Bernoulli beam theory, or just beam theory, is a simplification of the linear theory of elasticity which provides a means of calculating the load carrying and deflection characteristics of beams. It was first enunciated circa 1750, but was… … Wikipedia
Beam (structure) — A statically determinate beam, bending (sagging) under an evenly distributed load. A beam is a horizontal structural element that is capable of withstanding load primarily by resisting bending. The bending force induced into the material of the… … Wikipedia
Beam propagation method — (BPM) refers to a computational technique in Electromagnetics, usedto solve the Helmholtz equation under conditions of a time harmonic wave. BPM works under slowly varying envelope approximation, for linear and nonlinear equations.The beam… … Wikipedia
Beam parameter product — In laser science, the beam parameter product (BPP) is the product of a laser beam s divergence angle (half angle) and the radius of the beam at its narrowest point (the beam waist).cite web|url=http://www.rp photonics.com/beam parameter… … Wikipedia
Timoshenko beam theory — The Timoshenko beam theory was developed by Ukrainian/Russian born scientist Stephen Timoshenko in the beginning of the 20th century. The model takes into account shear deformation and rotational inertia effects, making it suitable for describing … Wikipedia
Dispersive partial differential equation — In mathematics, a dispersive partial differential equation or dispersive PDE is a partial differential equation that is dispersive. In this context, dispersion means that waves of different wavelength propagate at different phase velocities.… … Wikipedia
I-beam — I beams (also known as W beams or double T esp. in Polish and German) are beams with an I or H shaped cross section ( W stands for wide flange ). The horizontal elements are flanges, while the vertical element is the web. The Euler Bernoulli beam … Wikipedia
Bernoulli equation — may refer to:*Bernoulli differential equation *Bernoulli s equation, in fluid dynamics. *Euler Bernoulli beam equation, in solid mechanics … Wikipedia
Radiative transfer equation and diffusion theory for photon transport in biological tissue — Photon transport in biological tissue can be equivalently modeled numerically with Monte Carlo simulations or analytically by the radiative transfer equation (RTE). However, the RTE is difficult to solve without introducing approximations. A… … Wikipedia
Gaussian beam — In optics, a Gaussian beam is a beam of electromagnetic radiation whose transverse electric field and intensity (irradiance) distributions are well approximated by Gaussian functions. Many lasers emit beams that approximate a Gaussian profile, in … Wikipedia
Dirac equation — Quantum field theory (Feynman diagram) … Wikipedia
