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[交流] 【求助】Navier-Bernoulli beam theory和Navier-Bernoulli hypothesis是什么意思？已有4人参与

以前只听过Euler-Bernoulli beam

谢谢了~

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路漫漫其修远兮吾将上下而求索

1楼2010-11-25 18:58:14

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小木虫(金币+0.5):给个红包，谢谢回帖交流
zongyu_1986(金币+1):感谢热心帮助，欢迎常来！ 2011-01-16 09:46:40

美女外事不懂问google，内事不懂问百度，房事不懂问天涯，学术不懂问wikipedia！
下面是wikipedia给出的简单介绍：
Euler–Bernoulli beam theory (also known as engineer's beam theory, classical beam theory or just beam theory)[1] is a simplification of the linear theory of elasticity which provides a means of calculating the load-carrying and deflection characteristics of beams. It covers the case for small deflections of a beam which is subjected to lateral loads only. It is thus a special case of Timoshenko beam theory which accounts for shear deformation and is applicable for thick beams. It was first enunciated circa 1750[2] , but was not applied on a large scale until the development of the Eiffel Tower and the Ferris wheel in the late 19th century. Following these successful demonstrations, it quickly became a cornerstone of engineering and an enabler of the Second Industrial Revolution.
Additional analysis tools have been developed such as plate theory and finite element analysis, but the simplicity of beam theory makes it an important tool in the sciences, especially structural and mechanical engineering.

详见：http://en.wikipedia.org/wiki/Eul ... oulli_beam_equation