梁单元是力学中非常基本的概念,对梁这一类一维构件的理解也至关重要. 在梁理论中,常用的有Euler-Bernoulli的薄梁(剪切刚性)理论和Timoshenko与Levinson的厚梁(剪切柔性)理论,这些理论对于剪应力的描述逐渐精确,适用范围逐渐变广,但同时需求解的方程也更加复杂,更加不便于应用于实际.值得一提的是,剪切刚性理论和剪切柔...
Euler–Bernoulli beamsFractional calculusNon-local modelsIn this paper the classical Euler–Bernoulli beam (CEBB) theory is reformulated utilising fractional calculus. Such generalisation is called fractional Euler–Bernoulli beams (FEBB) and results in non-local spatial description. The parameters of the...
Euler-Bernoulli梁理论 euler-bernoulli beam theory 研究工程结构在动载荷作用下的性能的科学。结构力学的分支学科。18世纪后半叶，瑞士的欧拉（L.Euler，1707～1783）和伯努利（D.Bernoulli，1700～1782）导出了梁的振动方程，并得到了各种边界条件下的正则振动模 ...
EulerBernoulli beam theory1Euler–Bernoulli beam theoryThis vibrating glass beam may be modeled as a cantilever beam withacceleration, variable linear density, variable section modulus, some kind ofdissipation, springy end loading, and possibly a point mass at the free end.Euler–Bernoulli beam ...
EulerBernoulli beam theory 1 Euler–Bernoulli beam theory Euler–Bernoulli beam theory (also known as engineer's beam theory or classical 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 ...
正文 Euler–Bernoullibeamtheory Euler–Bernoullibeamtheory Thisvibratingglassbeammaybemodeledasacantileverbeam withacceleration,variablelineardensity,variablesection modulus,somekindof dissipation,springyendloading,andpossiblyapointmassat thefreeend。 Euler–Bernoullibeamtheory(alsoknownas engineer'sbeamtheoryorclassical...
欧拉伯-努利梁理论(Euler–Bernoulli beam)又称为工程梁理论(Engineering beam theory)或者经典梁理论(Classical beam theory)。欧拉梁不考虑剪切变形,与铁木辛柯梁(Timoshenko beam)相对。前面一篇博文《Analysis of a Euler–Bernoulli beam with Abaqus [Abaqus欧拉-伯努利梁分析]》复习了Abaqus中利用欧拉梁单元B23和...
EulerBernoulli beam theory 1 Euler–Bernoulli beam theory This vibrating glass beam may be modeled as a cantilever beam with acceleration, variable linear density, variable section modulus, some kind of dissipation, springy end loading, and possibly a point mass at the free end. Euler–Bernoulli ...
复习有限元知识,利用 Abaqus 进行欧拉-伯努利梁单元的分析。欧拉伯-努利梁理论(Euler–Bernoulli beam)又称为工程梁理论(Engineering beam theory)或者经典梁理论(Classical beam theory)。欧拉梁不考虑剪切变形,与铁木辛柯梁(Timoshenko beam)相对。Abaqus中的B23和B33单元为欧拉梁单元。
The current beam theories are the Euler-Bernoulli beam theory and the Rayleigh-Timoshenko beam theory. 现有的梁理论主要有Euler-Bernoulli和Rayleigh-Timoshenko梁理论,本文从现有的Timoshenko梁理论入手,先后介绍了几种计算Timoshenko梁动力响应的理论方法:模态叠加法、传递矩阵法和回传射线矩阵法,并应用几种方法分...