The SPAR element assumes a straight bar, axially loaded at its ends, and of uniform properties from end to end.
该杆单元假设为直杆，在端部施加力为轴向荷载，材料特性沿全长均质。
The longitudinal vibration equation of elastic straight bar with nonlinear material under the action of axial force is set up.
建立了非线性材料弹性直杆在轴向扰力作用下的纵振方程。
At the same time, the method of applying half - range function tO the internal - force equation of straight bar is illustrated.
同时说明半幅函数在建立直杆内力方程中的应用方法。
The nonlinear vibration equation of the elastic straight bar under thermal expansion and harmonic excitation is obtained by Galerkin principle.
由伽辽金方法得到了弹性直杆热胀冷缩状态下受均布简谐激励的非线性振动方程。
By using the hypothesis of the deformation of the straight bar and beam in mechanics of materials, a new engineering calculating model for a linear inclusion in plane is presented.
使用材料力学的直杆和梁的变形假定，对平面线夹杂问题提出一种新的工程计算模型。
This paper gives an exact solution for free vibration of a physically nonuniform straight bar with varying section by the use of a class of integrable linear ordinary differential equation.
本文应用可积的一类线性微分方程求出了非均质变截面弹性直杆振动问题的一个精确解，我们应用这一精确解验证了渐近解的精确度。
This paper gives an exact solution for free vibration of a physically nonuniform straight bar with varying section by the use of a class of integrable linear ordinary differential equation.
本文应用可积的一类线性微分方程求出了非均质变截面弹性直杆振动问题的一个精确解，我们应用这一精确解验证了渐近解的精确度。
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