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.
从非定常流动和弹性叶片振动相耦合的角度来研究叶片的强迫响应，对于叶片的高周疲劳具有重要意义。
From the standpoint of coupling of non-steady flow with elastic blade vibration, studied was the forced response of blades, which is of major significance for the high-cycle fatigue of blades.
以及一端系有集中质量的非均匀弹性杆振动问题。
The vibration of a nonuniform flexible rod connected to a concentrated mass is also solved.
本文用力学-振动光谱研究了硬弹性聚丙烯（HEPP）晶区和非晶区分子链在拉伸时取向的变化。
The orientation behaviour of molecular chains of hard elastic polypropylene(HEPP) film was investigated on the uniaxial stretching by polarized IR Vibration-Mechanical Spectroscopy.
基于改进的当地流活塞理论，推导了用模态坐标表示的弹性振动翼面的非定常广义气动力表达式。
Based on the improved local piston theory, this paper presents the matrix expression of generalized aerodynamic forces expressed by the generalized coordinates.
研究了横观各向同性饱和半空间地基上弹性圆板的非轴对称振动问题。
The non-axisymmetrical vibration of elastic circular plate resting on a layered transversely isotropic saturated ground is studied.
讨论并求解了一端系有集中质量再与弹簧连接的均匀弹性杆振动问题； 以及一端系有集中质量的非均匀弹性杆振动问题。
The vibration of a uniform flexible rod connected to a concentrated mass which is further connected to a spring is solved.
讨论并求解了一端系有集中质量再与弹簧连接的均匀弹性杆振动问题； 以及一端系有集中质量的非均匀弹性杆振动问题。
The vibration of a uniform flexible rod connected to a concentrated mass which is further connected to a spring is solved.
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