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- Based on Flugge shell theory, the equations of free vibrations of a orthotropic circular cylindrical shell under hydrostatic pressure are obtained. 本文对静水压力作用下正交各向异性圆柱壳的自由振动特性进行了分析。
- Based on the geometrically nonlinear theory for axially extensible beams, formulations of free vibrations in the vicinity of thermal post-buckling were derived. 基于轴向可伸长梁的几何非线性理论建立了弹性直梁在热过屈曲静态大变形附近自由振动的几何非线性模型。
- A new time-mode approach to nonlinear axisymmetric free vibrations of cylindrically orthotropic thin shallow spherical shells is presented in this paper. 给出了一种研究圆柱正交异性扁薄球壳非线性轴对称自由振动的新的时间模态方法。
- Amulti-mode solution is presented in the form of generalized double Fourier series with time-dependentcoefficients determined by the method of harmonic balance for undamped free vibrations. 给出了以广义双富里哀级数表示的无阻尼自由振动下的多模态解，其中与时间相关的系数由谐波平衡法确定。
- Any system capable of a free vibration without external force is a counter example, e.g. a wire in the piano. 任何一个无外力而能自由振动的系统就是一个反例，譬如钢琴中的一条钢丝。
- Highly accurate results are tabulated for the free vibration buckling and bending. 文后用图表给出高精度的自由振动、屈曲和弯曲计算结果。
- The free vibration characteristics of bar-type fiber optic hydrophone unit were investigated in this paper. 光纤水听器探头是光纤水听器系统的基础。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- The element-free method(EFM) is used to study the free vibration of the high-rise tube structures. 用无网格法研究高层筒体结构的自由振动问题。
- The analysis for free vibration of ring-stiffened circular cylindrical shell with variable thickness was presented. 分析了环肋变厚度圆柱壳的自振特性。
- The finite element model of the free vibration for the rigid suspension catenary and pantograph is set up. 建立刚性悬挂接触网的自由振动有限元模型,计算其固有频率和振型。
- This paper is concerned with the theoretical investigation of the bending and frees vibrations problems of moderately thick shallow spherical shells on the Winkler elastic foundations. 本文是对文克勒弹性地基上中厚度扁球壳的弯曲与自由振动问题的理论性研究。
- The relationship between the damage index and damage was studied by the analysis of the modal's undamped free vibration. 通过对模型的无阻尼自由振动分析研究损伤指标与损伤之间的关系；
- Reddy J.N:.:Free vibration of antisymmetric angle-ply laminatd plates including transverse shear deformation by the finite element method[J]. 林敦祥;倪荣根.;预测纤维增强复合材料层压板固有频率振型及模态阻尼的有限元算法[J]
- In this paper, a free vibration study of arbitrary quadrilateral thick plates by the spline least spuare method was presented. 本文用样条最小二乘法求解任意四边形厚板的自由振动问题。
- The crew remained free from scurvy. 那些船员仍然没有患坏血病之虞。
- In this paper,a solution in the form of Fourer-Bessel double series with supplementary terms is proposed to analyse free vibration of a sector plate. 本文从富氏级数的理论出发，对弹性地基扇形板的弯曲问题，提出了一种应用范围比较广的、便于计算的解析形式的解法。
- The inherent frequency of the microbeam resonator is determined by analyzing the free vibration of the microbeam (including the base structure). 通过对微梁 (包括基座 )的自由振动分析确定了微梁共振器的固有频率。
- The relationship between the damage index and damage was studied by the analysis of the modal’s undamped free vibration. 通过对模型的无阻尼自由振动分析研究损伤指标与损伤之间的关系;
- He's a fervent believer in free speech. 他是言论自由的强烈信仰者。
