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free vibration     
相关语句
  自由振动
    On the Static Stability and the Free Vibration of a Simply Supported Cylindrical Shell Patrtially Filled with Liquid under an Axial Static Pressure
    部分充液简支圆柱壳体轴向静压下的静力稳定性和自由振动
短句来源
    ANALYSIS OF THE FREE VIBRATION OF CANTILEVER CYLINDRICAL SHELLS
    悬臂圆柱壳体自由振动分析
短句来源
    FREE VIBRATION ANALYSIS OF SHELLS OF REVOLUTION UTITIZING CURVED SHELL ELEMENTS IN ORTHOGONAL CURVILINEAR COORDINATE SYSTEM
    用正交曲线坐标系中的曲壳单元分析旋转壳的自由振动
短句来源
    Space Variable Transform Method for Free Vibration Analysis of Thick Cylindrical Shelf with Arbitrary Boundary Conditions
    任意边界条件下圆柱厚壳自由振动分析的空间变量变换法
短句来源
    Axisymmetric Free Vibration of Cylindrical Shells with Variable Thickness
    变厚度圆柱壳的轴对称自由振动
短句来源
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  自振
    Free Vibration of Conical Columns in Water
    水中圆锥形柱腿的自振特性分析
短句来源
    A Precise Analysis Method for Free Vibration Characteristics of Chimneys
    烟囱自振特性的一种较精确分析方法
短句来源
    AN IMPROVED FINITE ELEMENT-TRANSFER MATRIX METHOD FOR FREE VIBRATION OF STRUCTURES
    结构自振频率计算的一种修正有限元传递矩阵法
短句来源
    ON THE FREE VIBRATION OF A CIRCULAR CYLINDRICAL SHELL FILLED WITH LIQUID
    充液圆柱壳的自振特性
短句来源
    STUDY OF FREE VIBRATION OF A ELASTIC THIN SHELL CONTAINING LIQUID
    充液弹性薄壳的自振分析
短句来源
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  自由振动的
    ASYMPTOTIC ANALYSIS OF FREE VIBRATION OF MONOCOQUE CYLINDERS
    柱壳自由振动的渐近分析
短句来源
    The Solution of Transfer Matrix of Bending Free Vibration for Beam with Elastic Supports and Elastic Foundation
    具有弹性支座及弹性地基的梁弯曲自由振动的传递矩阵法求解
短句来源
    FOURIER ANALYSIS ON FREE VIBRATION OF RECTANGULAR THICK PLATES WITH VARIABLE ELASTIC CURVED SUPPORTS
    变系数曲线支承矩形厚板自由振动的傅里叶分析
短句来源
    Transfer Matrix Method for the Free Vibration of Continuous Plate
    连续板自由振动的传递矩阵法
短句来源
    Exact Solutions for the Free Vibration of Rectangular Plates with Linearly Varying Thickness
    线性变厚度矩形薄板自由振动的精确解
短句来源
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  固有振动
    Free Vibration Analysis of Simplified Parallel Rotor
    简单平行转子的固有振动分析
短句来源
    The Self Adaptive Method for Free Vibration Analysis of a Beam
    梁固有振动分析的自适应方法
短句来源
    If there exists a discontinuity in the meridian for a rotational shell, we use the modal synthesis method to analyse the free vibration of this kind of shell.
    当壳体的经线有折角时,我们采用模态综合法分析它的固有振动特性。
短句来源
    Based on the principle of stationary complementary energy applied to free vibration of an elastic body, equations which control the body's stress modes of free vibration are derived and a new approach (stress approach) for vibration mode analysis of elastic systems is suggested.
    基于弹性体固有振动问题的余能变分原理,导出了弹性体固有振动的应力模态方程,进而探讨了一种模态分析的应力方法。
短句来源
    For static elasticity,thesimultaneous equations can be further simplified through another function F,which is gov-erned by a four-order partial differential equation,In free vibration problems of sphericalshell,tlie basic equations become an independent second order ordinary differential equa-tion and a set of second order simultaneous ordinary differential equations, which,we have illustrated,represent two different vibration modes,respectively.
    在静力学问题中,联立方程可进一步简化,w和G可用另一位移函数F表示,而F满足一个四阶偏微分方程。 在球壳固有振动问题中,则简化为一个独立的二阶常微分方程,和另两个二阶的联立的常微分方程,证明了在多层球壳中,它们分别对应独立的两类振动。
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      free vibration
    The scheme of gas-abrasive wear test of turbine compressor blades under free vibration of blades, including at high temperatures, is proposed.
          
    Investigation of Fatigue Damage of 20Kh13 Structural Steel and its Compositions with Fused Coatings by the Free Vibration Method
          
    It is shown that the dynamics of variation of the free vibration frequency of the samples is tightly related to the kinetics of fatigue damage.
          
    Results of an analysis of the possibilities of diagnostics of fatigue damage of pieces from metallic materials and compositions with coatings obtained with the use of the free vibration method are given.
          
    The perturbation can be proportional to any of the free vibration modes.
          
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    The impact of elastic systems is a complicated nonlinear phenomenon.By an analysisof the fundamental central impact of two elastic solids,we have demonstrated that thisnonlinear impact phenomenon may be linearized,qualitatively and quantitatively with anequivalent spring and an equivalent initial velocity.Thus,the impact problem of elasticsystems may be reduced to an appropriate free vibration initial value problem for a line-arized system for which the general solutions are deduced in this paper.Numerical...

    The impact of elastic systems is a complicated nonlinear phenomenon.By an analysisof the fundamental central impact of two elastic solids,we have demonstrated that thisnonlinear impact phenomenon may be linearized,qualitatively and quantitatively with anequivalent spring and an equivalent initial velocity.Thus,the impact problem of elasticsystems may be reduced to an appropriate free vibration initial value problem for a line-arized system for which the general solutions are deduced in this paper.Numerical ex-amples show that the method proposed is both simple and efficient.

    撞击,若视撞击物为弹性体,属复杂的非线性力学现象.本文从分析最基本的弹性球中心碰撞证实,这一非线性现象在定性和定量上均可用当量初速和当量弹簧加以线性化而把问题化为某线弹性系统的自由振动初值问题.本文导出了后者的通解.实例表明,本法计算简单且有较好精度,为分析弹性系统的撞击响应提供了一个实用方法.

    The method for solving rectangular plates of variable thickness presented in paper [1]is only applicable to plates simply supported at two opposite edges.In this paper,the deflections of plates are expanded in a series of the eigenfunctions of the bucklingproblem in beams,so the above-mentioned method can be extended to problems of rectan-gular plates arbitrarily supported at two opposite edges with the exception of free edgeand elastic support.The results of calculation of examples given in this paper show...

    The method for solving rectangular plates of variable thickness presented in paper [1]is only applicable to plates simply supported at two opposite edges.In this paper,the deflections of plates are expanded in a series of the eigenfunctions of the bucklingproblem in beams,so the above-mentioned method can be extended to problems of rectan-gular plates arbitrarily supported at two opposite edges with the exception of free edgeand elastic support.The results of calculation of examples given in this paper show that this method ismore convenient than certain others and the results obtained using this method are satis-factory,especially for solving problems of stability and free vibration in plates.

    文献提出了一个关于变厚度矩形板问题的解法,不过它只适用于板有两条对边是简支的情况.本文利用梁屈曲的本征函数作为板挠曲函数的展开式,考虑这类函数的拟正交性质,推广了文献的结果,使它能够进一步求解两条对边任意支承(自由边和弹性支承边除外)的变厚度矩形板问题.文中实例表明这个方法比某些方法计算简便,特别是对于分析析的稳定和自然振动问题,得到了满意的结果.

    This paper worked out according to Hoff type bending theory of sandwich plate, using the finite element method, the stiffness matrix, the mass matrix, the corresponding load vector and temperature load vector of sandwich plate elements. So it is applicable to the calculation of deformation, stress or free vibration of ordinary sandwich plates. The results as compared with the theoretical solutions are found to be comparatively satisfactory in accuracy.

    本文根据Hoff型夹层板弯曲理论,采用有限单元法导出了夹层板单元的刚度矩阵、质量矩阵、一致的载荷矢量和温度载荷矢量;用以计算一般夹层板的变形、应力或自由振动。其结果与理论解相比,具有较满意的精度。

     
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