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generatrix directions
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     In this paper, an elasticity solution for axisymmetrically torsional vibration of conical shells with linearly variable thickness is obtained. The torsional vibration of the shell with and without the shearing deformation along its thickness are ali investigated. The characteristics of coupled bibration in the thickness and generatrix directions are revealed.
     本文给出线性变厚度圆锥壳轴对称扭转振动的弹性力学理论解,探讨壳体的无剪扭振和剪切扭振,揭示了圆锥壳在厚度方向剪切、母线方向扭转的耦合振动特性。
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     c) emphasize teachers' directions.
     三、加强教师的指导。
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     BLENDING SURFACE VIA GENERATRIX
     过渡曲面的母线构造法
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In this paper, an elasticity solution for axisymmetrically torsional vibration of conical shells with linearly variable thickness is obtained. The torsional vibration of the shell with and without the shearing deformation along its thickness are ali investigated. The characteristics of coupled bibration in the thickness and generatrix directions are revealed. These dynamic properties are difficult to be revealed otherwise by the classical theory of shells. In this paper, the natural frequencies and the...

In this paper, an elasticity solution for axisymmetrically torsional vibration of conical shells with linearly variable thickness is obtained. The torsional vibration of the shell with and without the shearing deformation along its thickness are ali investigated. The characteristics of coupled bibration in the thickness and generatrix directions are revealed. These dynamic properties are difficult to be revealed otherwise by the classical theory of shells. In this paper, the natural frequencies and the modes of vibration are given in tables and figures in a numerical example.

本文给出线性变厚度圆锥壳轴对称扭转振动的弹性力学理论解,探讨壳体的无剪扭振和剪切扭振,揭示了圆锥壳在厚度方向剪切、母线方向扭转的耦合振动特性。这些性质用经典壳理论是无法反映的。文末算例用许多数据表和曲线图描述变厚度圆锥壳的周有频率和振型。

According to the deformation of shear spinning on conical workpieces,the stress and strain has been analyzed and the new deformation mechanism has been put forward that the forming area of shear spinning should be divided into tension bending zone and rolling zone. The former is similar to bulge, but the deforming mode of the latter is rolling in which the stress is tensile in generatrix direction and the wall thickness are mainly reduced in this zone. In addition, by means of Z graph,the stress and strain...

According to the deformation of shear spinning on conical workpieces,the stress and strain has been analyzed and the new deformation mechanism has been put forward that the forming area of shear spinning should be divided into tension bending zone and rolling zone. The former is similar to bulge, but the deforming mode of the latter is rolling in which the stress is tensile in generatrix direction and the wall thickness are mainly reduced in this zone. In addition, by means of Z graph,the stress and strain of different shear spinning state has been researched and the optimum range of stress and strain has been gained.

根据剪旋过程的实际情况进行了应力应变分析 ,对剪旋变形机理提出了新的见解 ,将剪旋变形区分为拉弯区和辗压变形区。前者的受力情况类似于胀形 ,后者为母线方向拉应力作用下的辗压变形 ,该区起主要减薄壁厚的作用。此外 ,本文利用Z形图对剪旋的各种状态进行了应力应变分析 ,并确定出了剪旋时最佳应力应变状态的区域。

 
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