| 转子系统振动特性分析的一种高精度有限元 |
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| 引用本文： | 蔡显新.转子系统振动特性分析的一种高精度有限元[J].计算力学学报,1994,11(2). |
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| 作者姓名： | 蔡显新 |
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| 作者单位： | 航空工业总公司六０八所 |
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| 摘 要： | 导出了转子－支承系统的基本微分方程井运用Ｇａｌｅｒｋｉｎ法对一种新的高精度转子单元进行了推导。采用该单元对几个算例进行了计算并与试验结果及其它文献的相应结果进行了比较。计算结果表明，该单元具有良好的精度。
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| 关 键 词： | 转子单元，Galerktn法，Timoshenko梁理论 |
A High Accurate Element for Dynamic Analysis of Rotor-Supporting System |
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| Cai Xianxin.A High Accurate Element for Dynamic Analysis of Rotor-Supporting System[J].Chinese Journal of Computational Mechanics,1994,11(2). |
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| Authors: | Cai Xianxin |
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| Abstract: | By utilizing Timoshenko beam theory, a set of first-order differential equations of a rotor-supporting system is derived. Galerkin method is used to establish the formulas of a high accuraterotor element,in which the effects of shear deformation,rotary inertia ,axial load,gyroscopic mo-ments,internal and external damping are included.Two examples are presented and the resultsare compared with those of experiments and those reported by other investigators utilizingdifferent method.The examples show that the accuracy of the present element is satisfactory. |
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| Keywords: | rotor element Galerkin method Timoshenko beam theory |
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