| Hybrid-Trefftz有限元法的研究进展 |
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| 引用本文： | 秦庆华.Hybrid-Trefftz有限元法的研究进展[J].力学进展,1998,28(1):71-82. |
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| 作者姓名： | 秦庆华 |
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| 作者单位： | 天津大学机械学院力学系 |
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| 摘 要： | 系统概述了Ｈｙｂｒｉｄ Ｔｒｅｆｆｔｚ有限元法及其在弹性力学中的应用．该单元模型由于在插值函数上的灵活选择性使其比普通有限元能更有效地处理局部效应问题，如孔洞，集中荷载等．通过适当选择单元插值函数可构造出高精度的ｐ－扩展元和一系列满足特殊条件的新单元，以在同等条件下提高计算精度
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| 关 键 词： | Hybrid-Trefftz有限元 p－扩展元 网线位 |
ADVANCES IN HYBRID TREFFTZ FINITE ELEMENT METHOD |
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| Qin Qinghua Dept. of Eng. Mechanics,Tsinghua University,Beijing\.ADVANCES IN HYBRID TREFFTZ FINITE ELEMENT METHOD[J].Advances in Mechanics,1998,28(1):71-82. |
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| Authors: | Qin Qinghua Dept of Eng Mechanics Tsinghua University Beijing\ |
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| Institution: | Qin Qinghua Dept. of Eng. Mechanics,Tsinghua University,Beijing\ 100084 |
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| Abstract: | The paper surveys exiting HT element formulation and its applications in elasticity and heat conduction. The T elements may be used to generate highly accurate h and p extension elements, which exhibit many important advantages over the conventional ones. The applications cover fields like plane elasticity, thin and thick plates, thin shells, poisson′s equation, axisymmetric 3 D elasticity, postbuckling behavior of thin plate and transient heat conduction analysis. Future trends in the ... |
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| Keywords: | Hybrid Trefftz finite element method p extension element frame displacement local effect |
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