| 在热冲击下弹性梁非线性热局部屈曲 |
| |
| 引用本文： | 徐新生,马春泓,褚洪杰,C W Lim.在热冲击下弹性梁非线性热局部屈曲[J].兵工学报,2010(Z1). |
| |
| 作者姓名： | 徐新生 马春泓 褚洪杰 C W Lim |
| |
| 作者单位： | 大连理工大学工业装备结构分析国家重点实验室;香港城市大学建筑系; |
| |
| 基金项目： | 国家“973”计划项目(2009CB724302) |
| |
| 摘 要： | 研究了弹性梁在热冲击下的热传导过程和大变形下的后屈曲行为。采用Hamilton体系下的辛本征解基描述屈曲模态,并用辛本征解展开方法对非线性的后屈曲问题进行探讨。提出了一种数值计算方法。研究结果揭示了梁后屈曲的整个变化过程。结果还表明屈曲变形过程依赖热冲击强度、热传导系数和梁的参数等。
|
| 关 键 词： | 弹性梁 热冲击 热屈曲 辛本征解 大变形 |
Nonlinear Local Thermal Buckling of Elastic Beams Subjected to Thermal Impact |
| |
| XU Xin-sheng,MA Chun-hong,CHU Hong-jie,C W Lim.Nonlinear Local Thermal Buckling of Elastic Beams Subjected to Thermal Impact[J].Acta Armamentarii,2010(Z1). |
| |
| Authors: | XU Xin-sheng MA Chun-hong CHU Hong-jie C W Lim |
| |
| Affiliation: | XU Xin-sheng1,MA Chun-hong1,CHU Hong-jie1,C W Lim2(1.State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,Liaoning,China,2.Department of Building and Construction,City University of Hong Kong,Hong Kong,China) |
| |
| Abstract: | The post-buckling of elastic beams undergone thermal transfer and large deformation in the thermal impact were studied.Base on the buckling modals depicted by the symplectic eigensolutions in Hamiltonian system,the problem of nonlinear post buckling was discussed by using the expansion method of symplectic eigensolutions.A numerical calculation method was proposed.The research results reveal the whole post-buckling process of the beam and show that the process relates to the impact intensity,the heat conduc... |
| |
| Keywords: | elastic beam thermal impact thermal buckling symplectic eigensolution large deformation |
| 本文献已被 CNKI 等数据库收录！ |
|
