Frequency spectra of nonlocal Timoshenko beams and an effective method of determining nonlocal effect
文献类型：期刊论文
| 作者 | Zhang Y(张吟) ; Zhang, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
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| 刊名 | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
 |
| 出版日期 | 2017-08-01 |
| 卷号 | 128页码:572-582 |
| 关键词 | Nonlocal Effects Timoshenko Beam Resonant Frequency Frequency Spectrum |
| ISSN号 | 0020-7403 |
| DOI | 10.1016/j.ijmecsci.2017.05.017 |
| 文献子类 | Article |
| 英文摘要 | Three critical frequencies independent of boundary conditions together with a critical length, which determine the vibration behaviors of a nonlocal Timoshenko beam, are identified. Unlike a local Timoshenko beam which has two frequency spectra, a nonlocal Timoshenko beam may have two frequency spectra or one frequency spectrum depending on the nonlocal effect. The eigenfrequencies of the higher modes of a nonlocal Timoshenko beam, irrespective of its boundary conditions, are shown to asymptotically approach one critical frequency, which is mainly determined by the nonlocal effect and beam material properties. This asymptotic behavior is proposed as a new and reliable way to determine the nonlocal effect. The nonlocal effect is also shown to determine whether a special vibration mode called thickness shear vibration can occur. (C) 2017 Elsevier Ltd. All rights reserved. |
| 分类号 | 一类 |
| URL标识 | 查看原文 |
| WOS关键词 | TRANSVERSE VIBRATIONS ; ELASTICITY ; MECHANICS ; UNIFORM ; SHEAR ; BARS |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000409150400046 |
| 资助机构 | National Natural Science Foundation of China (NSFC)(11372321) |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/70045]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Zhang, Y (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhang Y,Zhang, Y . Frequency spectra of nonlocal Timoshenko beams and an effective method of determining nonlocal effect[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2017,128:572-582. |
| APA | 张吟,&Zhang, Y .(2017).Frequency spectra of nonlocal Timoshenko beams and an effective method of determining nonlocal effect.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,128,572-582. |
| MLA | 张吟,et al."Frequency spectra of nonlocal Timoshenko beams and an effective method of determining nonlocal effect".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 128(2017):572-582. |
入库方式： OAI收割
来源：力学研究所
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