| 基于等效单元概念的梁结构损伤定位方法 |
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| 引用本文： | 马中军, 司马玉洲. 基于等效单元概念的梁结构损伤定位方法[J]. 力学与实践, 2011, 33(1): 35-38. doi: 10.6052/1000-0879-lxysj2010-420 |
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| 作者姓名： | 马中军 司马玉洲 |
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| 作者单位： | 1. 南阳理工学院土木系; 2. 华中科技大学,土木工程与力学学院 |
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| 摘 要： | 研究目的是为梁结构提供一种基于等效单元概念的新损伤定位方法.区分刚度损伤和质量损伤两种情况, 分别对连续梁和简支梁给出了具体的损伤定位方法. 利用的具体指标是支座反力和跨中位移. 文中的新方法都可以得到以小区间表示的损伤位置结果, 有效性得到了数值模拟算例和模型实验的验证.
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| 关 键 词： | 等效单元 梁 损伤 识别 区间 |
| 收稿时间： | 2010-10-20 |
| 修稿时间： | 2010-11-15 |
DAMAGE LOCALIZATION FOR BEAM STRUCTURES BASED ON EQUIVALENT ELEMENT CONCEPT |
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| DAMAGE LOCALIZATION FOR BEAM STRUCTURES BASED ON EQUIVALENT ELEMENT CONCEPT[J]. Mechanics in Engineering, 2011, 33(1): 35-38. doi: 10.6052/1000-0879-lxysj2010-420 |
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| Authors: | MA Zhongjun Sima Yuzhou |
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| Affiliation: | MA Zhongjun~(1)) Sima Yuzhou (Department of Civil Engineering,Nanyang Institute of Technology,Henan,Nanyang 473004,China) |
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| Abstract: | This paper discusses how to locate damage in beam structures.Damage is related with changes of local stiffness or local mass.Based on the equivalent element concept,this paper proposes new methods of damage localization for continuous beam and simply supported beams,respectively,by using support reaction and mid-span displacement as damage indicators.The damage location results are expressed in small regions intervals.The feasibility and effectiveness of the methods are demonstrated by numerical simulations... |
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| Keywords: | equivalent element beam damage interval |
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