基于五元件模型的小肠动态粘弹特性研究
文献类型:期刊论文
作者 | 张诚![]() ![]() ![]() ![]() |
刊名 | 高技术通讯
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出版日期 | 2012 |
卷号 | 22期号:9页码:964-968 |
关键词 | 动态粘弹特性 五元件模型 小肠 振动 过阻尼 |
ISSN号 | 1002-0470 |
其他题名 | Research of intestines’ dynamic viscoelasticity based on five-element model |
产权排序 | 1 |
中文摘要 | 进行了小肠动态粘弹特性的研究,应用五元件模型描述了小肠材料的松弛过程,得到了小肠材料的粘弹性本构方程。搭建了物理仿真平台,设计了负压吸附夹具,进行了小肠剪切松弛实验,实验验证了模型的有效性并进行了模型参数辨识。将该模型应用于振动式胶囊机器人,根据机器人的运动参数研究了小肠在一定频率下的动态粘弹性,得到了以下结论:五元件模型可以很好地拟合小肠材料松弛过程;小肠材料本构方程参数不是固定的而是随应变变化的;在胶囊自由振动过程中,整个系统呈现过阻尼状态,即非往复的衰减运动。 |
英文摘要 | This paper presents the research on intestines' dynamic viscoelasticity (DV). The relaxation process of an in- testine material was described using the five-element model ( FEM), and the viscoelastic constitutive equation of the material was obtained. A physical simulation platform was constructed and a fixture was developed according to the negative pressure adsorption principle to perform the material' s shear-relaxation test. The FEM' s effectiveness was verified and the model' s parameters were obtained through the experiment. Then the model was applied to a vibratory capsule robot and the intestine' s DV at a certain frequency was obtained according to the motion parame- ters of the capsule robot. The paper comes to three conclusions. First, the FEM fits well into modeling the shear-re- laxation process. Second, the parameters of the intestine's viscoelastic constitutive equation are not constant, but changes with strain. Third, when the capsule robot makes a free vibration, the whole system is in an overdamping condition, which means that the capule robot moves damped with no reciprocation. |
收录类别 | EI ; CSCD |
语种 | 中文 |
CSCD记录号 | CSCD:4750752 |
公开日期 | 2012-12-28 |
源URL | [http://ir.sia.cn/handle/173321/10349] ![]() |
专题 | 沈阳自动化研究所_机器人学研究室 |
推荐引用方式 GB/T 7714 | 张诚,刘浩,苏刚,等. 基于五元件模型的小肠动态粘弹特性研究[J]. 高技术通讯,2012,22(9):964-968. |
APA | 张诚,刘浩,苏刚,谭人嘉,&李洪谊.(2012).基于五元件模型的小肠动态粘弹特性研究.高技术通讯,22(9),964-968. |
MLA | 张诚,et al."基于五元件模型的小肠动态粘弹特性研究".高技术通讯 22.9(2012):964-968. |
入库方式: OAI收割
来源:沈阳自动化研究所
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