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Alternative TitleResearch of intestines’ dynamic viscoelasticity based on five-element model
张诚; 刘浩; 苏刚; 谭人嘉; 李洪谊
Source Publication高技术通讯
Indexed ByEI ; CSCD
EI Accession number20124515655049
Contribution Rank1
Keyword动态粘弹特性 五元件模型 小肠 振动 过阻尼
Other AbstractThis 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.
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Document Type期刊论文
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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.
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