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胶囊机器人与肠道准静态交互的临界滑动阻力研究
Research on the Critical Sliding Resistance on the Quasi-static Interaction between the Capsule Robot and the Small Intestine

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文摘 目前,胶囊机器人从静止状态到相对运动发生的这一过程中所需要克服的阻力尚无有效数据.本文针对这一问题进行交互分析,量化影响临界滑动阻力的因素.首先基于Ciarletta的超弹模型,分析“内力—摩擦”式和磁驱式胶囊机器人实现运动所需的临界滑动阻力.首先分别建立了包括胶囊机器人头部压力、中段摩擦力和头部摩擦力的阻力模型,并根据力的平衡关系获得临界滑动阻力的表达式.其次,构建了实验台并利用家猪的离体小肠开展了实验.随后对影响临界阻力的参数进行了分析,包括胶囊机器人外径与肠管的内径比(R/r)、肠管摩擦系数和胶囊机器人的中段长度.临界滑动阻力的理论计算结果与实验结果达到较好的吻合.R/r和肠道摩擦系数的增大都会导致临界滑动阻力增大.胶囊头部所受摩擦力在阻力中所占比例小于1%.胶囊机器人受到的阻力与其中段长度呈线性关系.提出的模型能够准确地预测临界滑动阻力,可体现各因素的影响,其中最为主要的影响是R/r.
其他语种文摘 Currently, there are no effective results about how much resistance the capsule robot (CR) has to overcome during its start. This paper aims to obtain the critical sliding resistance (CSR), and quantify its influencing factors. Based on Ciarletta's superelasticity model, CSR is analyzed for the "internal force-static friction" CR and magnetically driven CR. Firstly, the resistance is modeled, including the pressure on the CR head and the frictions on the CR middle part and CR head, and a CSR expression is obtained from force equilibrium. Secondly, a experimental platform is built and experiments are performed with in-vitro porcine small intestine. Then, influences of three parameters on CSR are investigated, including ratio between CR's outer diameter and the small intestine's natural inner diameter (R/r), the friction coefficient and the length of the CR middle part. The theoretical value and experimental results for CSR match well with each other. Both the increasing of R/r and friction coefficient will increase the CSR. The friction force on the CR head is less than 1% of the total friction force. The CSR has a linear relationship with the length of CR middle part. The proposed model reflects the influences of various factors, and can accurately predict the CSR. The major factor affecting the resistance lies in the R/r.
来源 机器人 ,2014,36(6):704-710 【核心库】
DOI 10.13973/j.cnki.robot.2014.0704
关键词 胶囊机器人 ; 驱动 ; 摩擦力 ; 临界滑动阻力:超弹性
地址

中国科学院沈阳自动化研究所, 机器人学国家重点实验室, 辽宁, 沈阳, 110016

语种 中文
文献类型 研究性论文
ISSN 1002-0446
学科 自动化技术、计算机技术
基金 国家自然科学基金资助项目 ;  中国科学院大型仪器设备研制项目
文献收藏号 CSCD:5329573

参考文献 共 21 共2页

1.  Glass P. A legged anchoring mechanism for capsule endoscopes using micropatterned adhesives. IEEE Transactions on Biomedical Engineering,2008,55(11):2759-2767 被引 3    
2.  Kim B. An earthworm-like locomotive mechanism for capsule endoscopes. IEEE/RSJ International Conference on the Intelligent Robots and Systems,2005:4092-4097 被引 1    
3.  Kim B. Design and fabrication of a locomotive mechanism for capsule-type endoscopes using shape memory alloys (SMAs). IEEE/ASME Transactions on Mechatronics,2005,10(1):77-86 被引 14    
4.  Guo Z. Computational modelling of the stress-softening phenomenon of rubber-like materials under cyclic loading. European Journal of Mechanics: A/Solids,2006,25(5):877-896 被引 1    
5.  Li H. Motion generation of the capsubot using internal force and static friction. 45th IEEE Conference on Decision and Control,2006:6575-6580 被引 1    
6.  Ciuti G. Robotic magnetic steering and locomotion of capsule endoscope for diagnostic and surgical endoluminal procedures. Robotica,2010,28(2):199-207 被引 4    
7.  Moglia A. Wireless capsule endoscopy: From diagnostic devices to multipurpose robotic systems. Biomed Microdevices,2007,9(2):235-243 被引 20    
8.  Ciuti G. Capsule endoscopy: From current achievements to open challenges. IEEE Reviews in Biomedical Engineering,2011,4:59-72 被引 13    
9.  Zhang C. Modeling of velocity-dependent frictional resistance of a capsule robot inside an intestine. Tribology Letters,2012,47(2):295-301 被引 5    
10.  Ciarletta P. Hyperelastic model of anisotropic fiber reinforcements within intestinal walls for applications in medical robotics. International Journal of Robotics Research,2009,28(9):1279-1288 被引 8    
11.  Bellini C. Biaxial mechanical modeling of the small intestine. Journal of the Mechanical Behavior of Biomedical Materials,2011,4(7):1727-1740 被引 2    
12.  Kim J S. Experimental investigation of frictional and viscoelastic properties of intestine for microendo-scope application. Tribology Letters,2006,22(2):143-149 被引 12    
13.  Kim J S. Analytical model development for the prediction of the frictional resistance of a capsule endoscope inside an intestine. Proceedings of the Institution of Mechanical Engineers, Part H - Journal of Engineering in Medicine,2007,221(H8):837-845 被引 10    
14.  Woo S H. Small intestinal model for electrically propelled capsule endoscopy. BioMedical Engineering Online,2011,10:108 被引 3    
15.  Wang Z. Frictional resistance model of capsule endoscope in the intestine. Tribology Letters,2013,51(2):409-418 被引 2    
16.  Il'yushin A A. Experimental method of solving an integral equation of the theory of viscoelasticity. Polymer Mechanics,1969,5(3):506-509 被引 1    
17.  Zhang C. Modeling of frictional resistance of a capsule robot moving in the intestine at a constant velocity. Tribology Letters,2013,53(1):71-78 被引 1    
18.  Zhang C. Experimental investigation of intestinal frictional resistance in the starting process of the capsule robot. Tribology International,2014,70:11-17 被引 5    
19.  Wang X N. Study of frictional properties of the small intestine for design of active capsule endoscope. Proceedings of the IEEE RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics,2006:983-988 被引 1    
20.  林蔚. 驻留–伸缩式微型胃肠道机器人的力学建模. 机器人,2012,34(4):553-558 被引 2    
引证文献 2

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2 朱佳鹏 小肠环境下自推进胶囊内窥镜的非线性动力学行为研究 振动与冲击,2022,41(21):86-96
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