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《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-022-0696-0
关键词: function-oriented tendon driven prosthetic hand optimization humanoid underactuated
Francesco PENTA,Cesare ROSSI,Sergio SAVINO
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 184-194 doi: 10.1007/s11465-016-0385-y
This study aims to optimize the geometrical parameters of an under-actuated mechanical finger by conducting a theoretical analysis of these parameters. The finger is actuated by a flexion tendon and an extension tendon. The considered parameters are the tendon guide positions with respect to the hinges. By applying such an optimization, the correct kinematical and dynamical behavior of the closing cycle of the finger can be obtained. The results of this study are useful for avoiding the snap-through and the single joint hyperflexion, which are the two breakdowns most frequently observed during experimentation on prototypes. Diagrams are established to identify the optimum values for the tendon guides position of a finger with specified dimensions. The findings of this study can serve as guide for future finger design.
关键词: tendon-driven fingers mechanical finger design under-actuated mechanical systems
《结构与土木工程前沿(英文)》 页码 827-854 doi: 10.1007/s11709-023-0954-1
关键词: seismic performance continuous girder bridge grouting sleeve-prestressed tendon composite connections grouted sleeve connection design parameters
Tissue engineering of cartilage, tendon and bone
null
《医学前沿(英文)》 2011年 第5卷 第1期 页码 61-69 doi: 10.1007/s11684-011-0122-1
Tissue engineering aims to produce a functional tissue replacement to repair defects. Tissue reconstruction is an essential step toward the clinical application of engineered tissues. Significant progress has recently been achieved in this field. In our laboratory, we focus on construction of cartilage, tendon and bone. The purpose of this review was to summarize the advances in the engineering of these three tissues, particularly focusing on tissue regeneration and defect repair in our laboratory. In cartilage engineering, articular cartilage was reconstructed and defects were repaired in animal models. More sophisticated tissues, such as cartilage in the ear and trachea, were reconstructed both in vitro and in vivo with specific shapes and sizes. Engineered tendon was generated in vitro and in vivo in many animal models with tenocytes or dermal fibroblasts in combination with appropriate mechanical loading. Cranial and limb bone defects were also successfully regenerated and repaired in large animals. Based on sophisticated animal studies, several clinical trials of engineered bone have been launched with promising preliminary results, displaying the high potential for clinical application.
关键词: Tissue engineering cartilage bone tendon recent advances
面向机器人微创手术的新型遥控柔性机器人 Article
李峥, Jan Feiling, 任洪亮, Haoyong Yu
《工程(英文)》 2015年 第1卷 第1期 页码 73-78 doi: 10.15302/J-ENG-2015011
本文介绍了基于约束型蛇形拉线机构(CTSM)的新型柔性机器人系统。与达芬奇外科手术机器人和传统柔性机器人相比,基于CTSM的机器人具有更大的工作空间,更高的灵巧度以及刚度可控的优点。该机器人采用Novint Falcon触觉设备进行远程操控, 包括两种操作模式——直接映射模式和增量模式。在每一种模式下,该机器人都可以采用“最大刚度”方案或“最小运动”方案来操控。CTSM的以上优点在仿真模拟和实验中均得以验证。
State-of-the-art on theories and applications of cable-driven parallel robots
《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-022-0693-3
关键词: cable-driven parallel robot kinematics optimization dynamics control
《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1470-y
• BiVO4/Fe3O4/rGO has excellent photocatalytic activity under solar light radiation.
关键词: Photocatalysis Ternary magnetic photocatalyst Visible-light-driven Free radicals trapping Reusability Recycling
A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils
Xinyu HU, Zixin ZHANG, Scott KIEFFER
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 176-187 doi: 10.1007/s11709-012-0149-7
关键词: analytical solution shield-driven tunnel multilayered soil face stability
Prediction of hydro-suction dredging depth using data-driven methods
《结构与土木工程前沿(英文)》 2021年 第15卷 第3期 页码 652-664 doi: 10.1007/s11709-021-0719-7
关键词: sedimentation water resources dam engineering machine learning heuristic
Data driven models for compressive strength prediction of concrete at high temperatures
Mahmood AKBARI, Vahid JAFARI DELIGANI
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 311-321 doi: 10.1007/s11709-019-0593-8
关键词: data driven model compressive strength concrete high temperature
An energy consumption prediction approach of die casting machines driven by product parameters
《机械工程前沿(英文)》 2021年 第16卷 第4期 页码 868-886 doi: 10.1007/s11465-021-0656-0
关键词: die casting machine energy consumption prediction product parameters
Linear quadratic optimal controller for cable-driven parallel robots
Saeed ABDOLSHAH,Erfan SHOJAEI BARJUEI
《机械工程前沿(英文)》 2015年 第10卷 第4期 页码 344-351 doi: 10.1007/s11465-015-0364-8
In recent years, various cable-driven parallel robots have been investigated for their advantages, such as low structural weight, high acceleration, and large workspace, over serial and conventional parallel systems. However, the use of cables lowers the stiffness of these robots, which in turn may decrease motion accuracy. A linear quadratic (LQ) optimal controller can provide all the states of a system for the feedback, such as position and velocity. Thus, the application of such an optimal controller in cable-driven parallel robots can result in more efficient and accurate motion compared to the performance of classical controllers such as the proportional-integral-derivative controller. This paper presents an approach to apply the LQ optimal controller on cable-driven parallel robots. To employ the optimal control theory, the static and dynamic modeling of a 3-DOF planar cable-driven parallel robot (Feriba-3) is developed. The synthesis of the LQ optimal control is described, and the significant experimental results are presented and discussed.
关键词: accuracy cable-driven parallel robot linear quadratic optimal control
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0687-1
关键词: masticatory robot cable-driven linear actuator parallel robot stiffness analysis
Digital twin-driven smart supply chain
《工程管理前沿(英文)》 2022年 第9卷 第1期 页码 56-70 doi: 10.1007/s42524-021-0186-9
Test-driven verification/validation of model transformations
László LENGYEL,Hassan CHARAF
《信息与电子工程前沿(英文)》 2015年 第16卷 第2期 页码 85-97 doi: 10.1631/FITEE.1400111
关键词: Graph rewriting based model transformations Verification/validation Test-driven verification
标题 作者 时间 类型 操作
Function-oriented optimization design method for underactuated tendon-driven humanoid prosthetic hand
期刊论文
Analysis of suitable geometrical parameters for designing a tendon-driven under-actuated mechanical finger
Francesco PENTA,Cesare ROSSI,Sergio SAVINO
期刊论文
Seismic performance of fabricated continuous girder bridge with grouting sleeve-prestressed tendon composite
期刊论文
One-pot hydrothermal fabrication of BiVO/FeO/rGO composite photocatalyst for the simulated solar light-driven
期刊论文
A real-life stability model for a large shield-driven tunnel in heterogeneous soft soils
Xinyu HU, Zixin ZHANG, Scott KIEFFER
期刊论文
Data driven models for compressive strength prediction of concrete at high temperatures
Mahmood AKBARI, Vahid JAFARI DELIGANI
期刊论文
Linear quadratic optimal controller for cable-driven parallel robots
Saeed ABDOLSHAH,Erfan SHOJAEI BARJUEI
期刊论文
Development of a masticatory robot using a novel cable-driven linear actuator with bidirectional motion
期刊论文