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Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 4,   Pages 610-621 doi: 10.1007/s11465-020-0596-0

Abstract: The design, fabrication, and testing of soft sensors that measure elastomer curvature and mechanicalfinger bending are described in this study.Lastly, the soft sensors are applied to the measurement of mechanical finger bending.Experiments show that soft curvature sensors can effectively reflect mechanical finger bending and canbe used to measure the bending of mechanical fingers with high sensitivity within a certain working

Keywords： soft sensor     Ga-In-Sn alloy     strain sensing     curvature sensing     mechanical finger bending    

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Analysis of suitable geometrical parameters for designing a tendon-driven under-actuated mechanical finger

Francesco PENTA,Cesare ROSSI,Sergio SAVINO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2,   Pages 184-194 doi: 10.1007/s11465-016-0385-y

Abstract:

This study aims to optimize the geometrical parameters of an under-actuated mechanical finger by conductingThe finger is actuated by a flexion tendon and an extension tendon.applying such an optimization, the correct kinematical and dynamical behavior of the closing cycle of the fingerDiagrams are established to identify the optimum values for the tendon guides position of a finger withThe findings of this study can serve as guide for future finger design.

Keywords： tendon-driven fingers     mechanical finger design     under-actuated mechanical systems    

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Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterousfinger

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0691-5

Abstract: Based on the concept of mechanical passive compliance, which is widely implemented in robots for interactions, a finger is dedicated to improving mechanical robustness.The mechanical design of the finger and its stiffness adjusting methods are elaborated.Experimental results of the finger joint stiffness identification and finger impact tests under differentfinger stiffness presets are provided to verify the validity of the model.

Keywords： multifingered hand     mechanism design     robot safety     variable stiffness actuator    

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Analysis of the dynamic hysteresis characteristic of finger seal

LEI Yanni, CHEN Guoding

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1,   Pages 32-36 doi: 10.1007/s11465-007-0005-y

Abstract: The research about hysteresis characteristic of finger seal (FS), which was carried out based on the

Keywords： FS     necessary     hysteresis characteristic     optimization     spring    

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Analysis and optimal design of an underactuated finger mechanism for LARM hand

Shuangji YAO, Marco CECCARELLI, Giuseppe CARBONE, Qiang ZHAN, Zhen LU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 332-343 doi: 10.1007/s11465-011-0229-8

Abstract: aims to present general design considerations and optimality criteria for underactuated mechanisms in fingerPerformance characteristics are outlined as referring to several aspects of finger mechanisms.Optimality criteria of the finger performances are formulated after careful analysis.A numerical case of an underactuated robot finger design for Laboratory of Robotics and Mechatronics

Keywords： robotic finger     underactuated mechanisms     design considerations    

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Study on TA2 Sheet Metal Bending With Thermal Stress Induced by Laser and Its Mechanical Properties

Zhou Yijun,Zhang Yongkang,You Wenming,Yin Chen,Zhang Chengyang

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 40-44

Abstract: experiment where 0. 6mm-thickn sheet steel of TA2 was studied to evaluate the process parameters of bending Bending angle was measured as the function of main processing parameters.nbsp;The number of passes ranks first,  followed by laser spot in terms of their effect on the bending

Keywords： laser technology     thermal stress     sheet metal bending     residual stress     micro-hardness    

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Wireless passive flexible accelerometer fabricated using micro-electro-mechanical system technology forbending structure surfaces Research Article

Chen LI, Mangu JIA, Yingping HONG, Yanan XUE, Jijun XIONG,lichen@nuc.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 5,   Pages 801-809 doi: 10.1631/FITEE.2100236

Abstract: wireless passive , which eliminates the difficulty in measuring the acceleration on the surface of a bendingIt can be bent or folded at will, and can be attached firmly to the surface of objects with a bendingthe distance between the antenna and accelerometer was 5 mm, the characterization of the surface of bending

Keywords： Bending structure surfaces     Flexible accelerometer     Micro-electro-mechanical system (MEMS) technology    

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Mechanical Behavior of a Partially Encased Composite Girder with Corrugated Steel Web: Interaction ofShear and Bending

Jun He, Sihao Wang, Yuqing Liu, Zhan Lyu, Chuanxi Li

Engineering 2017, Volume 3, Issue 6,   Pages 806-816 doi: 10.1016/j.eng.2017.11.005

Abstract: buckling of corrugated steel webs and compression steel flanges under large combined shear force and bendingFirst, model tests were carried out on two specimens with different shear spans to investigate the mechanicalExperimental results show that the interaction of shear force and bending moment causes the failure ofThe bending-to-shear ratio does not affect the shear stiffness of a composite girder in the elastic stagesections in the elastic stage satisfy the assumption of the plane section under combined shear force and bending

Keywords： Encased concrete     Composite girder     Corrugated steel web     Interaction of shear and bending    

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A new meshless approach for bending analysis of thin plates with arbitrary shapes and boundary conditions

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1,   Pages 75-85 doi: 10.1007/s11709-021-0798-5

Abstract: An efficient and meshfree approach is proposed for the bending analysis of thin plates.

Keywords： plate     bending     meshless method     collocation    

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Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0961-2

Abstract: This study develops equations to predict the existing pile bending moment and deflection produced byIt is practically unfeasible to obtain measurement data; hence, artificial data for the bending momentThe estimation results of the developed equations can provide satisfactory pile bending moment and deflection

Keywords： pile responses     excavation     prediction     deflection     bending moments    

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growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined torsion and bending

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 905-913 doi: 10.1007/s11709-021-0683-2

Abstract: equipment, such as a pump directly fitted with hanger in the piping system, experiences torsional and bendingHigher crack growth rate occurs because of this torsional load in addition to the bending load.necessary to study the fatigue behavior of piping components under the influence of combined torsional and bending

Keywords： fatigue life     Delale and Erdogan method     RMS–SIF approach     stainless steel     torsion and bending load    

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A novel structural modification to eliminate the early coupling between bending and torsional mode shapes

Nazim Abdul NARIMAN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 2,   Pages 131-142 doi: 10.1007/s11709-016-0376-4

Abstract: novel structural modification approach has been adopted to eliminate the early coupling between the bendingvertical and torsional displacements are calculated at the mid span of the deck to analyze both the bending

Keywords： aeroelastic instability     structural damping     flutter wind speed     bending stiffness     torsional stiffness    

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Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Frontiers of Structural and Civil Engineering   Pages 901-914 doi: 10.1007/s11709-023-0915-8

Abstract: integrity and bearing capacity of segment joints in shield tunnels are associated closely with the mechanicalThis study focuses on the mechanical characteristics and mechanism of a bolted circumferential jointfour stress stages are established to describe the bearing behaviors of the joint under a compressive bending, a parametric investigation is conducted to discuss the factors affecting the ultimate compressive bending

Keywords： shield tunnel     segment joint     joint structural model     failure mechanism    

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A simplified method for investigating the bending behavior of piles supporting embankments on soft ground

Frontiers of Structural and Civil Engineering   Pages 1021-1032 doi: 10.1007/s11709-023-0952-3

Abstract: Previous research has shown that bending failure, particularly during rapid filling on soft ground, isThe results reveal that there are three possible bending failure scenarios for such piles: at the interfaceThe location of the bending failure depends on the position and relative stiffness of the given pile.Furthermore, the effect of embedding a pile into a firm ground layer on the bending behavior was investigatedWhen the embedded length of a pile exceeded a critical value, the bending moment at the interface between

Keywords： bending behavior     pile     embankment     soil−structure interaction     failure mode    

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Erratum to: Bending and vibration of a discontinuous beam with a curvic coupling under different axial

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0709-z

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Title Author Date Type Operation

Soft curvature sensors for measuring the rotational angles of mechanical fingers

Haixiao LIU, Li LI, Zhikang OUYANG, Wei SUN

Journal Article

Analysis of suitable geometrical parameters for designing a tendon-driven under-actuated mechanical finger

Francesco PENTA,Cesare ROSSI,Sergio SAVINO

Journal Article

Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterousfinger

Journal Article

Analysis of the dynamic hysteresis characteristic of finger seal

LEI Yanni, CHEN Guoding

Journal Article

Analysis and optimal design of an underactuated finger mechanism for LARM hand

Shuangji YAO, Marco CECCARELLI, Giuseppe CARBONE, Qiang ZHAN, Zhen LU

Journal Article

Study on TA2 Sheet Metal Bending With Thermal Stress Induced by Laser and Its Mechanical Properties

Zhou Yijun,Zhang Yongkang,You Wenming,Yin Chen,Zhang Chengyang

Journal Article

Wireless passive flexible accelerometer fabricated using micro-electro-mechanical system technology forbending structure surfaces

Chen LI, Mangu JIA, Yingping HONG, Yanan XUE, Jijun XIONG,lichen@nuc.edu.cn

Journal Article

Mechanical Behavior of a Partially Encased Composite Girder with Corrugated Steel Web: Interaction ofShear and Bending

Jun He, Sihao Wang, Yuqing Liu, Zhan Lyu, Chuanxi Li

Journal Article

A new meshless approach for bending analysis of thin plates with arbitrary shapes and boundary conditions

Journal Article

Improved prediction of pile bending moment and deflection due to adjacent braced excavation

Journal Article

growth behavior of a 170 mm diameter stainless steel straight pipe subjected to combined torsion and bending

Journal Article

A novel structural modification to eliminate the early coupling between bending and torsional mode shapes

Nazim Abdul NARIMAN

Journal Article

Analytical algorithms of compressive bending capacity of bolted circumferential joint in metro shield

Journal Article

A simplified method for investigating the bending behavior of piles supporting embankments on soft ground

Journal Article

Erratum to: Bending and vibration of a discontinuous beam with a curvic coupling under different axial

Journal Article