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Landing control method of a lightweight four-legged landing and walking robot

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0707-1

Abstract: A lightweight four-legged landing and walking robot called “FLLWR” is designed in this study.integrates the functions of a lander and a rover, including folding, deploying, repetitive landing, and walking

Keywords： landing and walking robot lunar exploration buffer landing compliance control

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Vibration Serviceability of Large-span Steel–Concrete Composite Beam with Precast Hollow Core Slabs Under Walking Article

Jiepeng Liu, Shu Huang, Jiang Li, Y. Frank Chen

Engineering 2022, Volume 19, Issue 12, Pages 93-104 doi: 10.1016/j.eng.2021.04.025

Abstract: To alleviate vibrations, both the walking forces excited by humans and the associated floor responsesIn this study, 150 load–time histories of walking, excited by 25 test participants, are obtainedusing a force measuring plate.The dynamic loading factors and phase angles in the Fourier series functions for one-step walking areSubsequently, walking tests are performed on seven CBHCS specimens to capture the essential dynamic properties

Keywords： Composite beam Hollow core slab Walking force Floor vibration Mode shape

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Footholds optimization for legged robots walking on complex terrain

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0742-y

Abstract: This paper proposes a novel continuous footholds optimization method for legged robots to expand their walkingagainst slipping or tripping on the edge of obstacles, and to improve its stability and safety when walkingWe successfully implemented the algorithm on a hexapod robot, and verified its feasibility in a walking

Keywords： footholds optimization legged robot complex terrain adapting hexapod robot locomotion control

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A feasibility study on the design and walking operation of a biped locomotor via dynamic simulation

Mingfeng WANG,Marco CECCARELLI,Giuseppe CARBONE

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2, Pages 144-158 doi: 10.1007/s11465-016-0391-0

Abstract:

A feasibility study on the mechanical design and walking operation of a Cassino biped locomotor isPlanning of the biped walking gait is performed by coordinating the motions of the two leg mechanismsMSC.ADAMS^® environment with the aims of characterizing and evaluating the dynamic walkingproposed biped locomotor with proper input motions of linear actuators performs practical and feasible walkingof the biped locomotor is built for the purpose of evaluating the operation performance of the biped walking

Keywords： feasibility study biped locomotor biped walking mechanical design dynamic simulation tripod leg mechanism

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Image-based fall detection and classification of a user with a walking support system

Sajjad TAGHVAEI, Kazuhiro KOSUGE

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3, Pages 427-441 doi: 10.1007/s11465-017-0465-7

Abstract: This study investigates an image-based classification of the human state while using a walking supportpossible human behavior while utilizing a walker robot into eight states (i.e., sitting, standing, walkingThe first method shows that the centroid position follows a normal distribution while walking, whichcan be adopted to detect any non-walking state.the motion of a passive-type walker (called “RT Walker”) by activating its brakes in non-walking

Keywords： fall detection walking support hidden Markov model multivariate analysis

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Harvesting biomechanical energy in the walking by shoe based on liquid metal magnetohydrodynamics

Dan DAI, Jing LIU, Yixin ZHOU

Frontiers in Energy 2012, Volume 6, Issue 2, Pages 112-121 doi: 10.1007/s11708-012-0186-x

Abstract: system (LMMGS) was proposed and demonstrated in this paper for collecting parasitic power in shoe while walkingWhile walking with the LMMGS, the foot alternately presses the two liquid metal pumps (LMPs) which are

Keywords： human energy harvesting liquid metal wearable magnetohydrodynamics generator parasitic power in shoe

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A novel six-legged walking machine tool for

Jimu LIU, Yuan TIAN, Feng GAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 351-364 doi: 10.1007/s11465-020-0594-2

Abstract: This study proposes a novel six-legged walking machine tool consisting of a legged mobile robot and aThe repeatability of the head motion, body motion, and walking distance is evaluated through experimentsFinally, an application scenario is shown in which the walking machine tool steps successfully over arationality of the hierarchical motion planning scheme and demonstrate the extensive potential of the walking

Keywords： legged robot parallel mechanism mobile machine tool in-situ machining

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Modeling limit force capacities of high force to volume lead extrusion dampers

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3, Pages 609-622 doi: 10.1007/s11709-021-0724-x

Abstract: Small volumetric sizes and high force capacities define high-force-to-volume (HF2V) devices, which canHowever, the design of such devices for specific force capacities has proven difficult based on the complexitiesThis study developed upper- and lower-bound force capacity estimates from analytical mechanics basedThe proposed models were validated by comparing the predicted bounds to experimental force capacity data/sub>) pair has a mean lower-bound gap of 36%, meaning the lower bound was 74% of the actual device force

Keywords： extrusion lead dampers upper and lower bound analytical modelling limit force

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An experimental analysis of human straight walking

Tao LI, Marco CECCARELLI

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 95-103 doi: 10.1007/s11465-013-0357-4

Abstract:

In this paper, an experimental analysis of human straight walking has been presented.Experiments on human walking were carried out by using Cassino tracking system which is a passive cable-basedanalyzed; forces that are exerted against cables by the limb of a person under test have been measured by forceFurthermore, by using experimental tests, modeling and characterization of the human straight walking

Keywords： human locomotion walking gait characterization humanoid robot biped robot

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Quality control based on electrode displacement and force in resistance spot welding

Chuntao JI, Lipeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4, Pages 412-417 doi: 10.1007/s11465-010-0114-x

Abstract: The behaviors of electrode displacement and force during spot welding under various conditions, suchAn electrode force peak is observed and believed relevant to the sufficient nugget size.

Keywords： aluminum electrode displacement electrode force nugget size data acquisition

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Visualization of force networks in 2D dense granular materials

Jianguo LIU, Qicheng SUN, Feng JIN,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1, Pages 109-115 doi: 10.1007/s11709-010-0003-8

Abstract: To understand the structure and evolution of force chains, a photoelastic technique was improved forThe interparticle contact force distribution was found a peak around the mean value, a roughly exponentialtail for greater force and a dip toward zero for smaller force.The force chain network around the probe tip was depicted, and the contact angle distribution of particlesin force chains was found to be well aligned in the directions of major principal stress.

Keywords： granular matter force chain multiscale modeling

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Motion/force transmission indices of parallel manipulators

Xinjun LIU, Chao WU, Fugui XIE

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1, Pages 89-91 doi: 10.1007/s11465-011-0215-1

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Applications of atomic force microscopy in immunology

Jiping Li, Yuying Liu, Yidong Yuan, Bo Huang

Frontiers of Medicine 2021, Volume 15, Issue 1, Pages 43-52 doi: 10.1007/s11684-020-0769-6

Abstract: The principle of atomic force microscopy (AFM) and its three running modes are introduced for the mechanicalThe peak force tapping mode provides the most delicate and desirable virtues to collect high-resolutionimages of morphology and force curves.

Keywords： cellular mechanics atomic force microscopy neutrophil extracellular trap macrophage phagocytosis pore

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Recognition of walking environments and gait period by surface electromyography Special Feature on Intelligent Robats

Seulki KYEONG, Wonseok SHIN, Minjin YANG, Ung HEO, Ji-rou FENG, Jung KIM

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 3, Pages 342-352 doi: 10.1631/FITEE.1800601

Abstract: Before using a lower limb exoskeleton to help in walking, the aim of this work is to distinguish thewalking environment and gait period using various sensors, including the surface electromyography (sEMGFor this purpose, a gait experiment was performed on four subjects using the ground reaction force, human–robotinteraction force, and position sensors with sEMG sensors.The purpose of this paper is to show progress with the use of sEMG when recognizing walking environments

Keywords： Walking environment Gait Period Surface electromyography (sEMG) Exoskeleton

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Non-convex sparse optimization-based impact force identification with limited vibration measurements

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0762-2

Abstract: Impact force identification is important for structure health monitoring especially in applications involvingDifferent from the traditional direct measurement method, the impact force identification technique isAs a typical inverse problem, impact force reconstruction and localization is a challenging task, whichMJX-TeXAtom-ORD">-ADMM is applied to solve the impact forceidentification problem with unknown force locations, which can realize simultaneous impact localization

Keywords： impact force identification inverse problem sparse regularization under-determined condition alternating