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Design and locomotion analysis of two kinds of rolling expandable mobile linkages with a single degree

Yanlin HAO, Yaobin TIAN, Jianxu WU, Yezhuo LI, Yan-An YAO

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3, Pages 365-373 doi: 10.1007/s11465-020-0585-3

Abstract: This study presents two kinds of rolling robots that are able to roll by deforming their outer shapesDynamic rolling process is further analyzed on the basis of zero moment point method, and a morphingstrategy is proposed to guarantee a stable dynamic rolling process.A novel passive rolling locomotion is also developed, which enables the robots to roll and stand on aTo verify the design, two prototypes are manufactured, wherein the dynamic and passive rolling locomotion

Keywords： rolling locomotion expandable mechanism mechanism design zero moment point (ZMP) analysis

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Terrain classification and adaptive locomotion for a hexapod robot Qingzhui

Yue ZHAO, Feng GAO, Qiao SUN, Yunpeng YIN

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2, Pages 271-284 doi: 10.1007/s11465-020-0623-1

Abstract: The knowledge of various ground properties and adaptive locomotion based on different surface materialsA terrain classification and adaptive locomotion method for a hexapod robot named Qingzhui is proposedThen, an adaptive locomotion on different ground properties is proposed.

Keywords： terrain classification hexapod robot legged robot adaptive locomotion gait control

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A rolling 6U parallel mechanism

Zhihuai MIAO, Yanan YAO

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1, Pages 96-98 doi: 10.1007/s11465-011-0214-2

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Novel probabilistic rolling regular tetrahedron mechanism

Yonghan GUAN, Yan’an YAO, Chao LIU, Ruiming LI

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 2, Pages 363-378 doi: 10.1007/s11465-020-0628-9

Abstract: In this study, a novel mechanism that can conduct probabilistic rolling is proposed to reach a designatedAccording to mobility and kinematic analyses, the mechanism can implement probabilistic rolling.Each rolling gait has three probable rolling directions, and the mechanism rolls in one of the threeFurthermore, the mathematical principle of probabilistic rolling is revealed in terms of probabilityTo achieve the rolling function, the design of the linear actuators is improved, and the extension ratio

Keywords： mobile mechanism probabilistic motion rolling mechanism stochastic motion

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Design of a cyclic inhibitory CPG controller for the locomotion of a snakelike robot

LU Zhen-li, MA Shu-gen, LI Bin, WANG Yue-chao

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 4, Pages 396-402 doi: 10.1007/s11465-006-0046-7

Abstract: The rhythmic locomotion of a creature is a self-excitation behavior of the CPG (central pattern generatorparameter setting of the CPG controller to modulate the number of S shapes, the curve of the body shape, locomotionvelocity, and the curve of the locomotion trajectory for serpentine locomotion.Moreover, we demonstrated that Perambulator-I can successfully exhibit serpentine locomotion by using

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Contact detection with multi-information fusion for quadruped robot locomotion under unstructured terrain

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0760-4

Abstract: Reliable foot-to-ground contact state detection is crucial for the locomotion control of quadruped robots

Keywords： multi-information fusion contact detection quadruped robot probabilistic contact model unstructured terrain

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A rolling 3-UPU parallel mechanism

Zhihuai MIAO, Yan’an YAO, Xianwen KONG

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4, Pages 340-349 doi: 10.1007/s11465-013-0282-6

Abstract:

A novel rolling mechanism is proposed based on a 3-UPU parallel mechanism in this paper.The rolling mechanism is composed of two platforms connected by three UPU (universal-prismatic-universalFour rolling modes of the mechanism are discussed and simulated.The feasibility of the rolling mechanism is verified by means of a physical prototype.Finally, its terrain adaptability is enhanced through planning the rolling gaits.

Keywords： parallel mechanism rolling mechanism screw theory

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Research and industrialization of near-net rolling technology used in shaft parts

Zhenghuan HU, Baoyu WANG, Zhenhua ZHENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 17-24 doi: 10.1007/s11465-018-0480-3

Abstract:

Shaft part rolling is an efficient and green near-net shaping technology offering many advantages,In this paper, the features of shaft part rolling are introduced along with the working principles oftwo main shaft part rolling technologies, namely, cross wedge rolling (CWR) and skew rolling (SR).Finally, the latest developments in shaft part rolling are presented, including SR steel balls, preciseAlthough the shaft part rolling technology has been widely used in China, it only accounts for about

Keywords： cross wedge rolling skew rolling near-net rolling shaft part

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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-based measuring system. This system is adopted because it is capable of both pose and wrench measurements with fairly simple monitoring of operation. By using experimental results, trajectories of a human limb extremity and its posture have been analyzed; forces that are exerted against cables by the limb of a person under test have been measured by force sensors as well. Furthermore, by using experimental tests, modeling and characterization of the human straight walking gait have been proposed.

Keywords： human locomotion walking gait characterization humanoid robot biped robot

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Outline of Strip Rolling Technological Control Theory

Zhang Jinzhi

Strategic Study of CAE 2001, Volume 3, Issue 4, Pages 46-55

Abstract:

Classical rolling theory, which is based on the law of the lowest resistance,the condition of constantvolume and the condition of equal flow per second,has formed a fairly integrated rolling applied technologyThis system reflects only the static law of rolling process,so it is necessary to control dynamic rollingtheory, classical rolling theory based on mechanics took the lead before the establishment of springA new theory system, which is based on fundamental rolling technology control theory, is set up.

Keywords： continuous rolling process control tension in continuous rolling gauge control shape stiffness springequation for rolling mill comprehensive equal reserves for load distribution

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Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1, Pages 33-43 doi: 10.1007/s11465-016-0373-2

Abstract:

The development of rolling-element bearings in China has spanned a long period.Based on several typical and important cases, the present article reconstructs the history of rolling-elementThe first stage represents the origin of rolling bearings in China, which remains controversial becauseAnother type of spherical thrust bearings with rolling elements, which is a key component of a traditionalMoreover, over the last 100 years, the modern rolling bearing industry was gradually established in China

Keywords： bearing movement rolling-element bearing China early rolling bearings technology transfer

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simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling

Yan GU, Yonglin JU

Frontiers in Energy 2012, Volume 6, Issue 1, Pages 21-28 doi: 10.1007/s11708-012-0173-2

Abstract: in order to understand the periodically oscillating pressure characteristics of inviscid flow in the rollingThe computational model of the circular pipe flow is established with the excitated rolling motion, atFurthermore, theoretical analyses of the flow in the rolling circular pipe are conducted and the results

Keywords： pressure fluctuation rolling floating production storage and offloading unit for liquefied natural gas

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Review of the damage mechanism in wind turbine gearbox bearings under rolling contact fatigue

Yun-Shuai SU, Shu-Rong YU, Shu-Xin LI, Yan-Ni HE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4, Pages 434-441 doi: 10.1007/s11465-018-0474-1

Abstract: Gearbox bearings are subjected to rolling contact fatigue (RCF) and they are observed to fail due to

Keywords： rolling contact fatigue (RCF) white etching area (WEA) white etching crack (WEC) adiabatic shear band

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Durability of plasma-sprayed Cr3C2-NiCr coatings under rolling contact conditions

Xiancheng ZHANG, Fuzhen XUAN, Shantung TU, Binshi XU, Yixiong WU

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 1, Pages 118-135 doi: 10.1007/s11465-011-0127-0

Abstract:

The aim of this paper was to address the rolling contact fatigue (RCF) failure mechanisms ofamplitude can be used as a key parameter to predict the initiation of subsurface cracks within coating in rolling

Keywords： rolling contact fatigue coating Weibull distribution failure mode mechanism

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An adaptive data-driven method for accurate prediction of remaining useful life of rolling bearings

Yanfeng PENG, Junsheng CHENG, Yanfei LIU, Xuejun LI, Zhihua PENG

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2, Pages 301-310 doi: 10.1007/s11465-017-0449-7

Abstract: ) and distance evaluation technique (DET) is proposed to predict the remaining useful life (RUL) of rollingFinally, least squares support vector machine is utilized to predict the RUL of rolling bearings.Experimental results indicate that the proposed method reliably predicts the RUL of rolling bearings.

Keywords： Gaussian mixture model distance evaluation technique health state remaining useful life rolling bearing