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Mechanical and geometric advantages in compliant mechanism optimization

Michael Yu WANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3, Pages 229-241 doi: 10.1007/s11465-009-0066-1

Abstract: This paper presents a focused examination of the mechanical and geometric advantages in compliant mechanismsand their ramifications in the design formulations of compliant mechanisms posed as a topology optimizationWe then analyze the common formulations of compliant mechanism optimization and the role of the externalAs a result, the topology optimization generates point flexures in the resulting optimal mechanisms.

Keywords： compliant mechanisms topology optimization mechanical advantage pseudo rigid-body mechanisms

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Robust topology optimization of hinge-free compliant mechanisms with material uncertainties based on

Junjie ZHAN, Yangjun LUO

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2, Pages 201-212 doi: 10.1007/s11465-019-0529-y

Abstract: This paper presents a new robust topology optimization framework for hinge-free compliant mechanismsRobust topology optimization of compliant mechanisms is then defined to minimize the variation in outputillustrate the effectiveness of the proposed method for circumventing hinges in topology optimization of compliantmechanisms.

Keywords： compliant mechanisms robust topology optimization hinges uncertainty bounded field

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Analysis of frequency characteristics of compliant mechanisms

WANG Wenjing, YU Yueqing

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3, Pages 267-271 doi: 10.1007/s11465-007-0046-2

Abstract: Much work is needed for a further study on the dynamic analysis of compliant mechanisms to improve theirThis paper uses the finite element method to develop a dynamic equation of the compliant mechanism.results indicate that the design parameters have an impact on the frequency characteristics of the compliantmechanisms and the proposed method is more accurate and convenient for analyzing frequency characteristics

Keywords： compliant mechanisms convenient sensitivity work analysis

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Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 2, Pages 131-145 doi: 10.1007/s11465-006-0018-y

Abstract: We propose a level set method-based framework for the conceptual design of compliant mechanisms.In this method, the compliant mechanism design problem is recast as an infinite dimensional optimizationproblem, where the design variable is the geometric shape of the compliant mechanism and the goal isThe geometric shape of the compliant mechanism is represented as the zero level set of a one-higher dimensional

Keywords： splitting minimum dimensional optimization Hamilton-Jacobi topological

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A brief review on nonlinear modeling methods and applications of compliant mechanisms

Guangbo HAO,Jingjun YU,Haiyang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2, Pages 119-128 doi: 10.1007/s11465-016-0387-9

Abstract:

Compliant mechanisms (CMs) have become one of the most popular research themes in mechanisms and robotics

Keywords： compliant mechanisms modelling nonlinearity applications review

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Understanding coupled factors that affect the modelling accuracy of typical planar compliant mechanisms

Guangbo HAO,Haiyang LI,Suzen KEMALCAN,Guimin CHEN,Jingjun YU

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 2, Pages 129-134 doi: 10.1007/s11465-016-0392-z

Abstract:

In order to accurately model compliant mechanism utilizing plate flexures, qualitative planar stressto reflect coupled factors in affecting the modelling accuracy of two typical distributed-compliance mechanisms

Keywords： coupling factors modelling accuracy compliant mechanisms equivalent modulus

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Conceptual design of compliant translational joints for high-precision applications

Guangbo HAO,Haiyang LI,Xiuyun HE,Xianwen KONG

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 4, Pages 331-343 doi: 10.1007/s11465-014-0321-y

Abstract:

Compliant translational joints (CTJs) have been extensively used in precision engineering and microelectromechanicalparallelogram mechanism with slaving mechanism, several compact and symmetric double parallelogram mechanismswith slaving mechanisms and a general CTJ using the center drift compensation and a CTJ using Roberts

Keywords： compliant mechanisms translational joints conceptual design parallelogram straight-line motion combination

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Preload characteristics identification of the piezoelectric-actuated 1-DOF compliant nanopositioning

Ruizhou WANG, Xianmin ZHANG

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1, Pages 20-36 doi: 10.1007/s11465-015-0328-z

Abstract:

Packaged piezoelectric ceramic actuators (PPCAs) and compliant mechanisms are attractive for nanopositioningThe way to create and keep a proper and steady connection between both ends of the PPCA and the compliantThis paper presents a novel external preload mechanism and tests it in a 1-degree of freedom (1-DOF) compliant

Keywords： nanopositioning preload characteristic packaged piezoelectric ceramic actuator compliant mechanism

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Modeling of large-deflection links for compliant mechanisms

Zhonglei FENG, Yueqing YU, Wenjing WANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3, Pages 294-301 doi: 10.1007/s11465-010-0019-8

Abstract: has one degree of freedom (DOF) and performs a good simulation to the tip locus of flexible links for compliantmechanisms on the basis of a parametric approximation method.PRBM is proposed to simulate both the tip locus and tip deflection angle of large-deflection links for compliantmechanisms on the basis of the angular deflection approximation technique.

Keywords： compliant mechanism pseudo-rigid-body model (PRBM) large-deflection link angular deflection approximation

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Untethered quadrupedal hopping and bounding on a trampoline

Boxing WANG, Chunlin ZHOU, Ziheng DUAN, Qichao ZHU, Jun WU, Rong XIONG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2, Pages 181-192 doi: 10.1007/s11465-019-0559-5

Abstract: For quadruped robots with springy legs, a successful jump usually requires both suitable elastic parts and well-designed control algorithms. However, these two problems are mutually restricted and hard to solve at the same time. In this study, we attempt to solve the problem of controller design with the help of a robot without any elastic mounted parts, in which the untethered robot is made to jump on a trampoline. The differences between jumping on hard surfaces with springy legs and jumping on springy surfaces with rigid legs are briefly discussed. An intuitive control law is proposed to balance foot contact forces; in this manner, excessive pitch oscillation during hopping or bounding can be avoided. Hopping height is controlled by tuning the time delay of the leg stretch. Together with other motion generators based on kinematic law, the robot can perform translational and rotational movements while hopping or bounding on the trampoline. Experiments are conducted to validate the effectiveness of the proposed control framework.

Keywords： hopping and bounding gait compliant mechanism compliant contact balance control strategy legged locomotion

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Manufacturing error analysis of compliant 3-DOF microrobot

CHAO Dai-hong, LIU Rong, WU Yue-min, SHI Long, ZONG Guang-hua

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 3, Pages 299-304 doi: 10.1007/s11465-006-0030-2

Abstract: Conclusions drawn from the experiments can be used to instruct the design of compliant parallel mechanisms

Keywords： centerline stiffness effective manipulator precision

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Mechatronic design of a novel linear compliant positioning stage with large travel range and high out-of-plane

Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2, Pages 265-278 doi: 10.1007/s11465-017-0453-y

Abstract: In this study, a 2-degree-of-freedom linear compliant positioning stage (LCPS) is developed by mechatronic

Keywords： mechatronic design linear compliant positioning stage large travel range high out-of-plane payload capacity

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FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1, Pages 1-3 doi: 10.15302/J-FASE-2023491

Abstract: FOOD SYSTEMS TRANSFORMATION: CONCEPTS, MECHANISMS AND PRACTICES

Keywords： TRANSFORMATION SYSTEMS FOOD CONCEPTS MECHANISMS

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Gripping mechanisms in current wood harvesting machines

D. GOUBET, J. C. FAUROUX, G. GOGU

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1, Pages 42-61 doi: 10.1007/s11465-013-0358-3

Abstract:

This paper focuses on the structural synthesis of gripping mechanisms used in the mechanization ofThis function is performed with several typical mechanisms which are listed and described in this articleThis study distinguishes two kinds of planar gripping mechanisms mainly used in opening and closing theTwo planar and one spatial existing mechanisms are described.Nine kinematic diagrams of spatial parallel mechanisms are provided.

Keywords： structural synthesis parallel mechanisms gripping mechanisms wood harvesting harvesting head

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Recent development on innovation design of reconfigurable mechanisms in China

Wuxiang ZHANG, Shengnan LU, Xilun DING

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 1, Pages 15-20 doi: 10.1007/s11465-018-0517-7

Abstract: Reconfigurable mechanisms can deliberately reconfigure themselves by rearranging the connectivity ofMetamorphic and origami-derived mechanisms are two kinds of typical reconfigurable mechanisms, whichhave attracted increasing attention in the field of mechanisms since they were proposed.This paper presents an overview of recent developments in innovation design of reconfigurable mechanismsin China, including metamorphic and origami mechanisms and their typical applications.

Keywords： innovation design reconfigurable mechanisms metamorphic mechanisms origami-derived mechanisms development