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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 optimizationanalysis, we quantify mechanical (and geometric) advantage in terms of the stiffness elements of the mechanism'sWe then analyze the common formulations of compliant mechanism optimization and the role of the external

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

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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 compliantmechanism is an essential step to achieve such a high accuracy.compliant nanopositioning platform.The 1-DOF platform utilizes a parallelogram guiding mechanism and a parallelogram load mechanism to provide

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 compliantPRBM is proposed to simulate both the tip locus and tip deflection angle of large-deflection links for compliant

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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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 compliant

Keywords： compliant mechanisms     convenient     sensitivity     work     analysis    

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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 stress

Keywords： coupling factors     modelling accuracy     compliant mechanisms     equivalent modulus    

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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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Formation Process and Mechanical Deformation Behavior of a Novel Laser-Printed Compression-Induced Twisting-CompliantMechanism Article

Jie Gao, Dongdong Gu, Chenglong Ma, Donghua Dai, Lixia Xi, Kaijie Lin, Tong Gao, Jihong Zhu, Yuexin Du

Engineering 2022, Volume 15, Issue 8,   Pages 133-142 doi: 10.1016/j.eng.2021.03.032

Abstract:

A novel compression-induced twisting (CIT)-compliant mechanism was designed based on the freedom andmechanism were studied.mechanism with the applied laser powers were not apparent.The deformation behavior of the CIT-compliant mechanism fabricated by means of LPBF exhibited four typicalmechanism.

Keywords： Laser 3D printing     Laser powder bed fusion     Compression-induced twisting-compliant mechanism     Compression–torsion    

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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 microelectromechanicalthe conceptual design of CTJs via three approaches: parallelogram based method, straight-line motion mechanismNew CTJs are proposed using three approaches, including an asymmetric double parallelogram mechanismwith slaving mechanism, several compact and symmetric double parallelogram mechanisms with slaving mechanisms

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

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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 compliant

Keywords： compliant mechanisms     robust topology optimization     hinges     uncertainty     bounded field    

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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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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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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: Though sliding friction force is inevitable because no rollers were used in the cam-based mechanism,

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 399-411 doi: 10.1007/s11465-010-0116-8

Abstract: Conceptual design is the most critical and creative phase of design. Recently, increasing attention has been directed to supporting conceptual-level computer aided creative design and its theories and methodologies. Specifically, for conceptual design of mechanical products, this paper presents a novel function solving model for mechanical product design and highlights the importance of systematic synthesis to achieve creative design. Then it builds a framework as a function-effect-process-action- mechanisms (FEPAM) mapping process, which enables creative design on the basis of conceiving different action schemes. After that, several key points are elaborated including 1) representing and decomposition methods of functions and motion behaviors; 2) action scheme representing method based on network plan techniques; and 3) variation and creation methods based on action scheme transformations.

Keywords： mechanism system creative design     process model     function solving model     process action procedure     mechanismsknowledge base     principle of mechanism system composition    

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Title Author Date Type Operation

Mechanical and geometric advantages in compliant mechanism optimization

Michael Yu WANG

Journal Article

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

Ruizhou WANG, Xianmin ZHANG

Journal Article

Modeling of large-deflection links for compliant mechanisms

Zhonglei FENG, Yueqing YU, Wenjing WANG,

Journal Article

Untethered quadrupedal hopping and bounding on a trampoline

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

Journal Article

Analysis of frequency characteristics of compliant mechanisms

WANG Wenjing, YU Yueqing

Journal Article

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

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

Journal Article

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

Guangbo HAO,Jingjun YU,Haiyang LI

Journal Article

Formation Process and Mechanical Deformation Behavior of a Novel Laser-Printed Compression-Induced Twisting-CompliantMechanism

Jie Gao, Dongdong Gu, Chenglong Ma, Donghua Dai, Lixia Xi, Kaijie Lin, Tong Gao, Jihong Zhu, Yuexin Du

Journal Article

Conceptual design of compliant translational joints for high-precision applications

Guangbo HAO,Haiyang LI,Xiuyun HE,Xianwen KONG

Journal Article

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

Junjie ZHAN, Yangjun LUO

Journal Article

Conceptual design of compliant mechanisms using level set method

Shi-kui CHEN, Michael Yu WANG

Journal Article

Manufacturing error analysis of compliant 3-DOF microrobot

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

Journal Article

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

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

Theory and method of mechanism system design

Huijun ZOU, Qinghua LIANG, Qing ZHANG

Journal Article