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Mechanical and geometric advantages in compliant mechanism optimization
Michael Yu WANG
《机械工程前沿(英文)》 2009年 第4卷 第3期 页码 229-241 doi: 10.1007/s11465-009-0066-1
关键词: compliant mechanisms topology optimization mechanical advantage pseudo rigid-body mechanisms
Preload characteristics identification of the piezoelectric-actuated 1-DOF compliant nanopositioning
Ruizhou WANG, Xianmin ZHANG
《机械工程前沿(英文)》 2015年 第10卷 第1期 页码 20-36 doi: 10.1007/s11465-015-0328-z
Packaged piezoelectric ceramic actuators (PPCAs) and compliant mechanisms are attractive for nanopositioning and nanomanipulation due to their ultra-high precision. The way to create and keep a proper and steady connection between both ends of the PPCA and the compliant mechanism is an essential step to achieve such a high accuracy. The connection status affects the initial position of the terminal moving plate, the positioning accuracy and the dynamic performance of the nanopositioning platform, especially during a long-time or high-frequency positioning procedure. This paper presents a novel external preload mechanism and tests it in a 1-degree of freedom (1-DOF) compliant nanopositioning platform. The 1-DOF platform utilizes a parallelogram guiding mechanism and a parallelogram load mechanism to provide a more accurate actual input displacement and output displacement. The simulation results verify the proposed stiffness model and dynamic model of the platform. The values of the preload displacement, actual input displacement and output displacement can be measured by three capacitive sensors during the whole positioning procedure. The test results show the preload characteristics vary with different types or control modes of the PPCA. Some fitting formulas are derived to describe the preload displacement, actual input displacement and output displacement using the nominal elongation signal of the PPCA. With the identification of the preload characteristics, the actual and comprehensive output characteristics of the PPCA can be obtained by the strain gauge sensor (SGS) embedded in the PPCA.
关键词: nanopositioning preload characteristic packaged piezoelectric ceramic actuator compliant mechanism
Modeling of large-deflection links for compliant mechanisms
Zhonglei FENG, Yueqing YU, Wenjing WANG,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 294-301 doi: 10.1007/s11465-010-0019-8
关键词: compliant mechanism pseudo-rigid-body model (PRBM) large-deflection link angular deflection approximation
Untethered quadrupedal hopping and bounding on a trampoline
Boxing WANG, Chunlin ZHOU, Ziheng DUAN, Qichao ZHU, Jun WU, Rong XIONG
《机械工程前沿(英文)》 2020年 第15卷 第2期 页码 181-192 doi: 10.1007/s11465-019-0559-5
关键词: hopping and bounding gait compliant mechanism compliant contact balance control strategy legged locomotion control quadruped robot
Analysis of frequency characteristics of compliant mechanisms
WANG Wenjing, YU Yueqing
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 267-271 doi: 10.1007/s11465-007-0046-2
关键词: compliant mechanisms convenient sensitivity work analysis
Guangbo HAO,Haiyang LI,Suzen KEMALCAN,Guimin CHEN,Jingjun YU
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 129-134 doi: 10.1007/s11465-016-0392-z
In order to accurately model compliant mechanism utilizing plate flexures, qualitative planar stress (Young’s modulus) and planar strain (plate modulus) assumptions are not feasible. This paper investigates a quantitative equivalent modulus using nonlinear finite element analysis (FEA) to reflect coupled factors in affecting the modelling accuracy of two typical distributed-compliance mechanisms. It has been shown that all parameters have influences on the equivalent modulus with different degrees; that the presence of large load-stiffening effect makes the equivalent modulus significantly deviate from the planar assumptions in two ideal scenarios; and that a plate modulus assumption is more reasonable for a very large out-of-plane thickness if the beam length is large.
关键词: coupling factors modelling accuracy compliant mechanisms equivalent modulus
A brief review on nonlinear modeling methods and applications of compliant mechanisms
Guangbo HAO,Jingjun YU,Haiyang LI
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 119-128 doi: 10.1007/s11465-016-0387-9
Compliant mechanisms (CMs) have become one of the most popular research themes in mechanisms and robotics because of their merits. This paper aims to provide a brief systematic review on the advances of nonlinear static modeling approaches and the applications of CMs to promote interdisciplinary/multidisciplinary development for associated theories and other new applications. It also predicts likely future directions of applications and theory development.
关键词: compliant mechanisms modelling nonlinearity applications review
一种新型激光打印压缩诱导扭转柔顺机构的成型过程和力学变形行为 Article
高捷, 顾冬冬, 马成龙, 戴冬华, 席丽霞, 林开杰, 高彤, 朱继宏, 杜月欣
《工程(英文)》 2022年 第15卷 第8期 页码 133-142 doi: 10.1016/j.eng.2021.03.032
本文采用激光粉末床熔融(LPBF)技术成型了一种基于自由约束拓扑(FACT)方法设计的新型压缩诱导扭转(CIT)柔顺机构。研究了LPBF 打印参数对激光打印CIT 柔顺机构成型性和压缩性能的影响。在375~450 W的优化激光功率范围内,样品的致密化水平均保持在98%以上,所获得的LPBF制造的CIT柔顺机构的相对密度随施加激光功率的变化不明显。增加激光功率有利于消除CIT 柔顺机构斜杆内的残余冶金孔隙。在450 W的激光功率下实现了0.2%的最高尺寸精度和20 μm的最低表面粗糙度。LPBF成型CIT柔顺机构的变形行为表现为四个典型阶段:弹性阶段、非均匀塑性变形阶段、强度破坏阶段和变形破坏阶段(或不稳定变形阶段)。采用450 W激光功率最优成形的CIT 柔顺机构在破坏前的累积压缩应变可达20%,展现了较大的变形能力。通过有限元模拟和实验验证相结合的方法,研究了CIT 柔顺机构的扭转行为和力学性能。在LPBF成型CIT柔顺机构的应变达到15%之前实现了轴向压缩应变与旋转角度之间的近似线性关系。
关键词: 激光3D打印 激光粉末床熔融 压缩诱导扭转柔顺机构 压缩-扭转性能 力学性能
Conceptual design of compliant translational joints for high-precision applications
Guangbo HAO,Haiyang LI,Xiuyun HE,Xianwen KONG
《机械工程前沿(英文)》 2014年 第9卷 第4期 页码 331-343 doi: 10.1007/s11465-014-0321-y
Compliant translational joints (CTJs) have been extensively used in precision engineering and microelectromechanical systems (MEMS). There is an increasing need for designing higher-performance CTJs. This paper deals with the conceptual design of CTJs via three approaches: parallelogram based method, straight-line motion mechanism based method and combination based method. Typical emerging CTJ designs are reviewed by explaining their design principles and qualitatively analyzing their characteristics. New CTJs are proposed using three approaches, including an asymmetric double parallelogram mechanism with slaving mechanism, several compact and symmetric double parallelogram mechanisms with slaving mechanisms and a general CTJ using the center drift compensation and a CTJ using Roberts linkage and several combination designs. This paper provides an overview of the current advances/progresses of CTJ designs and lays the foundation for further optimization, quantitative analysis and characteristic comparisons.
关键词: compliant mechanisms translational joints conceptual design parallelogram straight-line motion combination method
Robust topology optimization of hinge-free compliant mechanisms with material uncertainties based on
Junjie ZHAN, Yangjun LUO
《机械工程前沿(英文)》 2019年 第14卷 第2期 页码 201-212 doi: 10.1007/s11465-019-0529-y
关键词: compliant mechanisms robust topology optimization hinges uncertainty bounded field
Conceptual design of compliant mechanisms using level set method
Shi-kui CHEN, Michael Yu WANG
《机械工程前沿(英文)》 2006年 第1卷 第2期 页码 131-145 doi: 10.1007/s11465-006-0018-y
关键词: splitting minimum dimensional optimization Hamilton-Jacobi topological
Manufacturing error analysis of compliant 3-DOF microrobot
CHAO Dai-hong, LIU Rong, WU Yue-min, SHI Long, ZONG Guang-hua
《机械工程前沿(英文)》 2006年 第1卷 第3期 页码 299-304 doi: 10.1007/s11465-006-0030-2
Hua LIU, Xin XIE, Ruoyu TAN, Lianchao ZHANG, Dapeng FAN
《机械工程前沿(英文)》 2017年 第12卷 第2期 页码 265-278 doi: 10.1007/s11465-017-0453-y
Most of the XY positioning stages proposed in previous studies are mainly designed by considering only a single performance indicator of the stage. As a result, the other performance indicators are relatively weak. In this study, a 2-degree-of-freedom linear compliant positioning stage (LCPS) is developed by mechatronic design to balance the interacting performance indicators and realize the desired positioning stage. The key parameters and the coupling of the structure and actuators are completely considered in the design. The LCPS consists of four voice coil motors (VCMs), which are conformally designed for compactness, and six spatial leaf spring parallelograms. These parallelograms are serially connected for a large travel range and a high out-of-plane payload capacity. The mechatronic model is established by matrix structural analysis for structural modeling and by Kirchhoff’s law for the VCMs. The sensitivities of the key parameters are analyzed, and the design parameters are subsequently determined. The analytical model of the stage is confirmed by experiments. The stage has a travel range of 4.4 mm× 7.0 mm and a 0.16% area ratio of workspace to the outer dimension of the stage. The values of these performance indicators are greater than those of any existing stage reported in the literature. The closed-loop bandwidth is 9.5 Hz in both working directions. The stage can track a circular trajectory with a radius of 1.5 mm, with 40 mm error and a resolution of lower than 3 mm. The results of payload tests indicate that the stage has at least 20 kg out-of-plane payload capacity.
关键词: mechatronic design linear compliant positioning stage large travel range high out-of-plane payload capacity spatial parallelogram voice coil motor sensitivity analysis
New nonlinear stiffness actuator with predefined torque‒deflection profile
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0721-3
关键词: compliant actuator nonlinear stiffness actuator nonlinear spring predefined torque−deflection profile
Theory and method of mechanism system design
Huijun ZOU, Qinghua LIANG, Qing ZHANG
《机械工程前沿(英文)》 2010年 第5卷 第4期 页码 399-411 doi: 10.1007/s11465-010-0116-8
关键词: mechanism system creative design process model function solving model process action procedure mechanisms knowledge base principle of mechanism system composition
标题 作者 时间 类型 操作
Preload characteristics identification of the piezoelectric-actuated 1-DOF compliant nanopositioning
Ruizhou WANG, Xianmin ZHANG
期刊论文
Modeling of large-deflection links for compliant mechanisms
Zhonglei FENG, Yueqing YU, Wenjing WANG,
期刊论文
Untethered quadrupedal hopping and bounding on a trampoline
Boxing WANG, Chunlin ZHOU, Ziheng DUAN, Qichao ZHU, Jun WU, Rong XIONG
期刊论文
Understanding coupled factors that affect the modelling accuracy of typical planar compliant mechanisms
Guangbo HAO,Haiyang LI,Suzen KEMALCAN,Guimin CHEN,Jingjun YU
期刊论文
A brief review on nonlinear modeling methods and applications of compliant mechanisms
Guangbo HAO,Jingjun YU,Haiyang LI
期刊论文
Conceptual design of compliant translational joints for high-precision applications
Guangbo HAO,Haiyang LI,Xiuyun HE,Xianwen KONG
期刊论文
Robust topology optimization of hinge-free compliant mechanisms with material uncertainties based on
Junjie ZHAN, Yangjun LUO
期刊论文
Manufacturing error analysis of compliant 3-DOF microrobot
CHAO Dai-hong, LIU Rong, WU Yue-min, SHI Long, ZONG Guang-hua
期刊论文
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
期刊论文